PS1, PS2, Sega CD, Saturn, Dreamcast, Neo Geo CD, PC-FX, PC Engine CD, Game Boy Advance, and more.
This is one of the most important points about emulation. BIOS files are the copyrighted property of the original console manufacturers. Full.Bios.Retrobat.7.0.0-MS. 7z.001
on your controller (or Space on the keyboard) to open the Main Menu. Game Settings Missing BIOS PS1, PS2, Sega CD, Saturn, Dreamcast, Neo Geo
Copy the entire contents of your extracted pack and paste them directly into C:\RetroBat\bios\ . on your controller (or Space on the keyboard)
Alternatively, you can open the bios folder within your RetroBat installation directory and manually copy over the required files. The exact location can vary by system, so you may need to consult the specific page for a console on the RetroBat Wiki for precise instructions.
Right-click on the first file: Full.Bios.Retrobat.7.0.0-MS.7z.001 . Select 7-Zip > Extract to "Full.Bios.Retrobat.7.0.0-MS" .