GB300

The Sup+ GB300 (short for Game Box) is a cheap handheld that emulates video game consoles. You can find it on AliExpress and other sites. In general, the GB300 is a few dollars more than the cheapest game consoles on AliExpress often dubbed the Famiclones, but the GB300 offers more than ten classic consoles (instead of just the Famicom), comes with way more games (even on the Famicom), does not have repeats, does not consist of mostly Chinese homebrew and hacks, you can add your own games, and you can save (states and sometimes standard GBA battery saves). It also has a modding community. So do yourself the favor and don't buy anything cheaper than the GB300.

There are two quite different firmwares, called the GB300 v1 and GB300 v2. You can simply upgrade and downgrade by copying a few files to your TF card.

Where to get: The cheapest way to get it (around 9 dollars with taxes if you're in the EU) is via AliExpress's "Pick 3 and Save" (aka "Bundle Deals") if it's available there. This isn't always the case. As you need at least 3 items there, we suggest you buy a case (or a TF reader if you don't own one) and a bigger TF card (e.g. ALUNX 64 GB), as the stock card is known and prone to fail. (You could also buy three GB300...)

Is this a vertical SF2000? Somewhat. Compared to the Data Frog SF2000, the GB300 not only has a different form factor, but some other differences:

Things the GB300 does better than the SF2000	Things the GB300 does worse than the SF2000
Price (especially in Europe) Audio quality Support for PC-Engine (Turbografx-16) Support for Famicom Disk System, V.R. Technology VT02 and VT03 (all three are disabled by default and not currently accessible on GB300 v2) Slightly improved firmware Lighter (133 vs. 165 grams, partially attributed to the smaller battery)	Screen (especially viewing angle from left/right) No wireless gamepad connectivity Smaller stock battery Smaller stock TF card (you therefore have some GBA and arcade games less on the GB300 v2) No "digital analog stick"

GB300 v1 does not have the arcade.

This document is work in progress but mostly finished now for the v1 version of the firmware. Large parts target developers and anyone willing to mod the device, but the page has an FAQ for Players as well. Feel free to contact me, numma_cway, on Discord or Reddit. You can also create a fork and pull request, or open an issue on Github. If you have any questions, join the #data_frog_sf2000 channel on the Retro Handhelds Discord (choose SF2000 during onboarding). There is also a Gb300 dev thread on that Discord, but that's for developers and not really for end users. You can also visit r/GB300 on reddit.

FAQ for Players

tl;dr:

Don't's:

Do not use a quick charger (anything that can potentially deliver more than 5 volts). Otherwise, you will destroy your GB300.
Do not insert the battery with reversed polarity. Otherwise, you will destroy your GB300.
(GB300 v1 only) Do not use Tadpole (a tool made solely for the SF2000). Otherwise, you will break your GB300 (except for GBA).

Do's:

Patch the bootloader (either with GB300 Tool or manually) before making any other changes to the TF card, including getting a new one. Otherwise, you will break your GB300 (sooner or later). This has to be done once per device, not per TF card.
Optional: Get GB300 Tool.
Optional: Get multicore.
Optional: Read this document.

Topic	What you should know	What you can/should do
Device	Giant step from any cheaper handheld (the so-called Famiclones). 918 MHz MIPS CPU with 128 MB of high-latency DDR2. No networking whatsoever.	Buy one. Or spend a few dollars more on the Data Frog SF2000 which has the same performance but a better screen.
Screen	2.8" 320×240px LCD screen. Viewing angle from the sides is extremely bad, up/down is alright. Very bright black in dark environments. Cannot adjust brightness.	It is possible to take the screen from a SF2000 or buy this spare screen. Screen swaps on v1 require a different firmware.
Buttons	D-pad isn't very accurate.	You might want to add some tape (requires opening the console).
TV Out	Comes with a 70 cm cable from 3-pin 2.5 mm audio to two RCA (cinch) jacks. Can be used with most older TVs. If you are in Europe, your TV might instead have SCART, for which there are adapters. Some TVs don't like the signal in general.	If possible, use NTSC to prevent unnecessary vertical scaling. Do not plug in the cable before the device has fully booted.
Sound	Mono speaker (left channel). No phone plug. Audio quality is far superior to SF2000.	—
Battery	Standard 800 mAh 18650-type battery. Play and charge time both are around 2 hours (power consumption: 1 W). Device has overcharge protection but not undercharge. Do not use a quick charger. Cannot be charged with a USB-C-to-USB-C cable. Playing while charging is not recommended.	Do not leave the device turned on or undercharge will kill the battery. You can change the battery to a better one as 800 mAh really small. By default only ones with "tips" connect, while flat ones do not. You can buy them online and in e-cigarettes stores. Mind the polarity when replacing the battery or you will destroy the device.
TF Card (=microSD)	8 GB card, 1.75 GiB (GB300 v2: 0.78 GiB) free. Device is picky about the cards it takes at all, and cheap ones are more likely to work. Included card works with any standard TF reader or SD reader via any TF-SD adapter. You could use a phone to access the TF card, but that's not convenient. SDXC is supported (SDHC and SDXC hardware are exactly the same), but you will have to use FAT32 which is non-standard for SDXC for unknown reasons (FAT32 supports 16 TiB, but SDXC is limited to 2 TB). Yet some AliExpress microSDXC cards come preformatted to FAT32 so you can use those right away. We don't know the maximum TF capacity, but 64 GB works.	Get a larger TF card and make sure it's formatted in FAT32 (Rufus has been suggested for SDXC, as Windows won't let you format SDXC in FAT32). Then just copy the content from your old card (you might want to copy the `bios` folder first, just in case). Before you copy any stuff to the new TF Card, patch the bootloader with your current card. The latter and general device management are greatly simplified by using GB300 Tool.
Firmware General	Closed-source OS that uses `libretro` cores (see the list of stock emulators). Also supports Sega Master System and Kids Computer Pico ROMs but doesn't come with ROMs for these. Could play FDS and VT02/03 ROMs, but these features are disabled. Some SNES and many GBA games are slow. Access pause menu by pressing Start+Select.	Patch the bootloader to spare yourself of a bug in its FAT32 implementation. Copy `gba_bios.bin` where the firmware expects it to slightly improve compatibility. (GB300 Tool can do both for you. It can also enable FDS and VT02/03 support.) Install fan project multicore on your TF card to add loads of new platforms and greatly improve GBA performance. It can be a bit tricky to add ROMs and configure it, but GB300 Tool can ease that once multicore is installed.
ROMs	Comes with 6267 ROMs. Expecially the NES ROMs are often modified (hacks) according to No-Intro. There are seven hardcoded lists that you can edit with GB300 Tool and a modded version of Frogtool.	Create the folder `ROMS` and put your own ROMs there. Also create a subfolder `save` there so you can save. You can patch Game Gear ROMs into SMS ROMs.
Saving	Stock GBA does not reliably battery-save (battery is the correct term for an in-game save), Pokémon mini (on multicore) can save as well, and all other emulators (including multicore) cannot battery-save at all. (Soft resets can load a battery if it was saved without leaving the emulator in the meantime, so you can complete Pokémon.) States work alright but you cannot (usually) use them in other emulators. `m2k` on multicore does not support states.	Use only save states. Import GBA battery saves (`.sav`) by placing them in both, `ROMS` and `GBA`, and Pokémon mini saves (`.eep`) in `ROMS\save`.
Interface	There are 55 image files and a text file that you can modify. You can also modify sounds or replace the font file.	Use GB300 Tool to edit the image files since the file names and file format are both very odd. It can also edit the text file. Sounds can be converted using Kerokero - SF2000 BGM Tool. The font file is a standard TTF font.
Button Mapping	You can reassign buttons for each console, but the editor is seriously bugged.	GB300 Tool can tell you what you actually bind.
Accessories	Supports connecting a very rare type of wired gamepad for the second player. A likely source has been discovered only recently. Wireless gamepads are not supported.	It is believed that this is the only way to buy one. This listing has a bundle. Both don't ship worldwide. For the first listing, make sure to buy the wired version. Note that they sell them in pairs, but you can only connect one. More listings, some of them shipping worldwide, appeared in late summer 2024.
Support	There is no known way to contact the manufacturer because we don't know who that is.	Ask on Retro Handhelds Discord (choose SF2000 during onboarding) or reddit.

What is the GB300 v2?

GB300 v1	GB300 v2

The GB300 v2 is basically the SF2000's firmware with two more emulators, Mednafen PCE Fast and – for whatever reason – wiseemu/libvrt. Another thing that got SF2000 owners jealous were the game list items scrolling horizontally if the ROM name is too long, and that ROMs also start when you press A.

To be completely clear: The GB300 v2 is a firmware and therefore software. The hardware is the same.

Upgrading to v2

If you have a compatible 16 GB or larger TF card at hand:

Patch the bootloader with your existing TF (we are serious about this!) - you can use GB300 Tool v1.0b for that
Backup your ROMS folder and save subfolders. Also backup the entire PCE folder!
Upgrade SF2000 firmware - this will format (wipe) the TF card
Extract this on your TF
If it doesn't work (black screen), put this in bios (you can skip this step if you want to install multicore (step 8))
Recommended: Copy your PCE folder back on
Optional: Copy your save and ROMS backup back on
Optional: Get Multicore 0.10 v0.3.1 (you cannot use multicore released after 0.10 v0.2.1 to directly up- or downgrade!)
Optional: Enter GB300 Tool v2 and click Check All in the 2nd to 9th tab each to enable ROMs removed from the GB300 v2 but shipped with the SF2000

If you do not have a compatible 16 GB TF card at hand:

Patch the bootloader with your existing TF (we are serious about this!) - you can use GB300 Tool v1.0b for that
Extract this on your TF
If it doesn't work (black screen), put this in bios (you can skip this step if you want to install multicore (step 5))
Optional: Copy your save and ROMS backup back on
Optional: Get Multicore 0.10 v0.3.1 (you cannot use multicore released after 0.10 v0.2.1 to directly up- or downgrade!)
Enter GB300 Tool v2 and click Uncheck All in the ARCADE tab to remove the games you do not have

After upgrading to v2, you can add FBAlpha sets (support list) and FBNeo sets (support list) with GB300 Tool v2. You can only add FBA Arcade ROMs to the seventh static list, called ARCADE by default.

Downgrading to v1

Patch the bootloader (we are serious about this!) - you can use GB300+SF2000 Tool v2.0 series for that
Install multicore 0.10 v0.2.1 or older.
Recommended: Enter GB300 Tool v1 and click Check All in the 1st to 7th tab each to disable ROMs (primarily GBA) removed from the GB300 v2 but present in the GB300 v1's menu

Tools

Most tools designed for the SF2000 don't work, especially for the GB300 v1. Tools are often incompatible because not only is the BIOS different, but also the Resources have different names. (GB300 v1 only) This is especially true for Tadpole. Just starting it already patches your ROM lists and will break all default ROMs. It will only leave the GBA (because the files used for the GBA on the GB300 are used for the arcade on the SF2000, but there is no ARCADE folder for Tadpole to scan). If you did use Tadpole, look for the files in the Resources folder with the current date and restore the backups Tadpole put there.

(GB300 v1 only) The following tools were made specifically for the GB300 v1:

multicore for GB300 by osaka, Prosty and the creators of the original multicore for SF2000 (mostly kobil).
- m2k patch by me, with more games supported
GB300 Tool v1.0b by me (numma_cway). Includes tons of features, including the functionality of any non-sound-related tool below.
Customized Frogtool (Beta) by tzlion (original version) and Dteyn (GB300 patch), used for rebuilding the console-dependent ROM lists.
GB300 Boot Logo Changer by Dteyn

(GB300 v2 only) The following tools were made specifically for the GB300 v2:

multicore for GB300 by osaka, Prosty, Karl Ellis, Mutandone and the creators of the original multicore for SF2000 (mostly kobil). Use v0.3.1 or newer.
GB300+SF2000 Tool v2 by me (numma_cway), also increases number of supported Neo Geo games on stock
You can probably use tadpole, but it won't be able to manage PCE ROMs and does not support multicore. madpole does support multicore, but doesn't not support PCE either.

Tools for the SF2000 that work for the GB300:

BIOS CRC-32 Patcher by Von Millhausen, required after manual changes to the bisrv.asd file
Generic Image Tool by Von Millhausen, converts to and from RGB565 and BGRA8888 images
Kerokero - SF2000 BGM Tool by Dteyn
Save State Tool by Von Millhausen – Due to the strange CPU architecture, people don't think that converting save states makes any sense. But you can use it to extract screenshots. This tool is incompatible with multicore and NES ROMs with an .nfc extension (that includes file names inside ZIP, obfuscated ZIP and thumbnailed files).
Silent menu music by Von Millhausen
Silent Sounds Pack by Dteyn

multicore

Fan project multicore gives you access many more emulators and enjoy way better GBA performance. It is hard to manage without tools, but one tool exists for this.

Important: Starting with multicore 0.10 v.0.3.0, multicore releases must match the firmware version that is currently installed on your TF card. You cannot directly upgrade or downgrade your firmware. Read more.

Discord users osaka (bnister) and Prosty (_prosty) brought multicore to GB300 v1 on April 27th, 2024. These two also ported it to GB300 v2 on October 5th, 2024, with contributions from Karl Ellis and Mutandone.

Installing and Using multicore with GB300 Tool

The easiest way to use multicore is probably via GB300 Tool. Download the ZIP file (the one with the cube icon) and start the tool. Enter your TF reader's drive letter and follow these steps:

Check the first checkbox on the BIOS/Device page that comes up right after entering your drive letter and hitting 'Start'.
Put the TF card in your GB300 and boot. It will display some progress indicator during boot for a few seconds.
Turn off the GB300 and put the card in your TF reader again.
Put bios and cores folders from the 7-Zip file on your existing TF card (so the bios folder overwrites (merges with) the existing folder). If you are on the GB300 v2, make sure to not use 0.10 v0.3.0, because it is incomplete.
Restart GB300 Tool to make it notice that you now have multicore.
Select one of the first nine (eight in v1) tabs in GB300 Tool and either click "Add..." or drop your ROMs on the tool. It will ask you for the multicore core, but will have recommendations for you. If GB300 Tool tells you that you need a BIOS, you will normally need to put it the bios folder on your TF card. Here's a list of cores. Most cores link to libretro's docs with more information on BIOS.

You only have to do steps 1 to 5 once.

Installing and Using multicore Manually

Before you do anything else: Patch the bootloader. Really! Spare yourself the possible trouble with the device not booting because of a buggy FAT-32 implementation.
Put bios and cores folders from the 7-Zip file on your existing TF card (so the bios folder overwrites (merges with) the existing folder). If you are on the GB300 v2, make sure to not use 0.10 v0.3.0, because it is incomplete.
For each "core" (the term means emulator – the GB300 CPU is single-core) you want, create a subfolder with its name in ROMS and put your ROMs for that core in its subfolder. Here's a list of cores.
Run make-romlist found in the root directory of your TF card now. It does not actually make a ROM list but creates so-called stubs. These are zero-byte (empty) .gba files passed to the GBA emulator. However, the GBA emulator was given a hook that will run multicore if the file name conforms to a certain file name pattern.
- If you don't want to run the script, you can create the stubs yourself. The pattern is CORENAME;FILENAME.gba. Example: Zero Wing.MD is placed in ROMS\sega to be launched with the sega core. Then you need to create ROMS\sega;Zero Wing.MD.gba, ROMS\sega;Zero Wing.MD.agb or ROMS\sega;Zero Wing.MD.gbz.
Many of the emulators added by multicore require one or more BIOS files. In the Google Spreadsheet linked above, there is one link to libretro docs per core. That linked page will explain what BIOS files you need (the section is missing if an emulator does not use BIOS files). BIOS files must be placed in the bios folder of your TF card.

Thumbnailed Stubs

Users are adviced to use GB300 Tool for this. Below is the technical documentation on how the tool does this.

