Well, there's this fighting game that all the characters are chinese demon dolls or something, I think the name is Reikai Doushi, I remember playing this game a few years ago in MAME and it didn't had sound support back then, but it was really fun. Other obscure/creepy/weird fighting games that I would recommend too are Survival Arts and Tatoo Assassins, I made the movelists for these games for the MAMEPlus! command.dat a few years ago.