On a rainy day, the Jammbonians take turns adding onto a story about a "monster of boredom" who doesn't want a circus built near him since it's not boring.
This episode contains the following tropes:
- Argument of Contradictions: Bello and Mina have one, with Bello repeating that he thinks reading is boring and Mina saying she doesn't think is boring.
- Backing into Danger: Near the end of the episode, Bello and Mina walk backwards into each other as they get surrounded by boredom zombies.
- Bifauxnen: Mina looks rather adorable in her male ringmaster outfit.
- Bread, Eggs, Breaded Eggs: Mina wants to read books about inventors, while Rita wants to read books about princesses. Goomo suggests reading books about princess inventors.
- Expressive Hair: The mime makeup on Ongo's hair changes to match his emotions.
- Halloween Episode: It's advertised as one and focuses on a monster story.
- I'm Your Biggest Fan: The monster of boredom, despite not liking fun stuff, says this of Rita the ballerina.
- Michael Jackson's Thriller Parody: At one point, the zombies of boredom do a synchronized dance a la "Thriller".
- Our Zombies Are Different: They're boredom zombies that constantly say "I'm bored".
- Rain, Rain, Go Away: The episode's plot is started by everyone being bored when it rains outside. They curb the boredom by telling their "monster of boredom" story.
- The X of Y: "Monster of Boredom".
