Mednafen Bios Official

: This often happens with the Sega Saturn core if the carttype is set incorrectly or if the BIOS version is incompatible with the specific game region.

For Saturn (multiple BIOS files):

Without the correct BIOS files, the emulator will typically crash or display a "file not found" error upon launching a game. This guide covers everything you need to know about locating, naming, and installing your Mednafen BIOS collection. Why Mednafen Requires BIOS Files mednafen bios

Mednafen does not emulate this firmware via high-level emulation (HLE). Instead, it requires a of the original BIOS. Why? : This often happens with the Sega Saturn