1636 - Pokemon - Fire Red -u--squirrels-.gba

You select this "squirrels" .gba file as your Base ROM and the mod file as your Patch .

Many popular fan-made games, such as Pokémon Radical Red and Pokémon Unbound, require this exact file to function. Hack creators design their patch files (like .ups or .bps ) to look for the specific data offsets found in the "squirrels" version. 1636 - Pokemon Fire Red -u--squirrels-.gba