(GB300 v2 only) On the GB300 v2, you can use the ZFB method: Just have your ZFB point to a file name conforming to the above pattern. That file does not have to exist. Your .zfb stub can have any name. This method does not work in user ROMs, so multicore stubs in user ROMs cannot have an arbitrary name either.

The second way to add thumbnails (and the only one that works on GB300 v1) is super weird: The filename (without the extension) of the .zfc, .zsf, .zpc, .zmd or .zgb file must conform to the multicore pattern, however, the extension is pulled from the contained file. So the file name inside the ZIP file does not matter, but must end on .gba, .zgb or .agb. Basically you could take any stock GBA file, and for example name it sega;Zero Wing.md.zsf to make it launch ROMS\sega\Zero Wing.md with the sega core.

Converting ROMs and Save States to multicore

Multicore saves in ROMS\save. The thumbnail (screenshot) is named and formatted like always, but with no payload other than the image, as the state is in another file. This file isn't compressed.

(GB300 v2 only) GB300+SF2000 Tool v2.0-beta3 and up can directly convert stock ROMs to multicore. Just right-click any stock list. If you are moving to TGB Dual, DoublecherryGB, Picodrive or Mednafen PCE Fast, you can even keep your save states. Note that multicore needs uncompressed ROMs, so this process will use a lot of space on your TF card.

If you're on the GB300 v1, you will have to do this manually:

Start GB300 Tool and navigate to the ROM in question.
Export ROM.
Rightclick the state to Export State Data.
Add the exported ROM again and pick the core that matches stock: TGB Dual or DoublecherryGB for GB/GBC, Picodrive for MD/SMS, or Mednafen PCE Fast for PCE.
Rightclick the empty area where the states would be and select Create State with Data. Now choose your experted state data.

The state thumbnail might glitch on your device, but that does not prevent the state from loading properly.

Hardware

General: The hardware is very similar to the SF2000. The processor is the same 918 MHz MIPS processor (HiChip/HCSEMI B210, overclocked from 810 MHz) with 128 MB of high-latency DDR2 RAM, originally designed to be used in DVD players and DTV set-top boxes. The most important difference is the vertical form factor which makes the GB300 look a bit like the much heavier Game Boy Color (209 vs. 133 grams). The GB300 lacks the SF2000's "digital analog stick" and the buttons feel somewhat cheap.

Screen: The screen is a cheap LCD screen compared to the SF2000’s IPS screen. The horizontal viewing angle (left/right) is extremely small, but vertical is alright. Especially when playing dark games in a dark room, the very bright black is an issue, as neither device has a brightness control. People who love the GB300 for its form factor, audio and straight-forward interface have bought an SF2000 just to swap its screen into the GB300, so the rest of the device can't be that bad, hmm? You can buy a spare screen, too. The GB300's default screen has diagonal(!) screen tearing. It isn't really noticeable unless there's flashing or fading. Scrolling is alright.

TF Card: The device ships with only a 8 GB TF/microSDHC card (42 MB of which aren't allocated to a partition), formatted FAT32. It includes the firmware and the default set of 6267 ROMs (less but slightly better ones on the GB300 v2). This leaves around 1.75 GB (0.78 GiB on the GB300 v2) for your own ROMs. Actually, there's more space if you follow the manual: All the ROMs are just for demonstration and you are supposed to delete them right when you receive the console, even though the menus are hardcoded to exactly these files. The GB300 is picky in terms of which TF cards it will accept. Rule of thumb: The cheaper, the more compatible. We suggest you do not exceed 64 GB for the same reason. If you are moving to a new card, make sure to patch the bootloader first (with your old card). Then make sure your new card is FAT32 and copy all files to it.

TV Out: The device comes with a 70 cm (28") cable from a 2.5mm male audio plug to two male RCA (cinch) plugs. The yellow RCA plug is for composite video and the red one for sound. You can plug them into older TVs either directly or via a SCART adapter. If you plug the cable in the GB300, its own screen and sound will be turned off. The TV output has a better resolution (640x480) than the internal screen's 320x240 (display the bottom-right pixel of each 2×2 pixel block). If your TV doesn't care, use NTSC 480i to avoid unnecessary vertical scaling to 576i. NTSC outputs a vertically pixel-perfect result of the user interface. Unlike the SF2000, the TV signal will be fine while charging the GB300. (GB300 v1 only) Do not plug in the AV cable until the device has completely booted (that includes not plugging in the cable before switching the device on, meaning that the full-size bootlogo is never used).

Peripherals: The GB300 works with the wired gamepads that sometimes ship with some other cheap(er) consoles. You cannot normally buy them individually and the GB300 wasn't sold bundled with them either until this listing appeared in mid/late June 2024. These devices work for solely the second player in games that support that. Wireless gamepads don't work on the GB300, e.g. the gamepad bundled with the SF900 TV stick that works with the SF2000. Note that neither of these complies with industry standards like USB or BT, so they don't have any use with computers, laptops or mainstream consoles. If your gamepad connects to any of these, it's definitely not compatible with the GB300. There are two types of the wired gamepads for consoles like the GB300, the common 5-wire used by all the cheaper Famiclones and the super-rare 4-wire. The GB300 only supports the latter. A source for these has been discovered in early June 2024. This comes despite the fact that "external gamepad double against" is even promoted on the front of the GB300's box... To be completely clear: Wired gamepads, a TV and 5V of USB power are the only things you can connect to your GB300. There is no internet or any other type of linking available.

Battery: The GB300 is powered by a standard 18650 battery that you can easily change. The device has overcharge protection (the charging current will drop when the battery is full), yet the green charging light will not turn off. If the battery is very low (crashes and glitches), it will take a little under 4 VAh until it stops charging. This suggests that the capacity is lower than the SF2000's 1750 mAh. This is supported by the manual and box listing 800 mAh, and people reporting that the (light pink and completely unlabeled) battery of the GB300 is lighter than the SF2000's. More recently, people have reported receiving labelled batteries, confirming the 800 mAh. Neither device has undercharge protection, so leaving the device on with a low battery can kill the battery. One person reported that their GB300 came with the power switch in the 'ON' position and therefore a dead battery. Buying a new battery worked. If you buy a new battery, buy one with tips (not flat) and consider both, over- and undercharge protection. Although the SF2000 takes flat batteries, the GB300 requires some manipulation to its contact springs due to the console's case design. Mind the polarity when replacing the battery, or you will destroy the console. The GB300 initially charges with around 2.5 to 2.9 W, which decreases as it charges.

Related Devices: Another similar device (other than the SF2000) is the 8 Bit King, but that's an HDMI stick with wireless gamepads. It's usually around one dollar cheaper than the GB300 and lacks support for SNES, GBA and MD/SMS because it has less/worse RAM. There is a hack for limited MD/SMS support though. The 8 Bit King too plays your own ROMs and can save.

Better Devices: If you want to spend a bit more, you can buy the SF2000 for primarily a better screen but much worse audio. If you're in Europe, the SF2000 is usually completely overpriced and you should buy the R36s when it's on sale, but that's a way different device.

Worse Devices: Do yourself the favor and don't buy anything cheaper than the GB300. Read the first paragraph on this page. If you need more reasons, search 400-in-1 game console (or 500, 600, or 800-in-1) on YouTube.

General Firmware Features

The GB300's stock firmware emulates the following devices:

Nintendo Entertainment System (Famicom)
Famicom Disk System (disabled, but can be enabled on GB300 v1)
V.R. Technology VT02/VT03 (disabled, but can be enabled on GB300 v1)
NEC PC Engine (Turbografx-16)
Super Nintendo Entertainment System (Super Famicom)
SEGA Master System (SEGA Mark III)
SEGA Mega Drive (SEGA Genesis)
SEGA PICO (Kids Computer Pico) – debatable if this is different from the Mega Drive
Game Boy
Game Boy Color
Game Boy Advance
(GB300 v2 only) 1431 Arcade games, 949 of which could be considered working according to madcock
- GB300 Tool v2 increases this number by another ca. 300 working ones by doing some sort of "conversion"

Fan project multicore adds dozens of new platforms, for example:

Atari 2600, 5200, 7800
Atari Lynx
Bandai Wonderswan, Wonderswan Color and Benesse Pocket Challenge v2
Connecticut Leather Company Colecovision
Commodore 64
Mattel Intellivision
NEC PCE-CD
Nintendo Pokémon mini
SEGA SG-1000
SEGA Game Gear
SEGA Mega-CD
SEGA 32x (performance isn't good, but playable)
SNK Neo Geo Pocket and Neo Geo Pocket Color
Watara SuperVision
2241 Arcade games, all but 6 could be considered working
- My mod adds 62 new ones
A few fantasy consoles, e.g. CHIP-8, Pico-8
A few game engines, e.g. DOOM
A few other home computers

Compared to the SF2000's stock firmware, the GB300 adds the PCE and (theoretically) the VTxx. However, GB300 v1 does not have the arcade. PCE and arcade can be added using multicore. While multicore's Mednafen PCE Fast works well, multicore has MAME 2000 instead of Final Burn Alpha (a MAME fork), because multicore team couldn't get FBA or newer versions of MAME to run properly. Performance and compatibility with larger-filesize games are both worse on multicore MAME 2000 than on SF2000's FBA, e.g. m2k can only load 34 of the 228 ROMs that ship with the SF2000, and Wildfang is the only one of these that runs at full speed. The ROMs that ship with the SF2000 are generally more graphically challenging. Two rules of thumb: You can espect multicore's MAME 2000 to have performance issues with ROMs that are bigger than around 1 MB (compressed) or look better than your usual Mega Drive games. MAME fails to load ROMs larger than around 60 MB uncompressed due to a lack of available memory. This affects six games, for two of them I managed to make a patch.

There is no chance you could enable VTxx on the SF2000. If you don't mind the weird colors, you could also play Game Gear games that do not make use of the Start button. Change the .gg extension to .sms to make them show up. smspower.org has color patches ("GG2SMS") for around 200 GG games (they list 185 different games, for which there are 225 versions on No-Intro, but not all versions are supported). There's a list of GG2SMS patches that work on the GB300 in this document.

There's actually two things called "firmware" on the GB300: There is a small bootloader (512KiB) that loads the firmware from the TF card. You should patch that bootloader to prevent issues when tampering with files in the BIOS folder on the TF card. Really. This patch works for the GB300 as well and takes only a few seconds. With the bootloader separated from the rest of the firmware and the firmware on a TF card, any modding attempts are relatively safe.

The SF2000 firmware does not work on the GB300. There is no known way to retrieve an updated official firmware because the manufacturer is unknown. See multicore below for a modified firmware for the GB300 made by the users. A port of GB300's firmware to SF2000 has been made so people can enjoy the easier interface and use GB300 Tool. There is also a version with multicore.

(GB300 v1 only) The default BIOS dates to the 15th of December, 2023. There might be an older version dating back to the 26th of October, 2023, but the only evidence of that one was corrupted before we could examine it.

(GB300 v2 only) There seem to be two v2 BIOS versions. One dates to 3rd of July, 2024, the other to the 2nd of August, 2024. The latter is a bit smaller but seems to be more compatible with different screen revisions. Beside the different BIOS, the earlier of the two versions also comes with two savesgames, for Pokemon - Emerald Version and Sonic Advance (both are GBA games). See What is the GB300 v2? for more details on the GB300 v2 and how to upgrade your GB300 v1. Fans usually call the two v2 variants by the name of the first user who posted them: The smaller one is called Vinícius, the bigger one wearenumber421.

Saving

Savestates: The device features four save states per game which allow saving at any point (press Start+Select). However, they are usually incompatible between different emulators. If you want to try anyway, you first need to extract them from their zlib-based format (same as on the SF2000). There is a tool for that. .nfc ROMs (including those in compressed files) use uncompressed save states which are not supported by that tool, but GB300 Tool. Tests with VBA-M's GBA save states (after extracting the gzip file that is VBA-M's save state format) didn't work (black screen on the GB300). See above for details on migrating stock states to multicore.

Battery Saves: Normally, you would be able to exchange battery files between emulators. These are the files that store the savegames created by the games' save feature (should one exist). Until around the year 2000, you needed a battery to store these, hence the name, but nowadays, you use flash memory. However, there's an issue with battery saves on the GB300:

GBA: If you want to load a battery file from another emulator, place it in the ROMS folder (not the save subfolder). For stock ROMs, it sometimes uses the (user) ROMS folder and sometimes the GBA folder, so put your saves in both folders. Saving is a bit more complicated. Sometimes it works, sometimes it doesn't. And even if you can load a battery before turning off the device, this does not guarantee that you will still be able to load it after turning off the device. Saving and loading without switching off the GB300 in the meantime works for GBA games. Should you need to get your battery file from the device, load your state and save in-game. Repeat until you can load your battery after restarting the GB300. Then you should have a working battery file.
GB/GBC: Many people are concerned about Pokémon games which force a soft reset after beating the Champ. Luckily, this is no issue at all for the stock GB/GBC emulator, if you saved in-game after you last loaded a state (or started a new game). This will normally be the case if you make sure that you do not save a state before you're back in the game. In other words: Do not save and load a state during the intro. How can you quickly test this with any GB/GBC/GBA emulator in the world? Save a game, press A+B+Start+Select and you should be able to load the battery. This is not an emulator feature but implemented by nearly all ROMs.
Need to do more research on the other emulators.

Multicore generally cannot battery-save if the core conforms to libretro's standards (battery save API). However, pokem for example does not conform to libretro's standards, so it can battery-save (.eep). It can also create/load states (.state0 to .state3) from the PC version of PokeMini. Note that all pokem games create a .eep, even those without a save feature like Zany Cards. m2k cannot even state-save. A patch implementing libretro's new battery save API was made by Discord user leonardo024624, adding battery support to all cores. However, no build for GB300 exists yet. Because it is statically linked, it would also require recompiling all cores. Even if it was available, Leonardo's patch currently only works if you gracefully exit the game (in contrast to turning of the device or having it freeze for whatever reason).

ROMs and Gameplay

* * * This entire section is about the stock firmware. It does not apply to multicore which cannot run zipped ROMs and therefore none of the stock ROMs either. Multicore does not take away any functionality, so installing multicore will still allow you to use the stock emulators with stock ROMs and any custom ROMs (unless the filename contains a semicolon and ends on any GBA extension). * * *

To play your own games, create the folder ROMS (case-insensitive like all filenames on FAT-32) on the TF card and put your ROMs there. You can also use single-file ZIP files to save memory. Also create a save subfolder (ROMS\save), because the GB300 will not create one for you and fail saving if that subfolder is missing.

Stock ROMs however come in their own format. The first 0xEA00 bytes are a 144x208 pixel RGB565 image with no header whatsoever. (You can technically change the size of the image, see the Foldername.ini section of this document.) After that comes a ZIP file, obfuscated with five differences to keep you from opening it:

The magic numbers are different as they bear the initials of CubeTac's Wang QunWei, or Wise Wang. There are three magic numbers in a standard ZIP file with one contained file:
- The local header magic number is 0x57515703 instead of the standard 0x504B0304.
- The central directory header magic number is 0x57515702 instead of the standard 0x504B0102.
- The end of central directory header magic number is 0x57515701 instead of the standard 0x504B0506.
Both occurences of the file name in these headers had their bytes xor 0xE5'd.

Changing the things above will give you a standard ZIP file. At least 7-Zip is already fine if you just fix the local header's magic number, even though the file inside will have a strange filename then. The obfuscation is purely optional, but found in all stock ROMs.

