Teen Titans Go!: Season 1, Episode 12 - ProjectFreeTV

1 - 12: Gorilla

Beast Boy has turned into a loud, obnoxious gorilla and refuses to change back, driving Robin crazy. Gorilla Beast Boy takes over the leadership of the Titans, leading to chaos, so Cyborg teaches Robin how to become an alpha male so he can reclaim his role as leader of the Teen Titans.