While playing a game, press Down, Right, Down, Right, A, X, A.

While playing a game, press A, Right, A, Right, Up, B, A.

Press the start button to pause the game, then press and hold down the Y button and press the X button.

In championship mode, if you successfully finish Class A (beat Driver X at least 3 times) Driver X will ask you to race with him. You can use his car if you win the match, and you will pass to Class S. In this class, all enemies are the same as Class A except Driver X.

While playing a game, press Down, Up, Down, Up, A, X, A.

When selecting tracks go to the option screen. then turn weather to sun, time to day, mirror on, nitro on, checkpoint on and the other two off. You will get infinite busters as well. If this doesn't work, enter it after the code for all cars and tracks. So far I know it's for arcade mode only.

While playing a game, press B, Right, B, Right, Up, B, Up.

Infinite Cash 89BB8EA500000010
Infinite Points DCB0807A00000100