At any screen, type "hollywood". This track winds through various exterior sets of a film studio.
Super engine
At any screen, type "pioneer". A Pioneer engine with better acceleration in arcade mode and better acceleration and higher top speed in simulation mode will be available for all cars, including the hidden vehicles.
Ford Indigo
At the main menu, type "red racer".
Slippery track
At any screen, type "slip".
Night racing
While any track loads, hold "N" until the race begins.
Bonus vehicles
Enter one of the following codes at the main menu screen: