One of his most notable roles in "SpongeBob SquarePants" was in Season 3's "The Bully" as Flats the Flounder, a new student at Mrs. Puff's boating school who threatens to beat SpongeBob up.

So Doodle Bob tries to erase SpongeBob as an act of revenge. Flats the Founder is one of the top villains in SpongeBob, even though there seems to be no explanation for how he treats SpongeBob.