Emulator	Version	Git Commit	File Extensions	Bitmask
XZip-XUnZip	unknown	unknown	`.bkp`, `.zip`	`0x00000100`
(thumbnailed file)			`.zfc`, `.zsf`, `.zpc`, `.zmd`, `.zgb`	`0x00000300`
XZip-XUnZip	unknown	unknown	`.zfb`*	`0x00000300`
Snes9x 2005	v1.36	unknown	`.smc`, `.fig`, `.sfc`, `.gd3`, `.gd7`, `.dx2`, `.bsx`, `.swc`	`0x08000000`
FCEUmm	none	`7cdfc7e`	`.nes`, `.fds`, `.unf`, ~~`.unif`~~	`0x01000000`
wiseemu/libvrt	unknown	unknown	`.nfc`	`0x02000000`
TGB Dual	v0.8.3	`9be31d3`	`.gbc`, `.gb`, `.sgb`	`0x20000000`
gpSP	v0.91	`261b2db`	`.gba`, ~~`.bin`~~, `.agb`, `.gbz`	`0x10000000`
PicoDrive	1.91	`cbc93b6`	`.bin`, `.md`, `.smd`, `.gen`, ~~`.32x`~~, ~~`.cue`~~, ~~`.iso`~~, `.sms`	`0x04000000`
Mednafen PCE Fast	v0.9.38.7	unknown	`.pce`, ~~`.cue`~~, ~~`.ccd`~~, ~~`.chd`~~	`0x80000000`
Final Burn Alpha	v0.2.96.86	`a324b2d`	`.zfb`*

* = (GB300 v1 only) .zfb does have the bitmask 0x00000300 used for thumbnailed files, but the GB300 can only show thumbnails for the third to seventh file extension in its list (which is identical to the one above). .zfb is the eighth in that internal list so there is no thumbnail. The lack of a thumbnail for .zfb is funny because on the SF2000, the sole use of .zfb is to provide the thumbnail for a file in another directory. ZFB is short for ZIP Final Burn (an arcade emulator), despite not containing zipped content on the SF2000. See above for more information on creating a multicore thumbnail.

* = (GB300 v2 only) Final Burn Alpha is only available in GB300 v2, where .zfb acts like a thumbnailed shortcut. The (onfuscated) ZIP after the thumbnail is replaced with the following content: One 32-bit number (usually 0, but there are cases where it is 1 (LE) for an unknown reason), file name relative to a bin subfolder and a 16-bit number that is 0.

wiseemu or libvrt is the name of this emulator on platforms where it is a separate file. It was created by Wise Wang. The other emulators are from libretro. If they were used in that context, they'd report all the given extensions to libretro, but the GB300 does not display the stroke-out ones. .bin files are associated with PicoDrive, not gpSP, so they are stroke-out for the latter.

ZIP and thumbnailed files are both allowed to be optionally obfuscated. And yes, even a .zip file is allowed to be obfuscated.

The bitmask is located in the BIOS where it comes after the extension. The block with this data is close to the end of the BIOS file. Open it a hex editor and search for NFC because that string does not occur anywhere else. .nfc is associated with a different NES emulator (wiseemu) than the .fds, .nes and .unf (FCEUmm). The .nfc extension is seen in 280 of the 868 stock ROMs. The most notable difference is that wiseemu's save states are uncompressed. Loading .fds fails for both, but can be enabled.

The GB300 relies on the extension (or, more precisely, the extension's bitmask) to decide what to do with the file:

Display a thumbnail?
Search for ZIP or WQW header and decompress the file before starting the ROM? All files with a thumbnail also belong into this category. This means that there is no way to have a thumbnail without compression.
Choose the emulator (see the table above).

There are no signs of other supported emulators, but it looks like MPEG-2 support is included but inaccessible. If you force the GB300 to display .chd files, opening one will cause it to load indefinitely, even for the tiniest PCE-CD game out there, Hawaiian Island Girls (under 3 megabytes). Same goes for .cue files no matter if MD-CD or PCE-CD.

Nintendo Entertainment System

On the SF2000 and GB300 v2, there are more files than were accessible by the default menu. These normally inaccessible files were removed from the GB300 v1 completely:

Island.zfc
Jump Jump.zfc
Little Witch.zfc
Mad Xmas.zfc
Metroid.zfc
Miner1.zfc*
Nut Cracky.zfc
Pobble.zfc
Sodoku.zfc*

Games with an asterisk are duplicates of games that are still on the device.

The GB300 comes with two NES emulators: FCEUmm is associated with .nes, .fds, .unf, whereas a mysterious other emulator called wiseemu is used for .nfc. To find out which one is used for which stock ROM, see this list. FCEUmm seems to be the better one for NES. You can see the difference in Galaxian which clearly glitches/tears.

(GB300 v2 only) There are two more NES games, but they's in the ROMs folder:

ARES.nes: Ares (Captain America and the Avengers hack)
BARESARK.nes: Baresark (SD Hero Soukessen - Taose! Aku no Gundan hack)

Famicom Disk System

(GB300 v1 only – full section) (Feature does exist on GB300 v2, but we cannot currently enable it.)

To enable FDS support in stock, do any of the following:

Open bios\bisrv.asd in a hex editor and stuff 0xa7f00b at offsets 0x34f170, 0x34f194 and 0x34f1b0. Remember that you need to rehash the BIOS after making changes to it.
Enable the feature in the most recent version of GB300 Tool.

In both cases, you must put disksys.rom in ROMS (does not respect your Foldername.ini). Now you can simply start .fds images like any other ROM.

To play double-sided disks, you need a way to eject them, turn them around and insert them. Virtually, that is. This is done by binding keys to 0x0A00 (FDS Turn Disk) and 0x0B00 (FDS Eject/Insert). This is not possible by the GB300's GUI but you can use GB300 Tool or a hex editor. More details are found here. To be clear: You must press three buttons to turn the disk: Eject, Turn and Eject again.

Thanks to osaka (bnister) for finding all this out.

V.R. Technology VT02/VT03

(GB300 v1 only – full section) (Feature does exist on GB300 v2, but we cannot currently enable it.)

Now we get to something the SF2000 cannot do, not even with multicore: V.R. Technology made some Famicom clones (Famiclones) that weren't just clones but technically more advanced than the Famicom, called the VTxx. As Sup+ was mostly known for making Famiclones (400-in-1, 500-in-1, a.s.o.) before making the GB300, the GB300 retains Wise Wang's strange Famiclone emulator, even on the GB300 v2. Discord user bnister (osaka) did some research on this. I won't explain the steps required to enable it, as you can simply check the two checkboxes in GB300 Tool's July 2024 version (the one that reads v1.0-final, not the one that reads v1.0). Files must have the .nfc extension.

You can get VTxx ROMs from Project Plug-and-Play and from the Internet Archive. Note that the tagging of ROMs in Project Plug-and-Play is inconsistent and their games are more prone to issues than those from the Internet Archive. Notes on Project Plug-and-Play:

Most games that are untagged or tagged VT02 are actually NES games. You can play them in FCEUmm and wiseemu without changing the iNES header.
Some VT03 games are not actually tagged as such, e.g. most/all TimeTop games are actually VT03.
Many VT03-tagged games in Project Plug-and-Play do not load on the GB300 or the sprites are glitched. Games available for different VTxx chips and games from Jungletac rarely load. Not a single original CubeTac game works. TimeTop's games and a few of CubeTac's hacks (e.g. Arrow Maze) however work very well.
Many soccer-related VT03 games do load but do not register input.
A few untagged VT03 slot machine games from Jungletac do load, but have weird colors.
Some games changed platform during development. The first demo of Street Dance works on FCEUmm, whereas the second demo and the final bundle with Hit-Mouse require VTxx emulation. Said game is pointless on the GB300's nameless emulator since PCM audio does not work. (And you cannot connect your dance mat to the GB300, making this game even more pointless.)
Roughly half of the VT09-tagged games in Project Plug-and-Play do load, but these have weird interlaced graphics, making most of them unplayable. The other half does not load.

Only about 10% of the OneBus games in Project Plug-and-Play work. OneBus is a requirement for VTxx. Checking for OneBus is easy in Project Plug-and-Play files because you just look at address 0x05 in the iNES header. If it's 0x00, the game has no CHR ROM and is therefore a OneBus ROM.

This is the full list of the 784 OneBus games from Project Plug-and-Play (2023-12-31) that you can play on the GB300:

Group (`.7z`)	Game (`.nes`)	Type
Cube Tech\Hacks
Arkanoid	Pocket	VT03
Balloon Fight	Beat Ballute	VT03
Battle City	S Move	VT03
Brush Roller	Pengoo	VT03
Duck Maze	Maze Trooper	VT03
Elevator Action	Spy vs. Spy Combat	VT03
Flappy	Pro Genius	VT03
International Cricket	Cricket World Cup 2003	VT02
Magmax	3D Machine	VT03
Penguin-kun Wars	Fire Ball	VT03
Pooyan	Maze Arrow (VT03)	VT03
Raid on Bungeling Bay	Aero Gyrodine	VT03
Spelunker	Ghost Zero Trap	VT03
Sqoon	Deep Fighter	VT03
Thexder	Xtreme Robot	VT03
Hummer
Ping Pong	Ping Pong	VT02
Inventor
Street Dance	Street Dance (rev1)*	VT02
Jungletac
Bubble Blaster	Bubble Blaster (rev0)	VT02
Go Bang	Go Bang	VT02
Number Quest	Number Quest	VT02
Pool Pro	Billiards Master	VT02
Submarine War	Submarine War (VT09)	VT02
Nice Code Software
Mad Xmas	Lucky Time (VT03)	VT03
Nice Code Software\Intellivision
Snafu	Star (VT03)	VT03
TimeTop
Adventure	Adventure	VT03
Bomb Boy	Bomb Boy	VT03
Firebolt	Firebolt	VT03
Gun-Force	Gun-Force*	VT03
Risker	Risker*	VT03
Stone Age	Stone Age*	VT03
TimeTop\Hacks
F-1 Race	Crazy Speed*	VT03
Unknown Developer
Duck & Dodge	Duck & Dodge	VT03
Hip-Hop Scotch	Hip-Hop Scotch	VT03
Snowstorm	Snowstorm	VT03
Unknown Developer\Hacks
Pinball	Radium Star	VT03

The type given above is what I think is the cartridge type (VT02: requires mapper 12; VT03 also requires LUT patch to not look green-ish). NintendulatorNRS distributed by Project Plug-and-Play does not always agree with me. Games with an asterisk have some glitches that do not technically prevent you from playing them.

UM6578, VT32, VT168 and VT369 never load.

Research is still going on. I am also preparing a list of VT03 ROMs from the Internet Archive that you can play on the GB300.

PC Engine

Performance of PCE is really good. Even the "3D" racing games run very smoothly.

There seems to be no way to get it to run TurboGrafx-CD games.

None of the only five SuperGrafx games work. The screen is all black or purple, and that's not even deterministic. Aldynes has music for some seconds, but then crashes. Pressing the start button before it crashes gives you a purple screen with some glitches at the bottom center, then the game instantly freezes. None of the games will freeze the GB300.

Super Nintendo Entertainment System

The SNES and GBA are the main systems where games can have a bad performance. However, the SNES has a lot less issues than the GBA.

Final Knockout does work on the GB300. It was broken on the SF2000 because the bytes from 0xA8000 to 0xBFFFF of the .zsf file were replaced with unidentified data.

On the SF2000, there was one more file than was accessible by the default menu. This normally inaccessible file was removed from the GB300 completely:

手柄测试.zsf

(GB300 v1 only) The issue mentioned above was newly introduced for the following two games:

Wwf Royal Rumble.zsf
Wwf Super Wrestlemania.zsf

You can re-enable them in GB300 Tool.

(GB300 v2 only) The GB300 v2 does have both WWF games mentioned above, but instead lacks Al Unser Jr.'S Road To The Top.zsf. This file and 手柄测试.zsf are still present on the GB300 v2, but not in the menu.

SEGA Mega Drive, SEGA Master System and SEGA Game Gear

SEGA Mega Drive

Compared to the SF2000, the following game is missing:

007 Shitou - The Duel.zmd

(GB300 v2 only) On the GB300 v2, that game and the following three are present on the card, but incaccessible via the menu:

Alien Soldier.zmd
AWS Pro Moves Soccer.zmd
Double Clutch.zmd

(GB300 v1 only) One thing got better on the GB300: Instead of the 225 broken thumbnails on the SF2000, there are only 45 on the GB300. These thumbnails were saved in BGRA8888 instead of RGB565. However, the dimension is correct. Despite the thumbnail taking up twice the space, the device is still able to find the archive and run the game. The following MD games have no working thumbnail on the GB300:

AWS Pro Moves Soccer.zmd
Coach K College Basketball.zmd
Davis Cup II.zmd
Davis Cup Tennis.zmd
Double Clutch.zmd
ESPN Baseball Tonight.zmd
Fun 'n Games.zmd
HardBall III.zmd
James Pond III.zmd
King of the Monsters.zmd
Madden NFL '94.zmd
Madden NFL 95.zmd
Madden NFL 96.zmd
Mario Lemieux Hockey.zmd
Mr. Nutz Hoppin' Mad.zmd
Muhammad Ali Heavyweight Boxing.zmd
NBA Live 95.zmd
NFL '95.zmd
NHL 96.zmd
NHL 97.zmd
NHL 98.zmd
PGA Tour 96.zmd
PGA Tour Golf III.zmd
PGA Tour Golf.zmd
Pro Quarterback.zmd
Puyo Puyo 2.zmd
R.B.I. Baseball '94.zmd
Ren & Stimpy Show Presents - Stimpy's Invention.zmd
RoboCop versus The Terminator.zmd
Rolo to the Rescue.zmd
Sampras Tennis 96.zmd
Scooby-Doo Mystery.zmd
Spirou.zmd
Sub-Terrania.zmd
Super Baseball 2020.zmd
The Smurfs Travel the World.zmd
Tintin au Tibet.zmd
Triple Play - Gold Edition.zmd
Triple Play 96.zmd
Wolverine - Adamantium Rage.zmd
World Series Baseball '95.zmd
World Series Baseball '96.zmd
World Series Baseball 98.zmd
World Series Baseball.zmd
Wu Kong Wai Zhuan.zmd

GB300 Tool can fix them for you all at once.

On the GB300 v2, Double Clutch.zmd (which is inaccessible by default) is the only one that's still bugged.

SEGA PICO

The SEGA PICO is technically identical to the Mega Drive. It looks like a children's laptop, but you place the book-shaped cartridges ("storyware") where you would expect a screen and connect it to a TV for video. As this is simply the Mega Drive, the GB300 can run SEGA PICO ~~games~~ software. No PICO storybook ROMs ship with the console though.

Even current versions of PicoDrive do not support its successor, the SEGA Advanced Pico Beena.

SEGA Master System

Only MD is advertised and there are no SMS games included. The device will still play them if you add them yourself. The button assignments are strange, though:

SMS Button 1 is called B by the GB300 and defaults to B.
SMS Button 2 is called C by the GB300 and defaults to R.
The pause key that is located on the SMS physical console (not on the gamepad) is on Start.

SEGA Game Gear

Most Game Gear games will load. (The games that don't load will have a black screen.) The Game Gear's resolution is 160x144, but the emulator displays this in the center of the SMS's 256x192 pixel viewport. Graphics outside the center 160x144 area sometimes make sense (so you basically have an extended vision) but in some cases they're glitched. Colors are severely glitched all the time, but Audio is fine. If you don't mind the weird colors, you could play, if it wasn't about one other thing: The Game Gear has a D-Pad (which corresponds to the GB300's D-Pad), a "1" button (which the GB300 calls B and is mapped to the B button by default) and a "2" button (which the GB300 calls C and is mapped to R by default). And then, well, there's the "Start" button, which isn't mapped at all and none of the key IDs I tried (-1 through 19) corresponded to it. The majority of the Game Gear games require you to press it to get past the title screen (or, in some cases, to start the game after picking options), most notably almost all Sega games (the only exception that I know of is the beta version of the Sega Game Pack 4 in 1). Of the 25 best-rated Game Gear games on MobyGames, there are only seven that aren't blunt ports from other GB300 consoles and only one of the latter does not require the use of the Start button: Magical Puzzle: Popils.

smspower.org has patches for many games, especially the unique ones, that will change them to SMS. The Start button seems to be an issue for them as well, because the SMS has no direct equivalent.

