Hidden Command:
On the title screen, enter Circle, X, Triangle, Square, Circle, X, Triangle, Square, Circle, X, Triangle, Square.

Drag Racing Course:
On the Indy 500 mode screen, highlight 'Qualify' & Hold L1 + L2 + R1 + R2 + Start.
For 2-Player mode, enter the same codes at the Handicap screen.

Change Viewpoint:
During replay, hold Select & press any of the following buttons to get a different view - L1, L2, R1, R2, Triangle, Square, X.