The very last author's note/chapter of the story. That is all.
Fred Rechid writing the article for the newspaper and having the courage to do so. Or maybe the mere fact that he's immune to Mary Sue.
In Chapter 14, Plankton acting resistant to C'ren and insisting that Karen, and not C'ren, is the only woman he will ever love, even if Karen is technically a computer. C'ren succeeded with her plan, however, by telling him that she will steal the Krabby Patty formula for him. Nevertheless, that short scene was still a Crowning Moment of Awesome for Plankton.
Mr. Krabs, when he wrote on a note, which he hid under his mattress (the real location of the Krabby Patty Formula, according to Squidward), that he memorized the Krabby Patty formula. That would actually make an awesome plot twist in a real SpongeBob SquarePants episode.