All seasons
At the Press Start Button screen, press Up, Left, Down, Right, B, A, B, Right, Down. You should hear a sound if done correctly.
All Cars
At the Press Start Button screen, press Up, Down, Up, B, A, Left, B, B, Down.
Year Car
1 Subaru Impreza 555
2 Mitsubishi Lancer EVO 4
3 Toyota Celica GT-Four ST-185
4 Mitsubishi Lancer EVO 3
5 Peugeot 106 Maxi
6 Lancia Delta Integrale
7 Fiat 131 Abarth
8 Peugeot 205 Turbo
9 Renault Alpine A110
10 LANCIA 037 Rally
Two additional bonus cars are unlocked by playing in arcade mode. The Renault Maxi Megane is unlocked after finishing in seventh place or better on the "Easy" difficulty setting. For the Toyota Corolla Tien, highlight the Toyota Corolla on the car selection screen, hold L, then select that car.
Change frame rate (60 per second)
At the Press Start Button screen, press Up, A, Down, Down, Left, Right, B, B, Down to change the frame rate to 60 per second.
Change frame rate (60 per second)
Press Up, A, Down, Down, Left, Right, B, B, Up at the Press Start Button screen to change the frame rate to 30 per second.
Secret Rally track
Finish in first place in every year under 10 Year Championship mode.
Less detailed tracks
At the track or mode selection screen, press Y or R when making a choice.
Control replay camera
During a replay, press A, Y, or X to change the view. Use the D-pad to rotate the camera angle. Press B to return to the normal replay angle. Press Down while in the driver's view to switch to a behind the car view.
Hidden Cone challenge
Choose the arcade mode and begin a game in the Rivera race in either championship or practice mode. Drive as usual until reaching the last turn. Two red construction cones should appear as the turn is approached. Intentionally hit both of the cones. If done correctly, you will hear a sound with each hit. Turn around, and drive your car in the wrong direction. An opening to a hidden section of the track will eventually appear. Enter it to find a hidden section of track that contains many construction cones. The game will give you 29 seconds (separate from the normal race time) to knock down as many cones as possible for 100 points each.