Tweek Tweak is a student at South Park Elementary. He drinks lots of coffee, which causes paranoia and jittery muscle spasms. He made his first appearance in the Season Two episode, "Gnomes", where it focused around him and The Boys doing a class project together.
After being confronted by two agents for being responsible for the death of Kenny McCormick, Stan Marsh, Kyle Broflovski, Eric Cartman, and Kenny McCormick must face different versions of themselves
