Additional camera views
Pause the game during a race and press Left(5), Right (5). Then, resume the race and zoom the camera to access two more views. Note: Press Up(5), Down (5) in the Japanese version of the game.
Race only during the day
At the track selection screen, hold L1 + L2 and press X.
Race only in the evening
At the track selection screen, hold L1 + L2 + R1 + R2 and press X.
Race only at night
At the track selection screen, hold R1 + R2 and press X.
Time trial mode
On the track selection screen, hold Select.
Overhead replay view
During the replay, press Circle + Triangle + Square + X.
At the car selection screen, hold R1 + R2 + L1 + L2 + Select + Down + Triangle. Then, all cars in the game will be selectable. Normally, the cars are unlocked as followed:
Finish in first place on all three tracks with the settings on normal enemy level and orthodox race style. Four additional cars (two different cards with automatic and manual transmission versions) will be available in the car selection screen: Red #1 (automatic), Blue #11 (manual), Yellow #2 (automatic), Green #12 (manual).
Racer X's car
Finish in first place on all three tracks with the settings on normal enemy level and endurance race style. Racer X's yellow #9 car will be available in the car selection screen. The light yellow car has an automatic transmission. The dark yellow car has a manual transmission.
Enable the "Extra cars" and "Racer X's car" codes. Finish the first trace in first place using Racer X's #9 car in Time trial mode. A red Demon car with a automatic transmission, and a black Demon car with a manual transmission will be available in the car selection screen. Note: These cars are called Ogre cars in the Japanese version of the game.
Race on the medium or hard track and go through the tunnel. Look on the left for a small passage with a wall. To break through the wall, go over 190 mph, bump the statues on the left out of the way, then use the saws to crash through the wall. Drive straight ahead to find the white GSX car. It has A++ ratings for auto and manual.