: Legally, you should dump your own copy of the Pokémon FireRed Version cartridge. Ensure the file name includes "(U)(Squirrels)" to verify it is the v1.0 release.
Depending on your device, expert communities on Reddit and PokeCommunity recommend: mGBA (Highly recommended for stability and speed). Android: MyBoy! or Pizza Boy. iOS: Delta (Now available on the App Store). 2. Patching the ROM 1635 pokemon fire red usquirrelsgba rom install