I noticed that emuchina has a Mortal kombat 4 (ARCADE VERS.) ROM. Is there an emu that actually plays this game or is it just there as a novelty?

Also, if anyone is interested, Killer Instinct 1 and Killer Instinct 2 (ARCADE VERS) are there too, apparently U64Emu plays KI1 and will be supporting KI2 in the future