Giant Mutant Octopus

The Giant Mutant Octopus is a monster in Teen Titans Go! who appeared in Dude Relax.

Bio
The Monster attacked Jump City in the episode Dude Relax. Starfire, Raven, and Cyborg confront and battle it in the heart of the city. However, they are not victorious, and fail. They frantically call Robin for back-up, but he chooses not to answer.

Trivia

 * The Giant Mutant Octopus is the first villain to successfully defeat the Teen Titans.