So, I have an Idea of A Spongebob Villain Au.
The AU: Spongebob is tired of being called a kid all the time, even when he rescues the bikini bottom from all its threats, being taken left for granted...Being some...Innocent plaything. He had enough, So he betrays the Krusty Krab...stealing the krabby patty secret formula...Working for Plankton...Taking Mr. Krabs down, While Spongebob does this...Sandy and Patrick end up working at the Krusty Krab. Him and Plankton makes Mr. Krab's Business Crumble...cause they got the formula...After that, When Plankton and Spongebob gets popular enough, Spongebob betrays Plankton, Opening his own fast food place, And this makes him the most respected person in the bikini bottom, him and Gary rule the city, Turning everyone he knows into Slaves Plankton, Mr. Krabs, Squidward, Sandy, Mrs. Puff, Larry, Patrick even...EVERYONE they know...so he is the most unstoppable Villain of the bikini bottom, Because he was labelled the ultimate fry cook in the ocean, That was how easy it was to become the villain...the most POWERFUL villain...Even King Neptune won't dare challenge him, listening to Spongebob's Demands. (Should I ask AI to make a villain song on this AU?)