Pause the game in single player mode. Then, enter the "Sound" option, highlight the "FX Volume" selection, and press L1 + L2.
Select multi-player mode. Then at the track selection screen, press X + Square + Triangle + Circle. If you entered the code correctly, an engine will be displayed at the bottom of the screen.
Select multi-player mode and select a track and car. Then when the countdown that marks the start of the race begins, press Circle + Left.
At the track selection screen, hold L1 + L2 + R1 + R2 until headlights appear in front of the car. If you entered the code correctly, a new symbol will appear on the track.
At the track selection screen, press L1 + R1 + X + Down. If you entered the code correctly, an arrow will appear at the bottom of the screen.
Choose a track and press Select. Then, quickly hold X + Square as the cars enter the tunnel. While continuing to hold those buttons, press Left or Right. If you entered the code correctly, the cars will turn around and enter the tunnel in reverse.
| P1 Always Place First | 801F76F8 0001 |
| Night Racing Mode | 800A6D0C 0001 |
| Upside Down Tracks | 800A6E28 0001 |