9999 Damage
Professional
Ah, good idea. This is a new MiSTer setup and is probably missing a bunch of basics.You might be missing the BIOS files ? Try using the update_all.sh script which you can grab via google / github as this has the 'bios-getter' section of the script to grab ALL the bios files. If you have the bios files then perhaps its the ISO/BIN-CUE files you have.
If one game works, they should all work.