All Cars and Tracks
     During gameplay, press B, Right, B, Right, Up, B, Up.

Infinite Nitros
     During gameplay, press Down, Up, Down, Up, A, X, A.

Skip Current Class
     During gameplay, press Down, Right, Down, Right, A, X, A.

Extra Money
     During gameplay, press A, Right, A, Right, Up, B, A.

Infinite Money
     During gameplay, press B, A, B, B, A, Down, Right, Left.

Full Pause Screen
     Pause gameplay and press X + Y.

Play as Driver X
     At the Main screen, press A, X, Right, Left, X, A.