Honda S2000:
Defeat the all cars from The Four Devas team at the end of quest mode to
successfully complete the game. The Honda S2000 may be purchased at the car
shop in the next game. Additionally, the Rival 138-141, Type-515, and Type-AP1 cars
will be unlocked. 

Porsche 930:
Unlock the Honda 2000. Defeat the other death cars in quest mode and successfully
complete the game. The Porsche 930 may be purchased at the car shop in the next
game.

Porche 944 (head Boss):
Race and win 200 quick races in a row to unlock the Porche 944.

Display full speed in quest mode:
Press Y at the "Assist Shifting" menu. A sound will confirm correct code entry. The
player and opponent car can reach full speed after a win or lose battle in quest mode.
The top speed attained in a certain quest mode race will be displayed. 

Enable rival pointers in quest mode.:
Press L or R at the "Assist Shifting" menu. A sound will confirm correct code entry. 

Alternate replay view:
Hold L + R and press A to select the "Replay" option at the post-race screen to view
the replay from behind your car. 

Avoid a loss record:
Press Start and return to the main menu if your car is going to lose the race. The
game will not mark your opponent as the winning car. 

4 Devas car(s):
Once you have defeated a 4 Deva, you will be able to purchase his/her car in the
shop.

Secret paint schemes: 

Crimson Demon Skyline (Japanese version)
Defeat every car. Buy car type-R34 (it will be unlocked after completing
the game). Pick the Japanese symbol ten spaces to the right. Type in
dot-1-3-8. A sound will confirm correct code entry.

Flaming RX-7 (Japanese version)
Defeat the Midnight Cinderella. Buy car type-FD and do not change any of
the letters for the license plate. Enter dot-1-3-5 as the license plate
number. A sound will confirm correct code entry.

North American version cars
Defeat every Deva and Devil. If you want one of their secret paint
schemes, enter D at the end of the name. For example, if you want the
Midnight Cinderella's paint, the name would be Type-FDD. Note: This
trick does not work for the NSX's flaming paint scheme.

Striped Supra (Japanese version)
Defeat Exhaust Eve. Buy car type JZA80 and pick the Japanese symbol
that is three spaces to the right. Enter dot-1-3-9 as the license plate
number. A sound will confirm correct code entry.

Free car (Japanese version):
Earn enough money to purchase the desired car. Press Y when selecting a license
plate number to get a random selection. If all numbers turn out to be "7", that car will
be free. Press B for another attempt if those numbers did not appear. Answer "No"
when asked if you want the car to start again. 

Soundtrack:
Start the Dreamcast without a disc to access the audio CD player. Insert the game
disc and play tracks two and above to hear music from the game.