To access challenge mode, enter the password XPERTS.

To unlock all grand prix races, enter the password ZDPEAK.

To unlock all cars, enter the password ALLVID.

Enter the password RUNNER to gain the Cheetah car.

Enter the password RATTLE.

To drive the Panther car, enter the password MYSTER.

To drive the Scorpion car enter the password DESERT.

To race in the Crystal Cup, enter the password GLASSX.

To race in the Diamond Cup, enter the password ROCKYY.

Enter the password as "ALLVID". This code unlocks all of the game's funtions, including four extra vehicles, three additional cup settings, the "Challenge" mode, and the option menu's "Mirror Mode".