Enter the "Rewards" menu. Enter the appropriate section, highlight one of the following options, then enter the code when prompted to unlock the corresponding item.
Costumes (Heroes): Baseball shirt Drake:
Press Left, Right, Down, Up, Triangle, R1, L1, Square. Note: The game must first be completed in order to switch costumes.
Making a Cutscene: Time's Up:
Press L1, Right, Square, Down, Left, Triangle, R1, Up.
Making a Cutscene: Grave Robbing:
Press Left, R2, Right, Up, L2, Triangle, Square, Down.
Concept Art: Bonus 1:
Press L2, Right, Up, Square, Left, Triangle, R1, Down.
Concept Art: Bonus 2:
Press Square, L1, Right, Left, Down, R2, Triangle, Up.