Mysterion leaves and reports to the local police station the next night to report various crimes - mostly just public order offenses (however, the police are quite impressed, presumably for comedic effect). Cartman tried to find out his identity (a process largely relying on Mysterion 'tripping up' over his own speech), but he fails. Mysterion was first introduced in ' The Coon', when he appeared near Cartman (as the Coon) on the roof of Walgreens. Professor Chaos's wall of Mysterion suspects. However, during Season Fourteen, Mysterion returned in a story arc beginning with ' Coon 2: Hindsight' as a member of Coon and Friends, and in the follow-up ' Mysterion Rises' his identity was revealed to be Kenny McCormick, and he possesses a superpower - his familiar inability to die.
Originally, Trey Parker and Matt Stone intended for Mysterion to be a one-time character and had not planned for his identity to ever be revealed, or even intended for him to be a particular character and intended him, like Eric Cartman's father, only to cause debates among fans.
