Press Start to pause game play, then hold L2 and press Circle(3), Square(2), R2, R1, Up, Circle, Square. A sound will confirm correct entry.
All FMV sequences
Hold L1 and press Left, Right, Left, Down, Up, Down, R1, Circle, R2, Square at the main menu. The "Movies" selection will be unlocked at the options screen.
Note: This also unlocks the "Extras" option.
Level Skip
Pause gameplay, hold L2 and press Circle, Left, Circle, Right, Circle, Square, Left, Left, Right, R2.
Giant Gingerbread Man
In the Candy Shop you have to defeat a giant gingerbread man at the end. Shoot him with your trident arrow and a few basic arrows. When about 1/3 of your health is left, go back to the gingerbread neighbor hood and collect health hearts. Then go back and shoot the giant gingerbread man with basic arrows.
