juanpi27 Killer instinct does not work in MAME, I already put the chd and I have the roms of MAME2003 0.78
chanchomann you can't play just any rom in mame/fba yet, once you have the full set of rom you rebuild a working set using the clrmamepro program and the dat file in the respective fba/mame folders on your batocera/recalbox/retropie/etc drive