Playing games¶

Running cartridges¶

To play a Game Boy, Game Boy Color, or Game Boy Advance game, insert the game cartridge and select Run Cartridge from the Main Menu.

Press Home to enter the in-game menu, where you can reset the game or return to the Main Menu. Make sure to save your progress in the game before exiting!

Loading ROMs¶

You can also optionally use a microSD card to load homebrew game ROMs. First, format your microSD card with FAT32 (not exFAT), and insert it into the microSD slot while the device is off.

Then, turn on your Game Bub and select Load ROM from the Main Menu. Use the D-Pad to browse for the game you want to play, and press Confirm to load it.

Custom BIOS files¶

The original Game Boy, Game Boy Color, and Game Boy Advance BIOS files are copyrighted by Nintendo and cannot be legally redistributed.

Instead, the Game Bub's built-in cores ship with free, open-source BIOS replacements (GB and GBC derived from SameBoy, GBA derived from Cult-of-GBA/BIOS).

In addition to not showing the classic system boot screen, these replacement BIOSes have other limitations:

• GBC: does not support Game Boy compatibility mode palette selection
• GBA: does not support the "multi-boot" feature
• GBA: incompatibilities cause bugs in certain games

While the original files cannot be distributed with Game Bub, you can supply them yourself via the microSD card.

Create a directory called system on the root of the microSD card, and add the original BIOS files there.