Before the events of The Mutation Situation, Jason was a human boy living in New York City. Concurrent to the events of that episode (but not revealed until Meet Mondo Gecko), he was skateboarding a half-pipe on his building rooftop when he was hit by one of the many canisters of mutagen the turtles accidentally dropped from the sky. He had last touched his pet leopard gecko Lars, and thus became a mutant gecko himself. He was rejected by his parents and kicked out, becoming homeless. Jason was taken in as an errand boy by the criminal Xever Montes, who was called "Mr. X" by his underlings. While employed by Xever, Jason was exploited into committing petty crimes including theft. Even so, Jason still enjoyed certain hobbies, including skateboarding as well as performing in the heavy metal