All Cars Colors
At the Title screen, press up, up, left, right, right, left, down, down.
At the Title Screen, press Right, Down, Right, B.
All Screenshots At The Drive-In
At the Title Screen enter the following, press Left, Down, Right, A.
All Levels And 90 Bolts
At the Title screen press Up, Up, Down, Down, Left, Right, Left, Right, B, A.
Unlock Radiator Cap Secret Circut
Tt the "press start" screen, press Left, Left, Right, Right, B, B, A.