Unlock Super Circuit and bonus boarders:
Enter Triangle, X, Square, X, Triangle, Circle as a password for the Super Circuit and Ollie B.

Unlock all tracks and circuits:
Enter Square, X, Triangle, Square, Circle, Circle as a password.

Unlock Circuit option:
Enter X, Circle, X, Triangle, Triangle, Square as a password.

Unlock Super Circuits option:
Enter Square, Triangle, X, Square, Circle, Circle as a password.

Control logo:
Press the D-pad to move the spinning X while the game is loading.