Not all emulators require BIOS RetroPie has published a chart showing all the systems that require a BIOS to function properly. So, do you need to add BIOS to RetroPie? You only have to add BIOS to RetroPie if the emulator you have installed requires BIOS to work.
During the process, you might be wondering if it is necessary to add BIOS on RetroPie. When you install an emulator on RetroPie, you might be prompted to add BIOS files before you can start gaming. BIOS is an acronym for Basic Input/Output System, and these files play an important role in operating emulators of retro video games.