The logical equivalent would be the Pause key, but it's located on the console and not on the gamepad. Most patches seem to be made for owners of the actual console, sitting a few meters away from it, so the Pause button is out of reach. A few patches use it anyway. This equals Start on your GB300.
A few games do not make use of both of the gamepad's buttons, so hackers bind Start (and pause) to the unused one.
You can connect an MD gamepad to the SMS, so hacks can make use of its dedicated Start button. A few hacks do that. Even after playing almost 500 GG2SMS hacks, I'm still not sure if this works on the GB300.
A few hacks address the button issue on the title screen only, as both available buttons have no use there anyway, but leave the pause function non-working. That's not an issue for you, as the GB300 has its own pause menu. A very few games pause themselves when you enter the GB300's pause menu, even though you had no Start button and you cannot resume anymore...
All of the above options will work on the GB300, but by far the most common Start replacement in these patches is moving the second controller's D-pad down. Sadly, that's the most problematic one.

Here's a complete list of Game Gear to SMS conversions that you can play on your GB300 because they work and do not require an external gamepad. There are 88 different games (103 including regional versions, revisions and re-releases). The following tables uses A and B for the buttons to make them easier to distinguish.

No-Intro Name (Other Names)	ID	CRC-32 Before	Best Patch	CRC-32 After	Pause	Start Does	Outside 160×144
Aa Harimanada (Japan)	0002	`1d17d2a0`	v0.6	`442398bb`	?	-	useful
Arcade Classics (USA)	0013	`3deca813`	v1.0	`3ea9582d`	?	-	blank
Arena (USA, Europe) (Arena Maze of Death)	0015	`7cb3facf`	v0.31	`f9a9e13f`	?	-	glitched
Ariel - The Little Mermaid (USA, Europe, Brazil) (En)	0016	`97e3a18c`	v1.1	`98c81182`	?	-	useful
Baku Baku (USA)	0025	`8d8bfdc4`	v1.1	`2360c031`	Start	Start	blank
Batman Forever (World)	0028	`618b19e2`	v1.1	`5c80865b`	Start	Start	glitched
Batter Up (USA) Gear Stadium (Japan)	0030 0128	`16448209` `0e300223`	v0.3	`df35fa20` `148b2704`	?	-	glitched
Battleship - The Classic Naval Combat Game (USA)	0031	`e9987511`	v1.1	`500eff47`	?	Start	glitched
Battletoads (Japan, Europe) (En) Battletoads (USA)	0032 0033	`cb3cd075` `817cc0ca`	v1.1	`7aa39825` (for both)	Start	Start	glitched
Berlin no Kabe (Japan)	0037	`325b1797`	v1.2	`e8b0a245`	Start	Start	blank
Bishoujo Senshi Sailor Moon S (Japan)	0038	`fe7374d2`	v0.2	`95f50b0e`	Start	Start	glitched
Bugs Bunny in Double Trouble (USA, Europe)	0042	`5c34d9cd`	v0.1	`4542f03d`	?	Restart	glitched
Bust-A-Move (USA)	0043	`c90f29ef`	v1.0	`920970f1`	B	Restart	background
Buster Ball (Japan)	0044	`7cb079d0`	v1.2	`3bf5c4d8`	Start	Start	blank
Buster Fight (Japan) (En,Ja)	0045	`a72a1753`	v1.0	`f76c577c`	?	Freeze	useful
Captain America and the Avengers (USA)	0047	`5675dfdd`	v0.4	`c8c650f9`	Start	Start	glitched
Chessmaster, The (USA, Europe, Brazil) (En)	0053	`da811ba6`	v1.1	`27696636`	Start	Start	blank
Clutch Hitter (USA)	0060	`d228a467`	v1.1	`f042b9c7`	Start, A	Start	blank
Crazy Faces (Europe) (Proto)	0493	`46ad6257`	v1.0	`28e07c39`	Start	Start	blank
Crystal Warriors (USA, Europe)	0067	`529c864e`	v1.11	`702483aa`	Start	Start	glitched
Dr. Franken (Europe) (Demo)	0485	`c9907dce`	v1.0	`810adea6`	?	Crash	useful
Ganbare Gorby! (Japan) (Factory Panic, Crazy Company)	0125	`a1f2f4a1`	v0.4	`ac0e19ea`	A	-	glitched
Fatal Fury Special (USA) Fatal Fury Special (Europe) Garou Densetsu Special (Japan)	0108 0458 0127	`449787e2` `fbd76387` `9afb6f33`	v1.2	`4b7f7b2d` `1c6cfac7`	Start	Start	glitched
Frogger (USA) (Proto)	0117	`02bbf994`	v0.92a	`71112e1e`	Start	Start	glitched
Galaga '91 (Japan) (Galaga 2)	0122	`0593ba24`	v1.0	`812d56ee`	B	-	mostly blank
GG Aleste (Japan) (En) GG Aleste (Japan) (En) (Aleste Collection)	0132 0807	`1b80a75b` `0a49407d`	v1.2	`c84576ba` `d98c919c`	B	-	background
Power Strike II (Japan, Europe) (En) (GG Aleste II)	0286	`09de1528`	v1.6	`f0b7cef6`	Start	Start	useful
GG Portrait - Pai Chen (Japan)	0134	`695cc120`	v1.0	`11875dea`	?	-	glitched
GG Portrait - Yuuki Akira (Japan)	0135	`51159f8f`	v1.0	`ec9023ee`	?	-	blank
GG Shinobi, The (Japan) Shinobi (World) (Rev A)	0138 0137	`83926bd1` `30f1c984`	v1.1	`c79d7b37` `85b0c578`	B	-	background
GP Rider (World)	0141	`876e9b72`	v1.0	`48966551`	B	-	glitched
Griffin (Japan)	0143	`a93e8b0f`	v1.01	`8653cb4d`	?	-	background
Gunstar Heroes (Japan)	0144	`c3c52767`	v0.9	`9fbd6261`	Start	Start	background
Tarot no Yakata (Japan) (House of Tarot)	0152	`57834c03`	v1.0	`fe6180fd`	?	Restart	glitched
Itchy & Scratchy Game, The (USA, Europe)	0162	`44e7e2da`	v0.99	`f15d8e09`	?	-	useful
J.League GG Pro-Striker '94 (Japan)	0163	`a12a28a0`	v1.0	`628518c7`	?	-	background
J.League Soccer - Dream Eleven (Japan)	0164	`abddf0eb`	v1.0	`79b83f96`	?	-	background
James Pond 3 - Operation Starfi5h (Europe)	0166	`68bb7f71`	v1.1	`71bb012e`	?	-	background
Jeopardy! (USA)	0168	`d7820c21`	v1.0	`7066f925`	?	Freeze	glitched
Jeopardy! - Sports Edition (USA)	0169	`2dd850b7`	v1.0	`fe274916`	?	Restart	glitched
Junction (Japan) (En)	0174	`a8ef36a7`	v1.1	`203f4abe`	B	-	blank
Kinetic Connection (Japan)	0183	`4af7f2aa`	v1.0	`ae1e11b4`	A	-	blank
Madden NFL 95 (USA)	0200	`75c71ebf`	0.1	`dbc73e55`	?	-	glitched
Magical Puzzle Popils (World) (En,Ja)	0209	`cf6d7bc5`	v1.1	`e48ac8a3`	?	-	blank
Mighty Morphin Power Rangers (USA, Europe)	0224	`9289dfcc`	v0.6	`e6c9e6c3`	Start	Start	glitched
Mighty Morphin Power Rangers - The Movie (USA, Europe, Brazil) (En)	0225	`b47c19e5`	v0.61	`66e2943f`	Start	Start	glitched
Nazo Puyo 2 (Japan)	0236	`73939de4`	v0.9	`a0715293`	?	-	blank
NFL Quarterback Club 96 (USA)	0246	`c348e53a`	v1.0	`e130321e`	?	Restart	useful
Ninja Gaiden (USA, Europe, Brazil) (En) Ninja Gaiden (Japan)	0251 0250	`c578756b` `20ef017a`	v1.2	`244bc257` (for both)	?	-	glitched
Pac-Attack (USA)	0261	`9273ee2c`	v1.0	`c57cd3f1`	B	-	blank
Pac-in-Time (USA) (Proto)	0262	`64c28e20`	v1.01	`5c547a12`	?	-	glitched
Pac-Man (Japan) (En)	0263	`a16c5e58`	v0.91	`aaeb0ebd`	A	-	glitched
Paperboy 2 (USA)	0266	`8b2c454b`	v1.0	`0d491508`	?	-	glitched
Pengo (Europe) Pengo (Japan)	0268 0267	`0da23cc1` `ce863dba`	v1.0_nv	`c466c41f` `3bb9e266`	A	-	blank
Phantasy Star Adventure (Japan)	0275	`1a51579d`	v1.1	`9a34f904`	?	-	blank
Pinball Dreams (USA)	0278	`635c483a`	v1.0	`9b1e554a`	?	-	glitched
Pop Breaker (Japan)	0284	`71deba5a`	v1.2	`70f930e7`	A+B, Start	Start	useful
Primal Rage (USA, Europe)	0288	`2a34b5c7`	v1.0	`4405645e`	?	-	glitched
Psychic World (USA, Europe, Brazil) (En) (Rev 1)	0295	`73779b22`	v1.0	`5da0dabd`	Start	Start	glitched
Puyo Puyo (Japan) (En,Ja) (Puzlow Kids)	0298	`d173a06f`	v1.0	`718376c0`	?	-	blank
Ristar (World) (Ristar - The Shooting Star)	0311	`efe65b3b`	v1.5	`40707acd`	Start	Start	useful
Royal Stone - Hirakareshi Toki no Tobira (Japan)	0315	`445d7cd2` `11d36c92`	v1.2^en v1.2^jp	`8e95363c`	?	-	glitched
Shanghai II (Japan) (Rev A) Shanghai II (Japan)	0456 0325	`81314249` `2ae8c75f`	v1.0	`a3852ecb` (for both)	?	-	glitched
Shaq Fu (USA)	0326	`6fcb8ab0`	v0.1	`52531898`	?	-	glitched
Shikinjou (Japan)	0327	`9c5c7f53`	v1.0	`f670d70d`	B	Restart	blank
Slider (USA, Europe) Skweek (Japan)	0336 0335	`4dc6f555` `3d9c92c7`	v1.2	`94a1f113` `59ed0b75`	B	Restart	glitched
Solitaire FunPak (USA)	0338	`f6f24b75`	v1.0	`c5e6fbb1`	N/A	-	blank
Solitaire Poker (USA, Europe) Ryuukyuu (Japan)	0339 0316	`06f2fc46` `95efd52b`	v1.0	`08d4d240` `74c64832`	?	-	useful glitch
Sonic Drift (Japan) (En)	0344	`68f0a776`	v0.4	`43258667`	Start	Start	useful
Sonic Drift 2 (World)	0346	`d6e8a305`	v1.1	`051fb276`	Start	Start	useful
Sonic Labyrinth (World) Sonic Labyrinth (USA, Europe) (Virtual Console)	0347 0802	`5550173b`	v1.1a	`1d51f6d3` `fd304176`	A	-	glitched
Sonic The Hedgehog - Triple Trouble (USA, Europe, Brazil) (En)	0352	`d23a2a93`	v0.4	`1e40e1ea`	Start	Start	mostly useful
Soukoban (Japan)	0354	`0f3e3840`	v1.1	`e35a6edd`	A	-	blank
Spider-Man - X-Men - Arcade's Revenge (USA)	0357	`742a372b`	v1.1	`35a0a649`	Start	Start	mostly useful
Spirou (Europe) (Proto)	0359 0366	`ab622adc`	v1.1	`a9dd9a7c`	?	Restart	glitched
Star Wars (USA, Europe) Star Wars (USA, Europe) (Alt)	0365	`db9bc599` `0228769c`	v0.2a	`b7c53d7e`	?	-	useful ingame
Streets of Rage (World) (Bare Knuckle)	0368	`3d8bcf1d`	v0.56	`206d16e8`	Start	Start	glitched
Streets of Rage 2 (World) (Bare Knuckle II)	0369	`0b618409`	v0.71	`45b8adb8`	Start	Start	glitched
Super Golf (Japan)	0373	`528cbbce`	v0.1	`6753bb03`	?	-	glitched
Super Momotarou Dentetsu III (Japan)	0375	`b731bb80`	v1.0	`65cbd81f`	N/A	-	blank
Surf Ninjas (USA, Europe, Brazil) (En)	0383	`284482a8`	v1.0	`11d9e074`	?	-	glitched
Tails Adventure (World) (En,Ja) (Tails Adventures) ~~Tails Adventure (World) (En,Ja) (Virtual Console)~~	0386 0803	`5bb6e5d6` `a354ea49`	v1.5 v1.3	`8635c737` `2935ba70`	Start	Start	useful
Tarzan - Lord of the Jungle (Europe)	0394	`ef3afe8b`	v1.0	`52a3501b`	?	-	glitched
Tempo Jr. (World)	0398	`de466796`	v1.0	`4a707dfb`	Start	Start	glitched
Tesserae (USA)	0402	`bf696f94`	v1.0	`415e61d0`	?	-	useful glitch
WildSnake (USA) (Proto)	0501	`d460cc7f`	v1.0	`0c45632b`	A	-	blank
Yu Yu Hakusho II - Gekitou! Nanakyou no Tatakai (Japan)	0439	`46ae9159`	v1.0	`7afa5fa3`	A	-	useful glitch
Yu Yu Hakusho - Horobishimono no Gyakushuu (Japan)	0438	`88ebbf9e`	v0.1	`475b35f8`	?	-	glitched

Notes:

The versioning scheme is inconsistent on SMS Power. This list uses v1.0 for releases called v1.
I applied 387 different patches to 225 games and then played the resulting 490 ROMs. Should there be new hacks released after April 25th, they might be better than the ones above.
The column "Pause" names the button to pause the game. "N/A" means that it is not necessary to pause the game according to SMS Power and probably not possible in the original game either. "?" means that you cannot pause with the GB300 alone. Usually, this means that a second gamepad's down button would work.
The column "Start Does" tells you what the Start button does with the ROM: "Start" means that it does what the Start button is supposed to do. Dash means that nothing happens at all when you press Start. "Restart", "Freeze" and "Crash" all mean that you cannot play anymore after pressing Start. "Crash" means that the game glitches and instantly freezes.
"Outside 160×144" explains what you can see outside the GG viewport: "blank" means nothing (solid color, usually black) and is preferable on games that do not scroll. "background" means that you can see the background but sprites still pop up only when entering the GG viewport. "glitched" describes that the non-GG part of the SMS viewport does not make sense and contains glibberish or random map tiles. "useful glitch" is used for games with a map that is only slightly bigger than the GG viewport. The map extends beyond the GG viewport, but can wrap to the other edge of the screen. "useful" means that the hacks use (almost) the entire SMS viewport and feel like a true SMS game.
Notes on individual games:
- Aa Harimanada: Version v0.5 fixed the colors after the end of a fight, but also introduced frequent health bar glitches. Since v0.6 makes use of the full screen, I consider v0.6 to be the best patch. If you're annoyed by the health bar glitch, use patch v0.4.
- Arcade Classics: Missile Command SEGA Version seems glitched.
- Berenstain Bears' Camping Adventure, The: I did start a Cave Adventure during my first test by pressing the Start button, but never managed to do that ever again. So this game is not listed.
- Frogger: You'll often find a 256KiB ROM, but that's an overdump. The actual size is 128KiB and has the CRC-32 values above. The overdump has da724710 and applying the patch results in a working ROM (68b958f0). The first half of the 256 KiB ROMs is identical to the 128 KiB ROM.
- Magical Puzzle Popils: The map editor is completely glitched and you cannot exit it.
- Mighty Morphin Power Rangers - The Movie: There is some white text on white background.
- Pinball Dreams: Heavily glitched colors in transitions.
- Pop Breaker: A+B is not only Pause but also self-destruct (I think that's only if you press them a bit longer). Beware!
- Royal Stone: One of the two patches includes an English translation. There are many of these hacks that include a translation for the respective game, but this is the only one that works.
- Sega Game Pack 4 in 1: Requires a second gamepad for the Start button and therefore isn't listed. The beta version didn't require the use of the Start button, but the hack results in a non-working ROM. I did test the earliest and latest beta version of all games whenever the final version required pressing the Start button and beta versions where available, but Sega Game Pack 4 in 1 was the only game whose beta version was different in this regard.
- Slider/Skweek and Solitaire Poker/Ryuukyuu: Use the respective version's patch. The wrong one does not work. This is in contrast to Pengo, where BcnAbel76's patch only works for the wrong ROM (the A button does not work if the patch is applied to the intended ROM), but nextvolume's patch is better and region-independent.
- Surf Ninjas: Menu is completely glitched, but in-game it's okay.
- Tails Adventure: v1.4 and v1.5 do not work for the Virtual Console one. Patch the normal version if you can.

