Finn and Jake help Princess Bubblegum battle a plague.
- Gainax Ending: Finn's sickness and the nanobots merge and form a humanoid figure that proclaims that they watch you while you go number one. Then it stomps off while repeatedly shouting "Beware!". Then the short ends.
- Gone Horribly Right: Using nanobots to make muffins works a little too well when they start turning everything they touch into muffins.
- Good Thing You Can Heal: Princess Bubblegum gets her arm turned into muffins, but since she's made of gum, she simply molds her stump into a new arm.
- Grey Goo: Princess Bubblegum even refers to the scenario by name when her nanobots start turning everything into muffins.
- Mundane Utility: Instead of making muffins the old fashioned way, Princess Bubblegum tries using nanobots to make some.
- Sequel Episode: To "All's Well That Rats Well". Finn is still sick and his sickness is what defeats the nanobots.