Most old games I got working by trying a different romset. The romset I have is old, and I don't know what it is. It's not Mame. Probably FBA.
AOF3, GAROUP, LASTBLD2, MSLUG3N, PREISLE2, SAMSHO5, SVCPLUS, KOF98N, KOF99, KOF200N, KOF2003, S1945P, and anything else I forgot that had encrypted...