There's a few more GG games that you can play, because technically they are normal SMS games and will therefore not have glitched colors. Some ROM sites even list these with an .sms extension although they're in the Game Gear category. Still, some ROMs will not work.

No-Intro Name	ID	CRC-32	Remarks
Castle of Illusion Starring Mickey Mouse (USA, Europe, Brazil) (En)	0051	`59840fd6`	Start button is working
Cave Dude (USA) (Proto)	0503	`cc521975`	Start button neither working nor mandatory
Chase H.Q. (USA)	0480	`c8381def`	Start button neither working nor mandatory
Excellent Dizzy Collection, The (Europe)	0100	`aa140c9c`	Game does not load
Fantastic Dizzy (USA, Europe) (En,Fr,De,Es,It)	0105	`c888222b`	No useful video, glitched audio
Jang Pung II (Korea) (En) (Unl)	0469	`76c5bdfb`	No useful video, no audio
Mickey Mouse no Castle Illusion (Japan)	0050	`9942b69b`	Start button is working
Olympic Gold (Europe) (En,Fr,De,Es,It,Nl,Pt,Sv)	0256	`1d93246e`	Start button is working
Olympic Gold (Japan, USA, Brazil) (En,Fr,De,Es,It,Nl,Pt,Sv)	0257	`a2f9c7af`	Start button is working
OutRun Europa (USA)	0260	`f037ec00`	Start button neither working nor mandatory
Predator 2 (USA, Europe)	0287	`e5f789b9`	Start button is working
Prince of Persia (USA, Europe) (Beta)	0290	`45f058d6`	Start button is working
Prince of Persia (USA, Europe)	0289	`311d2863`	Start button is working
R.C. Grand Prix (USA)	0305	`56201996`	Start button neither working nor mandatory
Rastan Saga (Japan)	0306	`9c76fb3a`	Start button is working
Street Battle (USA) (Proto) (Unl)	0506	`01a2d595`	No useful video, no audio
Street Hero (USA) (Proto 1)	0489	`9fa727a0`	No video, glitched audio
Street Hero (USA) (Proto 2)	0490	`fb481971`	Start button neither working nor mandatory
Super Kick Off (Europe) (En,Fr,De,Es,It,Nl,Pt,Sv)	0374	`10dbbef4`	Start button is working
Taito Chase H.Q. (Japan)	0391	`7bb81e3d`	Start button is working
WWF Wrestlemania - Steel Cage Challenge (USA, Europe)	0433	`da8e95a9`	Start button neither working nor mandatory

This list contains only ROMs listed on No-Intro. GoodGG has more ROM than No-Intro.

Other SEGA Consoles

Despite the undocumented support for PICO, SMS and options to make GG games work, you aren't that lucky with the other Sega consoles. If you change the GB300's BIOS to display them or change the extension (it doesn't matter which of these you do, with the exception of a very few SG-1000 games), the following things will happen:

Sega CD games (.bin or .cue) will load indefinitely/freeze the console, even the tiniest and/or single-image ones (Ishii Hisaichi no Daiseikai, around 10 megabytes – the largest GBA games are 32 megabytes).
Most Sega 32X games will not display anything at all, even if you put the correct BIOS in the root or Roms directory. A few games will display "something":
- Both versions of Knuckles' Chaotix display an error message.
- NBA Jam: Tournament Edition, Star Trek: Starfleet Academy - Starship Bridge Simulator and WWF Raw display glibberish.
- Mars Check Program Version 1.0 (SDK Build) (Set 2) and Toughman Contest display a green screen.
- Mars Check Program Version 1.0 (SDK Build) (Set 1) and WWF WrestleMania: The Arcade Game display a red/orange screen.
Most SG-1000 games will "load". (The games that don't load will freeze the device, e.g. Champion Baseball 40kB.) There is no video (black screen), but audio is fine. Buttons are also fine. (Note that applications like Home Basic likely don't have sound, so you can't tell if they're loading or not.) SG to GG/SMS conversions do not work. Well, unless your goal is to analyse the screen tearing – all these patches cause the entire screen to quickly change color. So: Do not try this if you're photosensitive.
Advanced Pico Beena ROMs display a black screen.

Game Boy

On the SF2000 and GB300 v1, there are more files than were accessible by the default menu. These normally inaccessible files were removed from the GB300 v1 completely:

Aladdin [a].zgb
Dokuhon Yume Goyoshin - Tenjin Kaisen 2.zgb
Gakken Kanyouku Kotowaza 210.zgb
Gluecksrad.zgb
Goukaku Boy Series - Chuugaku Eijukugo 350.zgb
Goukaku Boy Series - Eijukugo Target 1000.zgb
Goukaku Boy Series - Eitango Target 1900.zgb
Goukaku Boy Series - Gakuken Yojijukugo 288.zgb
Goukaku Boy Series - Koukou Nyuushi Rika Anki Point 250.zgb
Goukaku Boy Series - Nihonshi B Yougo Mondaishuu.zgb
Goukaku Boy Series - Nihonshi Target 201.zgb
Goukaku Boy Series - Rekishi 512.zgb
Goukaku Boy Series - Sekaishi B Yougo Mondaishuu.zgb
Goukaku Boy Series - Z Kai Chuugaku Eigo 1132.zgb
Kirby's Pinball Land.zgb
Teenage Mutant Ninja Turtles - Back from the Sewers [a].zgb
Uchiiwai - Kyoudai Kami Waza no Puzzle Game.zgb
X.zgb

Game Boy Color

On the SF2000 and GB300 v2, there are more files than were accessible by the default menu. These normally inaccessible files were removed from the GB300 v1 completely:

3-D Ultra Pinball Thrillride.zgb
Honkaku Taisen Shogi - Ayumu.zgb
Konami GB Collection Vol.1.zgb
Konami GB Collection Vol.2.zgb
Konami GB Collection Vol.3.zgb
Konami GB Collection Vol.4.zgb
Pokemon - Gelbe Edition.zgb
Pokemon - Gold Version.zgb
Pokemon - Goldene Edition.zgb
Pokemon - Kristall Edition.zgb
Pokemon - Silberne Edition.zgb
Pokemon - Silver Version.zgb
Pokemon - Version Argent.zgb
Pokemon - Version Cristal.zgb
Pokemon - Version Jaune.zgb
Pokemon - Version Or.zgb
Pokemon - Versione Argento.zgb
Pokemon - Versione Cristallo.zgb
Pokemon - Versione Gialla.zgb
Pokemon - Versione Oro.zgb
Pokemon Card GB 2 - Team Great Rocket Visit.zgb
Pokemon Crystal.zgb
Shadowgate Return.zgb
Shogi Oh.zgb
Shougi 2.zgb

Game Boy Advance

(GB300 v1 only) Unlike all other consoles in the GB300, the GB300 has all the ROM files the SF2000 has.

(GB300 v1 only) Pokemon Glazed is the only non-MD file with an incorrect thumbnail, but not because of an incorrect format but because it's too big (346x500). It will still run. Like all (CN) versions, this game has been removed from the GB300 v2.

The GB300 ships with the official (pirated) gba_bios.bin in the bios folder. This is, however, not the folder where the emulator will look for it. To use the official BIOS, copy it to \GBA\mnt\sda1\bios\gba_bios.bin and \Roms\mnt\sda1\bios\gba_bios.bin (create all of these folders if they do not exist). Thanks to bnister (osaka) for finding this out. One game that requires this procedure is The Legend of Zelda - The Minish Cap (for the main menu), which however does not ship with the device. There are still games that don't work even with that BIOS. The BIOS does not seem to affect the performance. States with and without the BIOS are mutually incompatible. Loading a non-BIOS state when BIOS is active displays the GBA's boot animation and then starts the game. The battery from the state will not be present either. Under unknown circumstances, GB300's stock emulator stops using the GBA BIOS even if placed in the correct directory.

As in the SF2000, performance varies heavily between games. And even language versions: Probably the oddest example here are the two Advance Wars games, considered the best games for the GBA according to MobyGames. Graphically, they are very simple games. The American version of Advance Wars 2 (a hack of which with Chinese menus ships with the console) is somewhat playable. The American version of Advance Wars 1 works a tiny bit worse but is still playable. The European version of Advance Wars 1 (included with the console) performs too bad to be fun to play. The European Advance Wars 2 is basically unplayable because it's too slow. There is no PAL or NTSC version of the GBA or its games. They're always supposed to run at 60 fps. Using TV output doesn't improve the performance either, no matter if PAL or NTSC. Performance on all Advance Wars games gets even worse when there is any dialogue on screen. f 3D games on the GBA don't work well either. Of the five Need for Speed games for example (none of which are included), only Porsche (both regions) and Underground 2 will get past the language selection and the EA logo.

(GB300 v2 only) The GB300 v2 also lacks the following 141 games completely:

All 119 chinese bootlegs tagged with (CN) (nothing of value lost here)
FIFA 2004.zgb
FIFA.zgb
Hey Arnold! - The Movie.zgb
Konchu Ouja - Mushiking.zgb
LEGO Star Wars - The Video Game.zgb
LEGO Star Wars II - The Original Trilogy.zgb
Lemony Snicket's - A Series of Unfortunate Events.zgb
Let's Ride! Sunshine Stables.zgb
Max Payne Advance.zgb
Medabots - Metabee Version.zgb
Medabots - Rokusho Version.zgb
Minna no Soft Series - Happy Trump 20.zgb
Robots.zgb
Shrek - Smash n' Crash Racing.zgb
Speedball 2 - Brutal Deluxe.zgb
SpongeBob SquarePants - The Movie.zgb
The Chronicles of Narnia - The Lion
the Witch and the Wardrobe.zgb
The Lord of the Rings - The Fellowship of the Ring.zgb
The Lord of the Rings - The Third Age.zgb
Tiger Woods PGA Tour 2004.zgb
Tiger Woods PGA Tour Golf.zgb and Tony Hawk's Underground.zgb

They were likely removed to make room for Arcade ROMs.

Arcade

Introduction: How does arcade emulation work?

There are thousands of arcade machines. An emulator is programmed to replicate their hardware, resulting in what is called a driver per emulated hardware platform. Some machines are based on the same hardware, so their ROMs can be handled by the same driver. The largest drivers are Neo Geo, CPS1 and CPS2. Hundreds of high-quality games have been released for these three.
Unlike all other emulators, arcade emulators are not made to support "all" games, even on a supported driver. Arcade games usually have more than one ROM, so all ROMs come in a ZIP file, called a set. Drivers are programmed to load only a limited number of sets, for which they require that the ZIP file and all files inside have exactly the names the driver expects (they sometimes can work with CRC as well). File names inside the ZIPs vary heavily between sets. For Neo Geo, a few common naming patterns have been established, but even then there might be single ROM files inside a set that may be named differently.

In my opinion, this is extremely dumb. Sets should have information on how to load them. E.g. for Neo Geo sets, it's usually just about placing the ROMs in RAM, which you can often derive from the XML file ("DAT"), so there is a way how to ship this information in a text file. iNES and UNIF do something similar with NES games.

Because many people seem confused about the arcade games they can play on the GB300, here's the full list:

(GB300 v2 only) GB300 v2's FinalBurn Alpha (FBA), incorrectly dubbed MAME in the menu, knowns how to load 1431 sets (released no later than 2006). However, not all of them work. See the linked list. Games shipping with the SF2000 are tagged with inrom there, but stock GB300 v2 will lack the games found in the next list.
(GB300 v2 only) GB300+SF2000 Tool v2.0-beta and up can make the stock FBA run around 300 more playable Neo Geo sets (including the most recent homebrew like gladmort) from FinalBurn Neo (FBN). I chose Neo Geo for my project because CPS2 support in FBA is basically complete and for CPS1, there are only few games that could be looked into, but I found them boring. If you want me to look into a certain unsupported game whose driver is supported contact (not add!) me on Discord (numma_cway).
Multicore's MAME 2000 (m2k) can run 2241 sets (no newer than 1998). I don't think there's a list for humans to read, but you can search in this XML. Of these, six don't work because they need more ROM memory than the 63.1 MiB m2k can offer: kof97, kof98, lastblad, lastbld2, rbff2, shocktr2. Performance is way worse than FBA on GB300 v2 and SF2000.
My own version of MAME 2000, humorously called MAME nummacwaytausend (a pun in German), adds 62 Neo Geo sets. It reduces memory usage for kof97, lastblad so these work now. The most important sets supported by my version are mslug4fd and sengk3fd. For these two, it is the only emulator running these on GB300 and SF2000. It also supports the most recent homebrew like gladmort. These three games will run with around 45 FPS, as my version's performance did not improve over the standard m2k. You should be using FBA over MAME whenever possible.
Multicore's Geolith is another arcade emulator, but for Neo Geo only. Performance is absolutely horrible and sets in its ROM format are hard to find.

The SF2000 has access to all five variants. Leonardo's SF2000 multicore even ships with MAME nummacwaytausend which it calls m2kn.

(GB300 v2 only – remaining section)

Presumably to save space on the 8GB TF card, the GB300 lacks the following ROMs from the SF2000:

2020 Super Baseball.zfb
B.C. Kid.zfb
Bakatonosama Mahjong Manyuuki.zfb
Baseball Stars 2.zfb
Battle Flip Shot.zfb
Breakers.zfb
Capcom Sports Club.zfb
Captain Tomaday.zfb
Carrier Air Wing.zfb
Crossed Swords.zfb
Cyberbots- Fullmetal Madness.zfb
Eco Fighters.zfb
Fatal Fury Special.zfb
Fight Fever.zfb
Football Frenzy.zfb
Galaxy Fight -Universal Warriors.zfb
Garou -Mark of the Wolves.zfb
Ghost Pilots.zfb
Ghostlop.zfb
Ghouls'n Ghosts.zfb
Goal! Goal! Goal!.zfb
Gogetsuji Legends.zfb
Janpai Puzzle Choukou.zfb
Jyangokushi- Haoh no Saihai.zfb
Jyanshin Densetsu -Quest of Jongmaster.zfb
Karate Blazers.zfb
King of the Monsters 2 -The Next Thing.zfb
King of the Monsters.zfb
Knights of the Round.zfb
Knights of Valour 1.15.zfb
Knights of Valour Plus a.zfb
Last Resort.zfb
League Bowling.zfb
Magical Drop III.zfb
Marvel Super Heroes Vs. Street Fighter.zfb
Mega Man- The Power Battle.zfb
Mercs.zfb
Metal Slug 6.zfb
Metal Slug X -Super Vehicle-001.zfb
Minasanno Okagesamadesu! Daisugorokutaikai.zfb
Money Puzzle Exchanger.zfb
NAM-1975.zfb
Neo Bomberman.zfb
Neo Drift Out -New Technology.zfb
Neo Mr. Do!.zfb
Neo Turf Masters.zfb
Neo-Geo Cup '98 -The Road to the Victory.zfb
Nightmare in the Dark.zfb
Ninja Combat.zfb
Pang! 3.zfb
Panic Bomber.zfb
Pretty Soldier Sailor Moon.zfb
Pulstar.zfb
Puzzle De Bowling.zfb
Puzzle De Pon!.zfb
Puzzle Star.zfb
Street Fighter Alpha- Warriors' Dreams.zfb
Street Fighter II'- Champion Edition.zfb
Street Fighter II- The World Warrior.zfb
Super Puzzle Fighter II Turbo.zfb
Tenchi wo Kurau II- Sekiheki no Tatakai.zfb
The King of Fighters 2000.zfb
The King of Fighters '99 -Millennium Battle.zfb
Thunder Heroes.zfb
Top Player's Golf.zfb
Varth- Operation Thunderstorm.zfb
Zintrick.zfb

The following weren't accessible on SF2000 either. They were removed completely:

Aero Fighters 2.zfb
Aero Fighters 3.zfb
Area 88.zfb
B.C. Kid.zfb.bak
Chiki Chiki Boys.zfb
Cyber-Lip.zfb
Daimakaimura.zfb
Digger Man.zfb
Gururin.zfb
Karnov's Revenge.zfb
Kizuna Encounter -Super Tag Battle.zfb
Knuckle Bash.zfb
Knuckle Bash.zfb.bak
Lost Worlds.zfb
Magical Drop II.zfb
Matrimelee.zfb
Matrimelee.zfb.bak
Mille Miglia 2- Great 1000 Miles Rally.zfb
Neo-Geo Cup '98 -The Road to the Victory.zfb.bak
Power Instinct 2.zfb
Power Instinct 2.zfb.bak
Power Instinct.zfb.bak
Pretty Soldier Sailor Moon.zfb.bak
Pulstar.zfb.bak
Raiga -Strato Fighter.zfb.bak
SD Fighters.zfb
SD Fighters.zfb.bak
Shadow Warriors.zfb.bak
The Ultimate 11 -The SNK Football Championship.zfb
Windjammers.zfb
Zintrick.zfb.bak

The GB300 v2 includes an extra .zip (with no matching .zfb): mslug3.zip (the Metal Slug 3 in the menu is using mslug3h). mslug3 does not work with the stock FBA.

