Use a ROM manager like or ROMVault to ensure your Neo Geo game ROMs are compatible with your MAME set.
: Modern neogeo.zip sets often already include several versions of UniBIOS (e.g., uni-bios_4_0.rom ). mame neogeo bios
should match the version of the MAME executable you are using. petrockblock Managing Neo Geo Settings Use a ROM manager like or ROMVault to