#95076
herbfargus
Member

Either you’re using the wrong romset, missing bios or using the wrong emulator: advancemame uses .106 mame4all and mame-libretro use .037b5
See this post on how to rebuild romsets from newer romsets:

https://github.com/retropie/RetroPie-Setup/wiki/Managing-ROMs

Floob has many posts throughout the forum explaining mame including videos.