Big Head Mode:
     Pause  the game, and press Up, Left, Down, Right, Up, Right, Down
and  Left  to unlock Big Head mode. The controller will vibrate if the
code was entered properly.

Faster Players:
     Pause  the  game,  and press Left, Right, Right, Left, L1, R1, R1
and L1 for faster players. The controller will vibrate if the code was
entered properly.