Gymblonski S21E21 - Gymblonski 2016
Rigby's high school nemesis returns and tries to stop him from graduating from high school by making sure he fails gym class.
- Released: 2016-03-19
- Runtime: 50 minutes
- Genre:
- Stars: J.G. Quintel, William Salyers, Mark Hamill, Sam Marin
- Director: Calvin Wong