The Yellow Avenger is a SpongeBob SquarePants video game released for the Nintendo DS and Playstation Portable.
SpongeBob acquires Mermaid Man's powers when he wears his belt. Unfortunately, SpongeBob puts the Dirty Bubble into a washing machine, which causes him to split into countless dirty bubbles! SpongeBob has to stop villains such as Man Ray, the Sinister Slug, the Jumbo Shrimp, Atomic Flounder, and the Dirty Bubble, using Mermaid Man's powers to save Bikini Bottom.
The story is divided into Acts, each with a different villain trying to wreak havoc on Bikini Bottom. Man Ray wants to flood Goo Lagoon, Sinister Slug's evil plan is to stop the talent show, Jumbo Shrimp, with the help of Plankton, creates a machine to shrink people the size of Plankton on top of the Sea Needle, the Atomic Flounder causes chaos in the Industrial Park, and the Dirty Bubble returns to put the end of the Yellow Avenger with the machine the Jumbo Shrimp used in the third act and plans to hit SpongeBob with more little Dirty Bubbles.