You likely have a ROM from a different MAME version. Seek a "0.139u1" specific ROM.
(KoF) series. This specific version is based on a 2010 MAME core, offering a "sweet spot" between game compatibility and hardware performance for modern mobile devices. Google Play Performance and Compatibility The KoF Experience : Most titles in the series (from Mame4droid 0.139u1 Roms Kof