> To enable the following gameplay cheats, pause the game, hold the L Trigger, and enter the following commands that will be followed by the pause screen shaking if you input the code correctly:

10X Multiplier - X, Y, Up, Down
13X Multiplier - A, X, X, Y, Up, Down
Big Head Mode - A, B, Up, Left, A, B, Up, Left
Unlock Everything - B, Right, Up, Down, B, Right, Up, X, Y
Full Special - X, Y, B, Down, Up, Right
Level Select - Y, Right, Up, X, Y, Left, Up, X, Y.
(courtesy: GameFan)

> Collect all thirty tapes in career mode to unlock Officer Dick.
(courtesy: GameFan)