If you want be allowed to play in AES mode you can use this: (patch by IQ_132)
// Game sets itself to MVS & English mode, patch this out
*((unsigned short*)(Neo68KROM + 0xED00E)) = 0x4E71;
*((unsigned short*)(Neo68KROM + 0xED394)) = 0x4E71;
// Fix for AES mode (stop loop that triggers Watchdog)
*((unsigned short*)(Neo68KROM + 0xA2B7E)) = 0x4E71;
it works with MAME, it should work with FBA, but AES menu is like the one of kof2001 original mvs dump => not very "clean" ^^