- His habitat used to belong to Alex.
- "Joey", is the name given to a marsupial cub.
- The penguin that annoys him more is Rico as it is revealed in Kanga Management.
- In The Terror of Madagascar he says he hates having warm feelings inside after he saw Mort playing with the baby Fossa.
- In Over Phil he plays basketball with Bada and Bing with a beach ball in his habitat.
- In Skorca! he offers to catch the skorca for a fee. He beat up all of the humans who were holding the skorca's ropes and fights the penguins for the right to the Orca.
- He does not seem to hate Marlene, as they were standing together in The Terror Of Madagascar
- He states that he has a hungry heart in Kanga Management.
- He doesn't like sharing.
- He and Leonard get along as they both dislike the Penguins.
- He doesn't like anyone touching his beach ball.
- He doesn't like others in his habitat.
- He also does not like stereotyping as he pounded Julien for his insulting imitation of a kangaroo in Zoo Tube
- Blooper: Despite being constantly referred to as male, Joey has a pouch - but only female Kangaroos have pouches. This is either a huge fail on the part of the animators, or a little bit of genius with Joey being angry about being mistaken for a male.
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