Optional but recommended: saturn_bios.bin (a combined/regional variant that some cores accept).

By default, the Saturn BIOS is region-locked. A Japanese BIOS will not boot a US game (unless you use a region patcher or an Action Replay cart). To solve this, the community created (aka "Fake BIOS" or "Pseudo Saturn BIOS"). This is a patched BIOS that:

The Sega Saturn remains one of the most notoriously difficult consoles to emulate due to its complex dual-CPU architecture. Within the RetroArch ecosystem , success hinges entirely on the proper implementation of BIOS files

8.5/10