Shrek: Hassle at the Castle is a 2D beat 'em up video game released for Game Boy Advance. It is based on the movie Shrek, and features characters from it. Players progress through the game playing as, Shrek, Princess Fiona, and Shrek's companion, Donkey. They travel through various chapters of the game, that represent different stages of the movie. It is the only game in the series that follows the plot of the first movie. A year later, a sequel was released: Shrek: Reekin' Havoc.