Resources (v1)

Note: There are no language strings on the GB300 v1, just a few images. Everything that is not in an image is hardcoded in English. For example, this applies for the error if your save subfolder is missing, both low battery warnings and of course the "Loading ..." screen.

Fonts (v1)

There is only one file, yahei_Arial.ttf, identical to the SF2000's (unused) font file of the same file name. Microsoft YaHei is a Chinese typeface that you can probably find on your computer. Despite also showing up as Microsoft YaHei when you open it, yahai_Arial.ttf is different as it uses Arial for non-Chinese script, but with some differences to the usual Arial typeface. For example, it does not feature so-called tabular figures (so names are not aligned in the game lists) and the baseline varies significantly between Latin letters, making the font look "wavy". Both of these concerns have been fixed on GB300 v2 which uses a different font.

Images (v1)

Unlike the SF2000, the GB300 supposedly does not have any unused images (not sure about the 'empty battery' screen though). Many have been renamed on the GB300 compared to the SF2000.

File	Comp's	Dim's	Description	View
`appvc.ikb`	BGRA8888	150x214	"missing image" image, also the white frame for thumbnails	view
`bfrjd.odb`	RGB565	640x280	language selection, Korean selected (the seventh item)	view
`bisrv.nec`	RGB565	640x480	pause menu, third entry selected	view
`bttlve.kbp`	BGRA8888	60x144	6 battery states	view
`bxvtb.sby`	BGRA8888	192x224	"TV SYSTEM" in 7 different languages	view
`c1eac.pal`	BGRA8888	26x22	checked checkbox, indicating the selected TV standard and language	view
`d2d1.hgp`	RGB565	640x480	pause menu, second entry selected	view
`dism.cef`	RGB565	640x480	pause menu, first entry selected	view
`dpskc.ctp`	RGB565	384x320	4 different selected save states	view
`drivr.ers`	BGRA8888	152x160	the five words of the pause menu in Arabic	view
`dsuei.cpl`	BGRA8888	152x160	the five words of the pause menu in English	view
`dufdr.cwr`	BGRA8888	240x168	"SETTING" in 7 different languages	view
`dxva2.nec`	RGB565	640x288	keyboard for search, embossed keys	view
`ectte.bke`	BGRA8888	1200x120	12 bottom tab items, default state	view
`eknjo.ofd`	RGB565	640x280	language selection, Spanish selected (the fifth item)	view
`exaxz.hsp`	BGRA8888	448x768	logos in the top left	view
`fhshl.skb`	RGB565	640x280	language selection, English selected (the first item)	view
`fixas.ctp`	BGRA8888	152x160	the five words of the pause menu in Chinese	view
`gpapi.bvs`	RGB565	640x480	pause menu, fifth entry selected	view
`hctml.ers`	RGB565	320x2256	6 images of the device with one of the shoulder and ABXY buttons highlighted	view
`hlink.bvs`	RGB565	640x288	keyboard for search, keys with a bright frame	view
`icuin.cpl`	BGRA8888	152x160	the five words of the pause menu in Russian	view
`igc64.dll`	BGRA8888	217x37	Yes/No, No highlighted	view
`irftp.ctp`	BGRA8888	152x160	the five words of the pause menu in Korean	view
`jccatm.kbp`	RGB565	640x480	empty battery screen	view
`jsnno.uby`	BGRA8888	240x168	"HISTORY" in 7 different languages	view
`kmbcj.acp`	BGRA8888	288x448	"Archive already exists, overwrite this archive?" in 7 different languages	view
`lf9lb.cut`	RGB565	640x280	language selection, Portuguese selected (the sixth item)	view
`lk7tc.bvs`	BGRA8888	52x192	key names (B, TB, C, TC, ST, ST, SL, SL, U, U, D, D, L, TL, R, TR, A, TA, Z, TZ, X, TX, Y, TY)	view
`mczwq.ikb`	RGB565	640x336	6 device logos (the GB/GBC share one) for the top of the pause menu; whenever you press the DOWN key in the pause menu, the image is shown or hidden depending on whether you are at the bottom (Joystick) of not	view
`mhg4s.ihg`	RGB565	400x192	Background for confirmation messages, with 3 different buttons selected (English only)	view
`mksh.rcv`	RGB565	640x288	keyboard for search	view
`ntrcq.oba`	BGRA8888	240x168	"SEARCH" in 7 different languages	view
`nvinf.hsp`	BGRA8888	1200x120	12 bottom tab items, selected state	view
`okcg2.old`	BGRA8888	24x24	star (for favorited games)	view
`ouenj.dut`	BGRA8888	240x168	"FAVORITES" in 7 different languages	view
`pwsso.occ`	RGB565	640x480	pause menu, fourth entry selected	view
`qasfc.bel`	BGRA8888	328x224	"Favorites are full !" (when already having 1000) in 7 different languages	view
`qdbec.ofd`	BGRA8888	240x168	"DOWNLOAD ROMS" in 7 different languages	view
`qwave.bke`	BGRA8888	152x160	the five words of the pause menu in Portuguese	view
`sdclt.occ`	BGRA8888	424x58	selection background	view
`sfcdr.cpl`	RGB565	640x480	main background	view
`sgotd.cwt`	RGB565	640x280	TV system selection, NTSC selected (first item)	view
`snbqj.uby`	RGB565	640x280	TV system selection, PAL selected (second item)	view
`t2act.sgf`	RGB565	640x280	language selection, Chinese selected (the second item)	view
`tvctu.uby`	RGB565	640x280	language selection, Arabic selected (the third item)	view
`ucby4.aax`	BGRA8888	448x224	"Folder is empty!" in 7 different languages	view
`urlkp.bvs`	BGRA8888	328x224	"Remove from favorites?" in 7 different languages	view
`vdaz5.bjk`	RGB565	640x280	language selection, Russian selected (the fourth item)	view
`wshrm.nec`	BGRA8888	217x37	Yes/No, Yes highlighted	view
`wtrxj.lbd`	BGRA8888	192x224	"LANGUAGE" in 7 different languages	view
`xajkg.hsp`	BGRA8888	152x160	the five words of the pause menu in Spanish	view
`xjebd.clq`	BGRA8888	448x224	"No games match the keyword!" in 7 different languages	view
`zaqrc.olc`	BGRA8888	8x224	message box left/right border	view
`ztrba.nec`	RGB565	64x320	key names (single and prefixed with "T" for autofire; also without and with a whitish background)	view

ROM Lists (v1)

Your custom ROMs are alphabetically indexed into tsmfk.tax when the device boots. The following files contain the hardcoded names of the stock ROMs:

DefaultFolder	File name file	Chinese name file	Pinyin name file
FC	`rdbui.tax`	`fhcfg.nec`	`nethn.bvs`
PCE	`urefs.tax`	`adsnt.nec`	`xvb6c.bvs`
SFC	`scksp.tax`	`setxa.nec`	`wmiui.bvs`
MD	`vdsdc.tax`	`umboa.nec`	`qdvd6.bvs`
GB	`pnpui.tax`	`wjere.nec`	`mgdel.bvs`
GBC	`vfnet.tax`	`htuiw.nec`	`sppnp.bvs`
GBA	`mswb7.tax`	`msdtc.nec`	`mfpmp.bvs`

The Pinyin name file contains a Latin transcription of the Chinese names, but without vowels (except for Latin vowels in the Chinese names, e.g. FIFA). It is used for searching when language is set to Chinese. File names are relative to a folder that can be changed by editing Foldername.ini. The first row in the table above refers to the fourth row in Foldername.ini (which is FC by default) and so on. See the Foldername.ini section right below.

Internally, the above table continues with the file name files tsmfk.tax, Favorites.bin and History.bin. The latter two however are in a different format. There are no corresponding Chinese name files or Pinyin name files.

tsmfk.tax and the files in the table have the following format:

1 Int32 for the number of items.
Now comes an array, consisting of Int32's for the position of the name inside this file.
After that, you have all the strings, encoded in UTF-8 (without BOM of course). Each string is terminated with a NUL (\0), including the last string, meaning these files always end with a NUL.
Do note that the order of the two arrays does not necessarily match! I copied over 2300 VTxx files to my device and the second half of the strings came before the first half (they weren't exactly halves) and some items were logically ordered (e.g. ignoring case) instead of binarily, probably because Windows put them there in logical order. I believe the default files' order of the arrays does match though.

Foldername.ini (v1)

Foldername.ini is neither an INI file, nor does it contain only folder names. It is a general menu configuration. Its default content is:

GB300
7
FFFFFF
FF8000 FC
FF8000 PCE
FF8000 SFC
FF8000 MD
FF8000 GB
FF8000 GBC
FF8000 GBA
FF8000 ROMS
FF8000 ROMS
FF8000 ROMS
12 0 3
7 8 9 10 11
20 112 144 208
424 58

The file's content is matched to a Format string to extract the values. Funnily, this file is Windows (CR+LF) by default, even though the Format string is specifically Unix (LF). The encoding is UTF-8 without BOM (the device will not get past the boot logo if a BOM is present).

Let's take a closer look at it:

Default Content	Description
`GB300`	Name of the device. The BIOS is hardcoded to expect this header. Do not change.
`7`	Number of languages. It affects how the language strings are loaded from the images with multiple languages inside, and is also the index of the first TV system setup item, counted starting from 0. So you can hide languages from the language menu if you move the TV System backgrounds to their image files. You better leave this.
`FFFFFF`	Default UI text color (HTML Code: `#FFFFFF`) unless selected (see below). All colors in this file are case-insensitive.
`FF8000 FC`	First folder and its selected color (HTML Code: `#FF8000`)
`FF8000 PCE`	Second folder and its selected color
`FF8000 SFC`	Third folder and its selected color
`FF8000 MD`	Fourth folder and its selected color
`FF8000 GB`	Fifth folder and its selected color
`FF8000 GBC`	Sixth folder and its selected color
`FF8000 GBA`	Seventh folder and its selected color
`FF8000 ROMS`	Eighth folder (see below) and its selected color
`FF8000 ROMS`	Ninth folder (see below) and its selected color
`FF8000 ROMS`	Tenth folder (see below) and its selected color
`12 0 3`	Number of bottom tabs (you better leave this), left tab (starting with 0) and default tab starting from the left tab (starting from 0) – so the selected tab is the sum of the latter two numbers (starting from 0)
`7 8 9 10 11`	Index of the "ROMS", "FAVORITES", "HISTORY", "SEARCH" and "SETTINGS" tabs on the bottom tab bar (counting from 0). See below.
`20 112 144 208`	Position of the thumbnail (X, Y) and its width and height. Note that this does not cause the image to be stretched, so the latter two also affect the dimensions the device expects and loads from thumbnailed files. This means that decreasing the height may make sense (clips off the bottom part of the image) whereas any other change to the last two numbers will glitch the thumbnails unless you recreate all thumbnailed files. The width and height of `appvc.ikb` must be 6 more each.
`424 58`	Dimensions of `sdclt.occ`. As with the thumbnail file above, this changes the dimensions the device expects.
	Trailing line feed

Note that the ROM List files (see the sections above) are bound to the folders in this file. So rdbui.tax, which is used for the FC by default, will always refer to the first folder listed here. So if you swap the order of the folders, you need to swap (or rebuild) these files.

Changing anything in the 7 8 9 10 11 row has a lot of strange side effects: The numbers 7, 8 and 9 each correspond to a file, tsmfk.tax, Favorites.bin and History.bin respectively. The file that corresponds to the first number in this row is populated with the folder given in its corresponding the line above. Example: Say this line starts with 9, meaning tenth folder and History.bin. If you turn on the device, History.bin gets populated with file names from the tenth (last) folder defined in Foldername.ini because the index 9 refers to History.bin. Now it gets inconsistent, because the eighth tab (count from 1) that you just changed (because it's the first number in this line) will look like the History tab now as it has a thumbnail image, but it will still use the tsmfk.tax ROM list and still use the eighth image from ectte.bke. Accessing the tab that originally was the History however will freeze the device because it too will load its original file, History.bin, which has just been populated with data in an unsupported format. Swapping 8 and 9 causes existing Favorites and History lists to be initially swapped, but from then being updated with the correct entries. So it seems that this modification works, so does swapping 10 and 11. Changing Foldername.ini does not affect the order of the bottom tab bar - it's still the same as in the images. tl;dr: You better leave this line. Or better: The entire file except for the colors.

KeyMapInfo.kmp (v1)

The GB300 uses a larger KeyMapInfo.kmp file because it stores 7 key mappings instead of just 6. This makes its file incompatible with the SF2000 key map editor. Another difference to the SF2000 is that this file does not exist by default and is only created once you assign non-standard keys.

After each emulated console's key map (24 bytes), it is repeated instantly (probably for the second player). Then comes the next console.

Consoles are encoded in the following order:

Console/Order	Physical Button Save Order	Available Values per Physical Button
1. FC	`X`, `Y`, `L`, `A`, `B`, `R`	`0x0800`: A, `0x0000`: B, `0x0A00`: FDS Turn Disk, `0x0B00`: FDS Eject/Insert
2. PCE	`X`, `Y`, `L`, `A`, `B`, `R`	`0x0800`: I, `0x0000`: II
3. SFC	`X`, `Y`, `L`, `A`, `B`, `R`	`0x0800`: A, `0x0000`: B, `0x0A00`: X, `0x0B00`: Y, `0x0900`: L, `0x0100`: R
4. MD/SMS	`X`, `Y`, `L`, `A`, `B`, `R`	`0x0800`: A, `0x0000`: B, `0x0A00`: X, `0x0B00`: Y, `0x0100`: C, `0x0900`: Z (SMS: `0x0000`: 1, `0x0100`: 2)
5. GB/GBC	`X`, `Y`, `L`, `A`, `B`, `R`	`0x0800`: A, `0x0000`: B
6. GBA	`L`, `R`, `X`, `A`, `B`, `Y`	`0x0800`: A, `0x0000`: B, `0x0A00`: L, `0x0B00`: R
7. unknown		defaults identical to SFC's defaults

After each button's 16-bit value from the table above comes a 16-bit flag for autofire: 0x0100 (or any odd number) if autofire is active (indicated by a T in the console's key map editor), 0x0000 (or any even number) if not.

