Toggle Invisibility
     Pause  the  game  during  gameplay  and  press R, L, Right, Left,
Right, Left, Right, Left, Y, X, X, X, X, R, L.

More Time
     Pause  the game during gameplay and press R, L, Up, Up, Up, L, R,
X, X, X, Y.

More Cash
     Go  to  the competition mode menu and press L, R, L, R, Y, X, Up,
Left, Up, R, L, R.

Get House Robots
     Go to the competition mode menu and press R, L, Up, Up, Up, L, R,
Down, Down, Down, X.

Unlock All Arenas
     Go  to  the main menu and press R, L, Down, Down, Down, L, R, Up,
Up, Up, Y.

Toggle See Through Armor
     Pause  the game during gameplay and press R, L, R, Y, Y, Y, Left,
Right, Left, Down, Y.

Toggle AI
     Pause  the  game  during gameplay and press R, L, X, Y, X, Y, Up,
Down, Up, Down, R, L, R.