He has only succeeded once, in The SpongeBob SquarePants Movie (2004). He angered King Neptune so he would freeze Mr. Krabs, sent SpongeBob off on a quest so he could get the formula and make the Chum Bucket popular, and gave everybody in Bikini Bottom a special helmet that made them his slaves. Eventually, though, SpongeBob came back and defeated him, and he went to jail.
- Plankton has a computer wife named Karen.
- The Bugs and Daffy's Adventures team may face off with Plantkon several times, including Bugs and Daffy's Adventures of The SpongeBob SquarePants Movie and Bugs and Daffy's Adventures of Fantasmic!
- Plankton will become Twilight's enemy in Twilight's Adventures of The SpongeBob SquarePants Movie.