Note that not all of the button values you can select in the device's key map editor actually exist on the PCE and GBA. Assigning other values than those above does display a different text, but doesn't usually give any result. Just the Game Boy treats most (but not all) values assigned to the R button as B.

Note that the table above describes the actual behavior, whereas the key map editor is bogus for a lot of reasons:

In the editor's optical representation, the physical R and L buttons are swapped for all emulators but GBA (see below) when you use the console's key map editor. If the button on the left (next to the five menu items where you selected "Joystick") is highlighted, you'll set the button physically labeled R.
To account for this bug, L and R values are swapped for the SFC.
For GBA, the editor's optical representation of the physical L is swapped with X, and R is swapped with Y.
To account for this bug, L and R values are swapped with X and Y values respectively for the GBA.

This means that the bugs cancel each other out when the default key mappings are set, so the default mapping seemingly makes sense. Changing the buttons however will rarely ever do what you expect.

Per-game key mappings do not seem to work.

multicore Key Maps

multicore is affected by the stock GBA's mapping, so it is still the sixth entry in the file, the physical button save order is still L, R, X, A, B, Y and the bugs described above still make the GB300's key map editor worthless.

Here are a few examples:

Core	Emulator	Con- sole	`0800` (A)	`0000` (B)	`0900` (X)	`0100` (Y)	`0A00` (L)	`0B00` (R)	Test ROM
`msx`	blueMSX	CV	L	R	1	2	4	3	Final Test Cartridge
`msx`	blueMSX	SG	L	R					SG-1000 M2 Check Program Proto
`amstradb`	Caprice32	CPC	Joy1	Joy2					Amstrad Diagnostics 1.3
`amstrad`	CrocoDS	Joy	Joy1	Joy2	Key2	Key3			Amstrad Diagnostics 1.3
`amstrad`	CrocoDS	Key	Space	Key1	Key2	Key3			Amstrad Diagnostics 1.3
`amstrad`	CrocoDS	int.	A	B	X	Y	L	R	none
`amstrad`	CrocoDS	BAS	X	Z	é	"			none
`col`	Gearcoleco	CV	R	L	2	1	3	4	Final Test Cartridge
`gg`	Gearsystem	SG	R	L					SG-1000 M2 Check Program Proto
`gg`	Gearsystem	GG	2	1					Gamegear button test
`gba`	gpSP	GBA	A	B	TA	TB	L	R	GBA D-Pad Test
`sega`	Picodrive	MD	C	B	Y	A	X	Z	Contra - Hard Corps
`sega`	Picodrive	SG*	R	L					SG-1000 M2 Check Program Proto
`sega`	Picodrive	SMS	2	1					SMS Test Suite v0.35
`pokem`	PokeMini	PM	A	B	TA			C	Zany Cards (no test ROM available)
`snes`	Snes9x 2005	SFC	A	B	X	Y	L	R	NTF 2.5 Test Cartridge
`snes02`	Snes9x 2002	SFC	A	B	X	Y	L	R	NTF 2.5 Test Cartridge

T indicates autofire. Homebrew test ROMs are linked, official and/or commercial ones are not. Platforms with an asterisk are not officially supported. Only if you are using the default GBA key mapping, the hex numbers above correspond to the physical buttons in brackets.

Notes:

Only officially-assignable button values are listed because the values between 0x0200 and 0x0700 either did nothing or counted as 0x0000, depending on the emulator, assigned value and physical button. Only B, R and X had the chance of counting as 0x0000 whereas the others seemed to always be useless. This was tested with gba, pokem and sega.
pokem: Select is reset.
There is a GG button test ROM on smspower.org, but gg and sega both think it was SMS, so neither the Start button nor the colors work. (Stock also thinks it's SMS, but that's expected because it doesn't even know GG.) You can force gg to GG mode. You can do this with sega too, but that doesn't work (GG support is unofficial on sega anyway).
GearSystem cannot run SMS Test Suite v0.35, v0.29 and probably all other versions of that ROM.
There is an SMS test ROM for the MD controller which does not register the keys properly on gg, sega and stock. This ROM is also notable for looking completely different on all of these three: It's blue on stock, grey on sega and mixed on gg.
The default key order on SMS actually makes sense because that's how the buttons are aligned. Start is Pause.
bluemsx's mapping seems to make less sense than the others emulators' for the same platform.
col: Select is #, Start is *. bluemsx is the other way around.
CrocoDS gives you the option to map buttons yourself (but it cannot save this, nor does it load crocods.opt). The table lists the defaults for joystick and keyboard mode (joystick is the default), the internal name of the keys when you remap them inside CrocoDS and keys it gives in BASIC or the default shell.
Pressing Start plus whatever button you assigned 0x0900 to (default: Y) shows the keyboard in CrocoDS.
On m2k, pressing 0x0A00+0x0B00 is pause.

Sounds (v1)

c2fkec.pgt
dpnet.dll
help.lis
mfsvr.nkf
nyquest.gdb
oldversion.kbe
pagefile.sys
swapfile.sys

All files are completely identical and have the same use as on the SF2000 v1.71. See the SF2000 documentation for more details.

Other Files (v1)

Archive.sys
Favorites.bin
History.bin

Once again, their format and use is identical to the SF2000.

In theory, you can also add ROMs inside the ROMS to Favorites.bin and History.bin (first word = 0x0700). But because the order changes whenever you add a game with a name lexically lower than any of your favorites, this will change the reference, so the GB300 does not add your own games there (I would guess the SF2000 doesn't do that either).

Resources (v2)

Please refer to the SF2000 documentation until further notice. Not everything applies to the GB300 v2, so I will add the correct information here in September.

Foldername.ini (v2)

See here. The first of the two placeholder rows is now used for PCE.

KeyMapInfo.kmp (v2)

After each emulated console's key map (24 bytes), it is repeated instantly (probably for the second player). Then comes the next console.

Consoles are encoded in the following order:

Console/Order	Physical Button Save Order	Available Values per Physical Button
1. FC	`X`, `Y`, `L`, `A`, `B`, `R`	`0x0800`: A, `0x0000`: B, `0x0A00`: FDS Turn Disk, `0x0B00`: FDS Eject/Insert
2. SFC	`X`, `Y`, `L`, `A`, `B`, `R`	`0x0800`: A, `0x0000`: B, `0x0A00`: X, `0x0B00`: Y, `0x0900`: L, `0x0100`: R
3. MD/SMS	`X`, `Y`, `L`, `A`, `B`, `R`	`0x0800`: A, `0x0000`: B, `0x0A00`: X, `0x0B00`: Y, `0x0100`: C, `0x0900`: Z (SMS: `0x0000`: 1, `0x0100`: 2)
4. PCE	`X`, `Y`, `L`, `A`, `B`, `R`	`0x0800`: I, `0x0000`: II
5. GBA	`L`, `R`, `X`, `A`, `B`, `Y`	`0x0800`: A, `0x0000`: B, `0x0A00`: L, `0x0B00`: R
6. FB Alpha	`X`, `Y`, `L`, `A`, `B`, `R`	`0x0800`: A, `0x0000`: B, `0x0A00`: C, `0x0B00`: D

After each button's 16-bit value from the table above comes a 16-bit flag for autofire: 0x0100 (or any odd number) if autofire is active (indicated by a T in the console's key map editor), 0x0000 (or any even number) if not.

Note that not all of the button values you can select in the device's key map editor actually exist on the PCE and GBA. Assigning other values than those above does display a different text, but doesn't usually give any result. Just the Game Boy treats most (but not all) values assigned to the R button as B.

Note that the table above describes the actual behavior, whereas the key map editor is bogus for a lot of reasons:

GB and GBC are hardcoded: L, R, X and Y do nothing, the rest does what they are supposed to do.
In the editor's optical representation, the physical R and L buttons are swapped for all emulators but GBA (see below) when you use the console's key map editor. If the button on the left (next to the five menu items where you selected "Joystick") is highlighted, you'll set the button physically labeled R.
To account for this bug, L and R values are swapped for the SFC.
For GBA, the editor's optical representation of the physical L is swapped with X, and R is swapped with Y.
To account for this bug, L and R values are swapped with X and Y values respectively for the GBA.

This means that the bugs cancel each other out when the default key mappings are set, so the default mapping seemingly makes sense. Changing the buttons however will rarely ever do what you expect.

Per-game key mappings probably won't work, but need research.

List of ROMs

For the FC, MD, GB, GBC, GBA and SFC see vonmillhausen's list. Games that are missing from the GB300 are listed above in this document.

(GB300 v2 only) For Arcade, see games tagged as inrom in madcock's list. Again, games missing from the GB300 are listed above.

Final Knockout does work on the GB300 v1 and v2.

There are no new games on the GB300 for consoles that the SF2000 has. GB300 v1 and v2 have the same selection of GB300 games (see below).

To play your own games, create the folder ROMS on the TF card. You can also use ZIP files to save space, given that they contain a single file. Make sure to create a save subfolder in ROMS to be able to save.

List of PCE Games

The following is a list of all PCE games that ship with the GB300 v1 and v2. The names listed here are the names on No-Intro. Their catalog knows all of the hashes, meaning that the PCE games no strange hacks like many of the other ROMs, especially FC. Thumbnails use only covers here, whereas other consoles use at least some screenshots instead. If you remove everything in brackets (and trailing spaces resulting hereof) from the No-Intro name, you get the name on the GB300, with four exceptions given in non-bold brackets after the No-Intro name.

