It was so difficult to pull this Mortal Kombat trick off that most players doubted it was even possible. But this was no simple wives' tale. If you satisfied a very specific set of requirements, you could face off against a green ninja at the bottom of the game's Pit stage. To face Reptile, first you had to be playing on one of the later revisions of the game. Then you had to fight on the Pit stage on one of those rare occasions when some shadowy item is flying in front of the moon. This didn't happen all that often, but when it did, you needed to beat your opponent without getting hit and without touching the block button.