I think this whole episode was parody of The Watchmen and Spiderman 3 which is awesome. The Coon wants to make sure that his hometown is safe and he will be the only hero in South Park, until another superhero who wears a cape and underwear outside his pants name Mysterion, which makes The Coon angry. Then Butters A.K.A Professor Chaos and his sidekick general Disarray came and attack The Coon but The Coon wants to help Professor Chaos to take down Mysterion, too. Then there was a one on one fight with Professor Chaos and Mysterion on the top of the building where all the Town people thought Mysterion where dead for sure.
It come out of the dramatic/suspense conclusion that someone in Mr.Garrison class is Mysterion. But who is this Mysterion: Stan, Kenny, Clyde or Craig maybe? My guess would be Kenny.
9.8 out of 10.