No-Intro Name	CRC32	No-Intro #	No-Intro Status
21 Emon - Mezase Hotel Ou!! (Japan)	`73614660`	0002	good
1943 Kai (Japan)	`fde08d6d`	0001	verified
Adventure Island (Japan)	`8e71d4f3`	0010	verified
Aero Blasters (USA)	`b03e0b32`	0012	not verified
After Burner II (Japan)	`ca72a828`	0013	verified
Air Zonk (USA)	`933d5bcc`	0014	good
Alien Crush (USA)	`ea488494`	0016	good
All Star Power League (Japan)	`04a85769`	0286	not verified
Andre Panza Kick Boxing (USA)	`a980e0e9`	0264	good
Aoi Blink (Japan)	`08a09b9a`	0018	verified
Appare! Gateball (Japan)	`2b54cba2`	0019	verified
Armed F (Japan)	`20ef87fd`	0020	verified
Artist Tool (Japan)	`5e4fa713`	0021	not verified
Atomic Robo-Kid Special (Japan)	`dd175efd`	0022	verified
Ballistix (USA)	`420fa189`	0025	not verified
Bari Bari Densetsu (Japan)	`c267e25d`	0026	verified
Barunba (Japan)	`4a3df3ca`	0027	verified
Batman (Japan)	`106bb7b2`	0028	good
Battle Lode Runner (Japan)	`59e44f45`	0029	verified
Battle Royale (USA)	`e70b01af`	0030	not verified
Benkei Gaiden (Japan) (Wii Virtual Console)	`c9626a43`	2465	good
Bikkuriman World (Japan)	`2841fd1e`	0034	verified
Blazing Lazers (USA)	`b4a1b0f6`	0036	not verified
Bloody Wolf (USA)	`37baf6bc`	0038	good
Bodycon Quest II (Japan) (Unl)	`ffd92458`	0039	not verified
Bomberman - Users Battle (Japan)	`1489fa51`	0046	not verified
Bomberman '93 - Special Version (Japan)	`02309aa0`	0041	good
Bomberman '93 (USA)	`56171c1c`	0042	not verified
Bomberman '94 (Japan)	`05362516`	0043	verified
Bomberman (USA)	`5f6f3c2a`	0045	not verified
Bonk 3 - Bonk's Big Adventure (USA)	`5a3f76d8`	0047	not verified
Bonk's Adventure (USA)	`599ead9b`	0048	not verified
Bonk's Revenge (USA) (Alt 2)	`14250f9a`	0429	not verified
Bouken Danshaku Don - The Lost Sunheart (Japan)	`8f4d9f94`	0050	good
Boxyboy (USA)	`605be213`	0051	not verified
Bravoman (USA)	`cca08b02`	0052	not verified
Break In (Japan)	`c9d7426a`	0053	verified
Bubblegum Crash! - Knight Sabers 2034 (Japan)	`0d766139`	0054	verified
Bull Fight - Ring no Hasha (Japan)	`5c4d1991`	0055	good
Burning Angels (Japan)	`d233c05a`	0056	good
Busou Keiji - Cyber Cross (Japan)	`d0c250ca`	0057	good
Cadash (USA)	`bb0b3aef`	0059	not verified
Champion Wrestler (Japan)	`9edc0aea`	0060	verified
Champions Forever Boxing (USA)	`15ee889a`	0061	not verified
Chase H.Q. (USA)	`9298254c`	0358	not verified
Chew-Man-Fu (USA)	`8cd13e9a`	0062	good
Chikudenya Toubei - Kubikiri Yakata Yori (Japan)	`cab21b2e`	0064	verified
China Warrior (USA)	`a2ee361d`	0066	verified
Circus Lido (Japan)	`c3212c24`	0068	verified
City Hunter (Japan)	`f91b055f`	0069	good
Columns (Japan)	`99f7a572`	0070	verified
Coryoon - Child of Dragon (Japan)	`b4d29e3b`	0071	good
Cratermaze (USA)	`9033e83a`	0073	not verified
Cross Wiber - Cyber Combat Police (Japan)	`2df97bd0`	0074	good
Cyber-Core (USA) (Cyber Core)	`4cfb6e3e`	0076	not verified
Cyber Dodge (Japan)	`b5326b16`	0077	verified
Cyber Knight (Japan)	`a594fac0`	0078	verified
Daichi-kun Crisis - Do Natural (Japan)	`61a2935f`	0080	verified
Daisenpuu (Japan)	`9107bcc8`	0079	verified
Darius Alpha (Japan) (SG Enhanced)	`b0ba689f`	0081	not verified
Darius Plus (Japan) (SG Enhanced)	`bebfe042`	0082	verified
Darkwing Duck (USA)	`4ac97606`	0083	not verified
Davis Cup Tennis (USA)	`9edab596`	0084	not verified
Dead Moon (USA)	`f5d98b0b`	0086	not verified
Deep Blue (USA)	`16b40b44`	0087	not verified
Detana!! TwinBee (Japan)	`5cf59d80`	0089	verified
Devil's Crush (USA)	`157b4492`	0091	good
Die Hard (Japan)	`1b5b1cb1`	0092	good
Digital Champ (Japan)	`17ba3032`	0093	verified
Don Doko Don! (Japan)	`f42aa73e`	0094	verified
Doraemon - Nobita no Dorabian Night (Japan)	`013a747f`	0096	good
Double Dungeons (USA)	`4a1a8c60`	0098	not verified
Down Load (Japan) (Download)	`85101c20`	0099	verified
Dragon Egg! (Japan)	`442405d5`	0101	verified
Dragon Saber (Japan)	`3219849c`	0102	verified
Dragon Spirit (USA)	`086f148c`	0105	not verified
Dragon's Curse (USA)	`7d2c4b09`	0106	not verified
Dungeon Explorer (USA)	`4ff01515`	0111	verified
Dungeons & Dragons - Order of the Griffon (USA)	`fae0fc60`	0254	not verified
Energy (Japan)	`ca68ff21`	0112	verified
Eternal City - Toshi Tensou Keikaku (Japan)	`b18d102d`	0378	good
F1 Circus '91 (Japan)	`d7cfd70f`	0115	verified
F1 Circus '92 - The Speed of Sound (Japan)	`b268f2a2`	0116	verified
F1 Circus (Japan)	`e14dee08`	0117	verified
F-1 Dream (Japan)	`d50ff730`	0113	good
F-1 Pilot - You're King of Kings (Japan)	`09048174`	0114	verified
F1 Triple Battle (Japan)	`13bf0409`	0119	verified
Falcon (USA)	`0bc0a12b`	0120	not verified
Fantasy Zone (USA)	`e8c3573d`	0122	not verified
Fighting Run (Japan)	`1828d2e5`	0123	verified
Final Blaster (Japan)	`c90971ba`	0124	good
Final Lap Twin (USA)	`26408ea3`	0126	verified
Final Match Tennis (Japan)	`560d2305`	0127	verified
Final Soldier - Special Version (Japan) (En)	`02a578c5`	0129	good
Final Soldier (Japan) (En)	`af2dd2af`	0128	verified
Fire Pro Wrestling - Combination Tag (Japan)	`90ed6575`	0130	verified
Fire Pro Wrestling 2 - 2nd Bout (Japan)	`e88987bb`	0131	verified
Fire Pro Wrestling 3 - Legend Bout (Japan)	`534e8808`	0132	verified
Formation Soccer - Human Cup '90 (Japan)	`85a1e7b6`	0133	verified
Formation Soccer - On J League (Japan)	`7146027c`	0134	verified
Fushigi no Yume no Alice (Japan)	`12c4e6fd`	0135	verified
Gai Flame (Japan)	`95f90dec`	0136	verified
Gaia no Monshou (Japan)	`6fd6827c`	0137	verified
Galaga '88 (Japan)	`1a8393c6`	0138	verified
Galaga '90 (USA)	`2909dec6`	0139	not verified
Ganbare! Golf Boys (Japan)	`27a4d11a`	0140	verified
Gekisha Boy (Japan)	`e8702d51`	0141	good
Genji Tsuushin Agedama (Japan)	`ad450dfc`	0142	verified
Genpei Toumaden (Japan)	`b926c682`	0143	verified
Gokuraku! Chuuka Taisen (Japan)	`e749a22c`	0146	good
Gomola Speed (Japan)	`4bd38f17`	0147	verified
Gradius (Japan)	`0517da65`	0148	verified
Gunboat (USA)	`f370b58e`	0149	not verified
Gunhed - Special Version (Japan)	`57f183ae`	0151	good
Gunhed (Japan)	`a17d4d7e`	0150	verified
Hana Taaka Daka! (Japan)	`ba4d0dd4`	0152	good
Hanii in the Sky (Japan)	`bf3e2cc7`	0153	verified
Hanii on the Road (Japan)	`9897fa86`	0154	verified
Hatris (Japan)	`44e7df53`	0155	verified
Heavy Unit (Japan)	`eb923de5`	0156	good
Hisou Kihei X-SERD (Japan)	`1cab1ee6`	0157	verified
Hit the Ice - VHL - The Official Video Hockey League (USA)	`8b29c3aa`	0159	not verified
Honoo no Toukyuuji - Dodge Danpei (Japan)	`b01ee703`	0160	verified
ImageFight (Japan) (Image Fight)	`a80c565f`	0162	verified
Impossamole (USA)	`e2470f5f`	0163	not verified
J.J. & Jeff (USA)	`e01c5127`	0165	not verified
J.League Greatest Eleven (Japan)	`0ad97b04`	0164	verified
Jack Nicklaus - Championship Golf (Japan)	`ea751e82`	0166	verified
Jackie Chan's Action Kung Fu (USA)	`9d2f6193`	0169	not verified
Jaseiken Necromancer (Japan)	`53109ae6`	0235	verified
Jigoku Meguri (Japan)	`cc7d3eeb`	0170	good
Jinmu Denshou (Japan)	`c150637a`	0171	verified
Juuouki (Japan)	`c8c7d63e`	0173	verified
Kaizou Choujin Shubibinman (Japan)	`a9084d6e`	0175	verified
Kattobi! Takuhai-kun (Japan)	`4f2844b0`	0178	good
Keith Courage in Alpha Zones (USA)	`474d7a72`	0179	good
KickBall (Japan)	`7e3c367b`	0180	verified
Kiki Kaikai (Japan)	`c0cb5add`	0181	good
King of Casino (USA)	`2f2e2240`	0183	not verified
Klax (USA)	`0f1b59b4`	0185	not verified
Knight Rider Special (Japan)	`c614116c`	0186	verified
Kore ga Pro Yakyuu '89 (Japan)	`44f60137`	0187	verified
Kore ga Pro Yakyuu '90 (Japan)	`1772b229`	0188	verified
Kung Fu, The (Japan)	`b552c906`	0189	verified
Kyuukyoku Tiger (Japan)	`09509315`	0192	verified
Lady Sword - Ryakudatsu Sareta 10-nin no Otome (Japan) (Unl)	`c6f764ec`	0193	verified
Legend of Hero Tonma (USA)	`3c131486`	0196	good
Legendary Axe II (USA)	`220ebf91`	0197	not verified
Legendary Axe, The (USA)	`2d211007`	0198	not verified
Lode Runner - Lost Labyrinth (Japan)	`e6ee1468`	0199	verified
Maerchen Maze (Japan)	`a15a1f37`	0200	verified
Magical Chase (USA)	`95cd2979`	0202	not verified
Mahjong Gokuu Special (Japan)	`f8861456`	0206	verified
Mahjong Haouden - Kaiser's Quest (Japan)	`df10c895`	0207	verified
Mahjong Shikaku Retsuden - Mahjong Wars (Japan)	`6c34aaea`	0208	verified
Maison Ikkoku (Japan)	`5c78fee1`	0209	verified
Makai Hakkenden Shada (Japan)	`be62eef5`	0211	verified
Makai Prince Dorabocchan (Japan)	`b101b333`	0212	good
Maniac Pro Wres - Asu e no Tatakai (Japan)	`99f2865c`	0214	verified
Metal Stoker (Japan)	`25a02bee`	0216	good
Mizubaku Daibouken (Japan)	`b2ef558d`	0218	verified
Momotarou Densetsu Gaiden - Dai-1-shuu (Japan)	`f860455c`	0219	verified
Momotarou Densetsu II (Japan)	`d9e1549a`	0220	verified
Momotarou Densetsu Turbo (Japan)	`625221a6`	0221	verified
Momotarou Katsugeki (Japan)	`345f43e9`	0222	verified
Monster Pro Wres (Japan)	`f2e46d25`	0223	good
Morita Shougi PC (Japan)	`2546efe0`	0224	good
Moto Roader II (Japan)	`0b7f6e5f`	0227	verified
Moto Roader (USA)	`e2b0d544`	0226	good
Battle Chopper (Japan) (Mr. Heli no Daibouken)	`2cb92290`	0229	verified
Naxat Open (Japan)	`60ecae22`	0232	verified
Naxat Stadium (Japan)	`20a7d128`	0233	verified
Nazo no Mascarade (Japan)	`0441d85a`	0234	good
Necros no Yousai (Japan)	`fb0fdcfe`	0236	good
Nekketsu Koukou Dodgeball-bu - PC Bangai Hen (Japan)	`65fdb863`	0238	verified
Nekketsu Koukou Dodgeball-bu - PC Soccer Hen (Japan)	`f2285c6d`	0239	good
Neutopia II (USA)	`c4ed4307`	0243	not verified
Neutopia (USA)	`a9a94e1b`	0241	not verified
New Adventure Island (USA)	`756a1802`	0244	verified
NewZealand Story, The (Japan)	`8e4d75a8`	0245	good
NHK Taiga Drama - Taiheiki (Japan)	`a32430d5`	0246	verified
Night Creatures (USA)	`c159761b`	0247	not verified
Niko Niko Pun (Japan)	`82def9ee`	0248	verified
Ninja Ryuukenden (Japan)	`67573bac`	0249	good
Ninja Spirit (USA)	`de8af1c1`	0250	good
Ninja Warriors, The (Japan)	`96e0cd9d`	0251	verified
Obocchama-kun (Japan)	`4d3b0bc9`	0252	verified
Off the Wall (USA) (Proto)	`8621ae02`	0428	good
Operation Wolf (Japan)	`ff898f87`	0253	verified
Ordyne (USA)	`e7bf2a74`	0256	not verified
Out Live (Japan)	`5cdb3f5b`	0257	verified
Out Run (Japan)	`e203f223`	0258	verified
Override (Japan)	`b74ec562`	0259	good
P-47 - The Freedom Fighter (Japan)	`7632db90`	0260	verified
Pachio-kun - Juuban Shoubu (Japan)	`4148fd7c`	0263	verified
Pac-Land (Japan)	`14fad3ba`	0261	verified
Parasol Stars - The Story of Bubble Bobble III (USA)	`e6458212`	0267	good
Parodius Da! - Shinwa kara Owarai e (Japan)	`647718f9`	0268	verified
PC Pachi-Slot - Idol Gambler (Japan) (Unl)	`0aa88f33`	0276	verified
Populous (Japan)	`083c956a`	0277	verified
Power Drift (Japan)	`25e0f6e9`	0279	verified
Power Eleven (Japan)	`3e647d8b`	0281	verified
Power Gate (Japan)	`be8b6e3b`	0282	good
Power Golf (USA)	`ed1d3843`	0284	good
Power League 4 (Japan)	`30cc3563`	0290	verified
Power League 5 (Japan)	`8b61e029`	0291	verified
Power League '93 (Japan)	`7d3e6f33`	0285	good
Power League II (Japan)	`c5fdfa89`	0288	verified
Power League III (Japan)	`8aa4b220`	0289	verified
Power League (Japan)	`69180984`	0287	verified
Power Tennis (Japan)	`8def5aa1`	0293	verified
Pro Tennis - World Court (Japan)	`11a36745`	0294	verified
Pro Yakyuu World Stadium '91 (Japan)	`66b167a9`	0295	verified
Psycho Chaser (Japan)	`03883ee8`	0297	verified
Psychosis (USA)	`6cc10824`	0298	not verified
Puzzle Boy (Japan)	`faa6e187`	0299	good
Puzznic (Japan)	`965c95b3`	0300	verified
Rabio Lepus Special (Japan)	`d8373de6`	0305	verified
Racing Damashii (Japan)	`3e79734c`	0306	verified
Raiden (USA)	`bc59c31e`	0308	not verified
Rastan Saga II (Japan)	`00c38e69`	0309	verified
Rock-On (Japan)	`2fd65312`	0310	verified
R-Type I (Japan)	`cec3d28a`	0303	verified
R-Type II (Japan) (v1.1)	`417b961d`	0304	good
R-Type (USA)	`91ce5156`	0302	good
S.C.I. - Special Criminal Investigation (Japan)	`09a0bfcc`	0341	verified
Sadakichi Seven - Hideyoshi no Ougon (Japan)	`f999356f`	0312	verified
Salamander (Japan)	`faecce20`	0314	verified
Samurai-Ghost (USA)	`77a924b7`	0315	not verified
Sekigahara (Japan)	`2e955051`	0316	verified
Sengoku Mahjong (Japan)	`90e6bf49`	0317	verified
Shanghai (Japan)	`6923d736`	0318	verified
Shinobi (Japan)	`bc655cf3`	0319	verified
Shiryou Sensen - War of the Dead (Japan)	`469a0fdf`	0320	verified
Shockman (USA)	`2774462c`	0321	good
SideArms (USA)	`d1993c9f`	0325	good
Silent Debuggers (USA)	`fa7e5d66`	0327	not verified
Sindibad - Chitei no Daimakyuu (Japan)	`b5c4eebd`	0328	good
Sinistron (USA)	`4f6e2dbd`	0329	good
Skweek (Japan)	`4d539c9f`	0330	verified
Soldier Blade - Special Version (Japan)	`f39f38ed`	0333	good
Soldier Blade (USA)	`4bb68b13`	0332	not verified
Somer Assault (USA)	`8fcaf2e9`	0334	not verified
Son Son II (Japan)	`d7921df2`	0335	verified
Sonic Spike - World Championship Beach Volleyball (USA)	`f74e5eb3`	0336	not verified
Space Harrier (USA)	`43b05eb8`	0339	not verified
Space Invaders - Fukkatsu no Hi (Japan)	`99496db3`	0340	verified
Spin Pair (Japan)	`1c6ff459`	0342	good
Spiral Wave (Japan)	`a5290dd0`	0343	verified
Splatterhouse (USA)	`d00ca74f`	0345	not verified
Stratego (Japan)	`727f4656`	0346	verified
Strip Fighter II (Japan) (Unl)	`d6fc51ce`	0348	good
Super Metal Crusher (Japan)	`56488b36`	0349	good
Super Momotarou Dentetsu II (Japan)	`2bc023fc`	0351	verified
Super Momotarou Dentetsu (Japan) (Alt)	`69d52e7a`	2464	good
Super Star Soldier (USA)	`db29486f`	0353	not verified
Super Volleyball (USA)	`245040b3`	0355	not verified
Susanoou Densetsu (Japan)	`cf73d8fc`	0356	verified
Takeda Shingen (Japan)	`f022be13`	0360	verified
Takin' It to the Hoop (USA)	`e9d51797`	0362	good
TaleSpin (USA)	`bae9cecc`	0363	not verified
Tatsujin (Japan) (Beta)	`c1b26659`	0365	not verified
Tatsunoko Fighter (Japan)	`eeb6dd43`	0366	verified
Ten no Koe Bank (Japan)	`3b3808bd`	0367	verified
Tenseiryuu - Saint Dragon (Japan)	`2e278ccb`	0368	verified
Terra Cresta II - Mandoler no Gyakushuu (Japan)	`1b2d0077`	0369	good
Thunder Blade (Japan)	`ddc3e809`	0370	verified
Tiger Road (USA)	`985d492d`	0371	not verified
Time Cruise II (Japan)	`cfec1d6a`	0373	good
Time Cruise (USA)	`02c39660`	0372	not verified
Timeball (USA)	`5d395019`	0374	not verified
Titan (Japan)	`d20f382f`	0375	verified
Toilet Kids (Japan)	`53b7784b`	0376	good
Tower of Druaga, The (Japan)	`72e00bc4`	0379	good
Toy Shop Boys (Japan)	`97c5ee9a`	0380	verified
Tricky Kick (USA)	`48e6fd34`	0382	not verified
Tsuppari Oozumou - Heisei Ban (Japan)	`61a6e210`	0383	good
Tsuru Teruhito no Jissen Kabushiki Bai Bai Game (Japan)	`f70112e5`	0384	verified
Turrican (USA)	`eb045edf`	0385	not verified
TV Sports Basketball (USA)	`ea54d653`	0387	not verified
TV Sports Football (USA)	`5e25b557`	0389	not verified
TV Sports Hockey (USA)	`97fe5bcf`	0391	not verified
Valkyrie no Densetsu (Japan)	`a3303978`	0403	verified
Veigues - Tactical Gladiator (USA)	`99d14fb7`	0394	not verified
Victory Run (USA)	`85cbd045`	0396	not verified
Vigilante (USA)	`79d49a0d`	0398	verified
Volfied (Japan)	`ad226f30`	0400	verified
Wai Wai Mahjong - Yukai na Janyuu-tachi (Japan)	`a2a0776e`	0402	verified
Wallaby!! - Usagi no Kuni no Kangaroo Race (Japan)	`0112d0c7`	0404	verified
Winning Shot (Japan)	`9b5ebc58`	0405	verified
Wonder Momo (Japan)	`59d07314`	0406	verified
World Circuit (Japan)	`b3eeea2e`	0408	verified
World Class Baseball (USA)	`4186d0c0`	0409	good
World Court Tennis (USA)	`a4457df0`	0410	not verified
World Jockey (Japan)	`a9ab2954`	0411	verified
World Sports Competition (USA)	`4b93f0ac`	0412	not verified
W-Ring - The Double Rings (Japan)	`be990010`	0401	good
Xevious - Fardraut Saga (Japan)	`f8f85eec`	0413	verified
Yo, Bro (USA)	`3ca7db48`	0414	not verified
Youkai Douchuuki (Japan)	`f131b706`	0427	verified
You-You Jinsei (Japan)	`c0905ca9`	0416	verified
Zero4 Champ (Japan) (Alt) (Zero4 Champ V1.5)	`b77f2e2f`	0418	not verified
Zero4 Champ (Japan)	`ee156721`	0417	verified
Zipang (Japan)	`67aab7a1`	0419	good

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images-v2		images-v2
images		images
README.md		README.md

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