"Casa Bonita," "Imaginationland," and "Fishsticks" are among the best, funniest, and most essential episodes of South Park.

Stan and Butters are stuck in Imaginationland and must fight for their lives against an army of imaginary evil forces; Kyle and Cartman are still arguing in the Pentagon.

However, Kyle says Cartman can come if for whatever reason Butters can't attend, prompting Cartman to craft one of his ...