The "Reptile" legend is an urban legend revolving around the 1992 fighting game Mortal Kombat.
Description
Reptile the green ninja is a mainstay in the Mortal Kombat series, always appearing as a playable character. However, this didn't always seem to be the case. When the original game was released, Reptile was not part of the default roster, but that didn't stop him from appearing before matches occasionally and say, "Look to La Lona". Due to his resemblance to Scorpion and Sub-Zero, it was believed that he was an unlockable character.
According to the rumor, players could fight Reptile by playing on the Pit stage. If the player saw a ghostly shadow fly over the moon during the match, they must then play two perfect rounds without blocking and perform a fatality. If done correctly, Reptile would allegedly drop down from the sky and start a fight with him. As it turns out, this rumor is 100% true, although it only works on console versions and certain versions of the arcade game. Other versions of the arcade game don't feature Reptile.