The narrator notices the Chef and King carrying boxes and acting secretive. Then, so do the Prime Minister and Gardener. The narrator wonders if the Princess knows what the suspicious behaviour is, and finds her in the King and Queen's room putting makeup on. He asks if she's doing something prohibited, and she says no, explaining that she's preparing for a costume party.
The Maid shows up and guesses various fairy tale princesses, but the Princess says she is not going as a princess. The secretive behaviour is revealed to be because everyone's costume is a secret, but the Princess has the narrator guess. He correctly guesses a clown, then asks why it's a secret. The Princess explains that there is a competition.
She goes off to search for a whoopee cushion, but finds the King, also dressed as a clown, causing them both to scream and run. The Princess decides she needs a different costume, but doesn't know what to go as. She then gets an idea— go as "the frog" (it's unknown which one) from The Princess and the Frog.
However, she decides she needs tadpoles from the pond and hides in a bush. The Admiral is on "lookout duty", so the Princess sidetracks him by pretending there is a monster nearby. She succeeds in nabbing a tadpole, but is caught by the Prime Minister, necessitating another costume change. However, she can't think of one, so she sulkily decides to not go to the party.
However, she then sees the Chef's grapes and the General's purple balloons, giving her the idea of using the balloons to dress up as grapes. But the balloons pop. She sulks in her room, while the narrator tries to convince her to go to the party, and then Scruff chases a mouse and ends up stuck in the Princess's crown. This gives her an idea.
At the party, the Queen wears a fruit hat and bananas around her waist, the King is a bedsheet ghost, the Admiral is wearing luau garb, the Prime Minister is dressed as Elvis, the Admiral is a chicken with the Chef riding on him, the Gardener is a tomato, the Maid is a cowgirl, Puss is a strongman, the General is a fairy, and the Princess and Scruff arrive dressed as each other.
The Princess and Scruff are tied for first prize and win cake and a bone respectively.
This episode provides examples of
- Accessory-Wearing Cartoon Animal: At one point, Scruff is dressed in a hat, glasses, and a feather boa. Later, he wears high heels on his front paws, slippers on his back paws, and a necklace, and still later he wears the Princess's crown around his neck.
- Barefoot Cartoon Animal: Puss once wears a onesie and fake moustache but no shoes.
- Big "NO!": The Princess shouts, "NO!" when the Maid tries to guess her costume.
- Buffy Speak: The narrator wonders if The Princess and the Frog is too "princess-y" a story for the Princess to cosplay as, since she doesn't want to dress as one. Then, the Princess describes herself in her frog outfit as "froggy" and calls tadpoles "taddy-poles".
- Cloud Cuckoolander: Exploited. The Princess takes advantage of the fact that the Admiral is a nutcase who believes in all kinds of things by pretending there's a monster to divert his attention.
- Compliment Backfire: When the narrator calls the Princess lovely in her frog costume, she says, "I'm not lovely, I'm froggy!".
- Doomed New Clothes: Moments after making her grape costume, the Princess destroys it by accidentally popping the balloons it was made of.
- "Eureka!" Moment:
- When the Princess sees the grapes and balloons, she thinks of using the balloons to dress up as a bunch of grapes.
- The Princess gets the idea of her and Scruff dressing as each other from seeing him with her crown around his neck.
- Half-Dressed Cartoon Animal: Scruff's costume consists of a crown and skirt, but no shirt.
- Mistaken for Aliens: Downplayed. When the narrator sees the Princess dressed as a bunch of grapes, he thinks she's dressed up as an alien.
- Shout-Out:
- The Maid wonders if the Princess is going to the costume party as Sleeping Beauty, Snow White, or Cinderella.
- The Princess cosplays as one of the frogs from The Princess and the Frog.
- Suspiciously Specific Denial: The Gardener says, "Just pushing my barrow, nothing to see."
