Enter the "Options" menu from the "Game Select" screen, then enter one of the following codes:

All cars and cups

Enter "ALLVID" as a password.

Cheetah car

Enter "RUNNER" as a password.

Cobra car

Enter "RATTLE" as a password.

Panther car

Enter "MYSTER" as a password.

Scorpion car

Enter "DESERT" as a password.

Master Modus

Enter "XPERTS" as a password for all bonus cups and mirror mode.

Unlock Challenge mode

Enter "MASTER" as a password.

Unlock Crystal Cup in Grand Prix mode

Enter "GLASSX" as a password.

Unlock Diamond Cup in Grand Prix mode

Enter "ROCKYY" as a password.

Unlock Zenith Cup in Grand Prix mode

Enter "ZDPEAK" as a password.