Most major ROM hacks—like Pokémon Unbound and Radical Red —are built using this exact file as a base.
This specific file name refers to a of the Pokémon FireRed ROM (version 1.0) for the Game Boy Advance. 1636 Pokemon Fire Red - U-- Squirrels
Mikey pressed Start.
The "1636" prefix refers to its release number in the global database of Game Boy Advance ROMs. The name comes from the group or individual who originally dumped (digitized) the cartridge. Most major ROM hacks—like Pokémon Unbound and Radical