Iggy is working on a potion to cure symptoms of age, however it is incomplete, and it accidentally turns Bowser into a teenager.
Tropes:
- Answer Cut: When Morton is told that he didn't give Bowser the aging potion, he wonders who he gave it to instead of Bowser. Cut to an aged up Bowser Jr. looking shocked at his reflection and asking what happened to him.
- "Could Have Avoided This!" Plot: If Larry just told Bowser that things will be okay instead of saying that he has no responsibilities as a kid, then things might have gone a bit smoother.
- Fountain of Youth: Iggy creates a potion that he hopes will reduce the effects of aging. When Bowser falls into it, he becomes a teenager.
- Poor Communication Kills: While Bowser is initially upset about being turned into a teenager, Larry tells him that he can do whatever he wants and not worry about his responsibilities. Unfortunately, Bowser takes this too far and things get chaotic from there.
- Tranquil Fury: After the teenage Bowser throws Kamek's mug into his face and runs off, Kamek asks Larry what he did in this manner.Kamek: What did you say to him, Larry?
- Unwitting Instigator of Doom: Iggy creating the potion in the same room where the other koopalings are playing their game instead of his own lab soon results in Bowser rushing in, tripping over the television's power cable and landing in the potion, transforming him into a teenager.
- Vomit Indiscretion Shot: A drunk Bowser throws up twice during a meeting that Kamek is in charge of. The second time it happens, it ends up on Ludwig's face.
