Shrek: Hassle at the Castle is a GameBoy Advance action-adventure game based on the Oscar-winning movie Shrek. In the game, you travel through various stages completing tasks that follow the plot of the movie. As you progress, you'll gain control of not only Shrek , but also Donkey and Princess Fiona. Each character has unique strengths and weaknesses, so you'll need to switch between them to succeed. Additionally, the game features a multiplayer fighting mode where you can battle with friends using a single game pack.
The gameplay is divided into three main characters: Shrek , Donkey, and Princess Fiona. Each character has its own abilities and weaknesses, which must be used strategically to overcome obstacles and enemies. The game's stages are designed to reflect the movie's storyline, with levels inspired by iconic locations like the swamp and the castle.