Beast Boy tells Robin he's not invited to his birthday party, because he called the police on them the previous year for disturbing his sleep, so he holds his own party.
- Book Ends: At the start, Robin's forbidden from attending Beast Boy's party because he called the police to report a noise violation during their last party. In the end, the only way that the other Titans can defeat the Humanoid Abomination party animal Robin is by calling the police, reporting it as a noise violation.
- Humanoid Abomination: Robin ends up hybridizing himself with actual animals in order to become a "party animal", resulting in him becoming a Titan Tower-sized monster with a whole raccoon for a leg, a bear head sticking out of his back, and a leopard for a tail.
- Potty Dance: Raven briefly makes one when she tries to go to the bathroom during Beast Boy's party, only to learn that it's in the section of the Tower that Robin reserved for his own party.
- Something We Forgot: The final scene is Robin asking what happened to Bob Uecker after Robin turned into a Humanoid Abomination, which then shows that Bob was knocked out of the Tower when Robin burst through it and conveniently landed safely in a passing hot air balloon.
- Special Guest: Robin tries to convince the Titans to attend his party instead of Beast Boy's by hiring Bob Uecker to perform, as Cyborg is a huge fan of him.
- Start My Own: Robin decides to celebrate his own birthday on the same day as Beast Boy's, with double the cakes and a Special Guest, to spite Beast Boy after being called a "party pooper" and denied from attending his party.
- Weakened by the Light: The Humanoid Abomination party animal Robin is returned to normal when the police arrive and shine spotlights on him, causing him to shrink and diffuse from the animals he had spliced into himself.
