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Insert a cartridge to switch on
Game Boy Advance BIOS
None is needed: games start as the BIOS would leave them. With one, the console starts in it as the real one does. The BIOS is Nintendo's and still under copyright, so none is included: choose or drop your own. It stays in this browser and is never sent anywhere.
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GBA BIOS Optional
Starts the Game Boy Advance. Exactly 16,384 bytes. Without it, software interrupts are handled here instead.
Often named
gba_bios.bin,bios.binorgba_bios.bin.gz
Keep a dump of a BIOS you own. It is not bundled here.
Release to load the BIOS
Drop a .gba or .zip cartridge image here
In this zip:
Free games:
Release to insert
Keyboard: arrow keys for the D-pad, X for A, Z for B, A for L, S for R, Enter for Start and Shift for Select. Hold Tab or Space to fast-forward. Gamepads work as soon as you press a button: the bottom and left face buttons are B, the right and top ones A, the shoulders are L and R, and the stick clicks fast-forward.
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