Adding BIOS files
Some emulators require BIOS files to work correctly.
Location
As a general rule, BIOS files must be copied to the \bios
subfolder of the Retrobat folder:

Missing BIOS check
RetroBat has a "missing bios check" function available from the GAME SETTINGS in the MAIN MENU:

The missing BIOS appear with a broken chain icon. The ones where the md5 hash is not listed by Retrobat will appear with a icon, however the latter still can work.

BIOS files are copyrighted and are therefore not included with Retrobat.
The team can not legally distribute them, so you will need to dump them from the original hardware.
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