The AetherSX2 PS2 emulator has made it easier now to play nostalgic PS2 games on our Android phones, tablets, and computers. But we’ve seen some people complaining that after downloading the emulator, it’s not playing the game. Either the games are crashing or not starting at all. It’s because of not having the AetherSX2 BIOS, which is important to make the games run smoothly. The BIOS acts as the core system software for the emulator, allowing it to mimic the PlayStation 2 hardware accurately and enabling games to boot and run properly. Without the BIOS, the emulator cannot function correctly.