What is hasselhoffs secret in spongebob the movie gba?

In "The SpongeBob SquarePants Movie" for Game Boy Advance, Hasselhoff's secret is that he possesses a special ability to help SpongeBob and Patrick on their quest. He can transform into a giant version of himself, allowing him to aid them in overcoming obstacles and challenges. This transformation is a nod to David Hasselhoff's iconic role in the "Baywatch" series, adding a humorous twist to the game's storyline.