Rrarrg is a giant blue and light purple monster who appears in the episode "The Monster Who Came to Bikini Bottom" and the short "Things to Do When Encountering a Legendary Creature" and the game Legends of Bikini Bottom (Online game).


Despite his scary appearance, he is quite friendly. Rrarrg's name originates from the only noise he makes. Rrarrg has a light purple backside, lavender arms, and legs, along with a tan belly. Rrarrg also has barnacles growing on his back, chap dark purple lips and chipped teeth.


Patrick accidentally opened a toxic waste can which poured radioactive waste on a group of purple barnacles which caused them to fuse together to become a giant monster.


"The Monster Who Came to Bikini Bottom"

Rrarrg appears as the main antagonist of the episode.

"Things to Do When Encountering Legendary Creatures"

He appears at the end of the short. He appears as the monster at the end. SpongeBob and Patrick run away from him, thinking he is mean. He then sheds a tear because he is lonely.

Legends of Bikini Bottom (Online game)

Sleepy Time 052
I can turn into a skyscraper!
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