A circus arrives to Shuggazoom, much to Otto's delight, and the mysterious ringmaster seems to have an interest on the monkeys to join his circus.
This episode provides examples of:
- Brainwashed and Crazy: The circus becomes this at the beginning of the episode when their train spaceship is approached by the Citadel of Bone, which corrupted the circus staff with a toxic ooze.
- Blackmail: The ringmaster forced the captured monkeys to perform in his circus by holding Chiro hostage inside his hat.
- Circus of Fear: The circus performers become mutated into monsters by the Skeleton King's ooze.
- Clownification: The corrupted ringmaster tries to turn everyone in Shoogazoom, including Chiro into clowns.
- Distracted by the Sexy: Sparks and Otto get captured by the brainwashed Jungle Girl, who enchants them with her seductive dance.
- Face Your Fears: Otto tried to convince Chiro to do this about his fear of clowns.
- Human Cannonball: Sparks's forced act was this, and he almost hits the ringmaster.
- Knife-Throwing Act: Nova is forced to juggle with knives and Gibson.
- Meaningful Name: This episode is named "Circus of Ooze", which references the circus and its performers being corrupted by a toxic ooze.
- Monster Clown: The circus's clowns become this while controlled by the toxic ooze.
- Power Floats: Antauri's forced circus act was to levitate himself and a elephant.
- Why Did It Have to Be Snakes?: During this episode, Chiro was shown to have a fear of clowns and even asked this question with "clowns".