In short, whether you are a command-line purist using Mednafen or a user of a graphical frontend like RetroArch or Batocera, these two BIOS files are the keys to Saturn emulation.
: If you play a multi-disc Japanese game or a regional exclusive hack and receive a regional error screen, double-check that your emulation core settings are set to "Auto-Detect" or explicitly set to the corresponding region matching your active BIOS. Share public link sega-101.bin mpr-17933.bin
These include mpr-18811-mx.ic1 , which is required for The King of Fighters '95 ( 255113ba943c92a54facd25a10fd780c ), and mpr-19367-mx.ic1 , required for Ultraman: Hikari no Kyojin Densetsu ( 1cd19988d1d72a3e7caa0b73234c96b4 ). Batocera also lists a saturn_bios.bin file as an alternative or complementary BIOS. However, for the vast majority of Saturn games, the primary sega_101.bin and mpr-17933.bin files are all that is needed. In short, whether you are a command-line purist