Type these cheats in the main menu:
-----------------------------------
Type kcjones at the main menu to drive with a rainbow
color car and horizon. (3Dfx only)

Type silspd as your name when you recieve a record to
make your car heavier.

Type roadrage at the main menu and when you honk your
car when an opponent is in front of you, your opponent
will crash.

Type mad at the main menu to have cows fly behind you
car instead of dust. (3Dfx only)

Hold h while racing to give your car a short speed
boost (the slot cheat must be enabled).

Type slot at the main menu to enable slot mode in the
Player Car menu (note that you must be in either
Arcade or Wild modes). This will automatically turn
you car for you making you only have to push the accel
button to race.

Type chase at the main menu to make the opponent cars
follow you if you are in front of them. You can make
them drive over jumps, make them crash, etc.

Hold n when the race is loading to drive during the
night. (n/a with 3Dfx)

Type rain at the main menu to race with rain
conditions in the Proving Grounds or Mystic Peaks
track. (n/a with 3Dfx)

Type slip at the main menu to get slippery tracks.

Type pioneer at the main menu to upgrade all the cars
engines. This will give them better handling and
faster speeds.

Type rushhour at the the main menu to get a lot of
traffic on the road.

BONUS TRACK CHEAT
-----------------
Type hollywood at the main menu to obtain the secret
track, Monolithic Studios.

BONUS CAR CHEATS
-----------------
Type bomber at the main menu to obtain the Bomber BFS.

Type fzr2000 at the main menu to obtain the FZR 2000.

Type tombstone at the main menu to obtain a Tombstone
Daytona racing car.

REMOVE INVISABLE WALLS
----------------------
Start the race on either the Mediterraneo or the
Mystic Peaks track with the McLaren F1 in Simulation
Mode. At any time during the race, drive in reverse,
keep your horn blaring and hit any at moveable object
(not a sign) at about 60 MPH. Now the cheat is
enabled. To use the cheat you must drive over 80 MPH
and hit any guard rail, bridge, etc. You will fly off
track.

TILT CHEAT
----------
Select the FZR2000 as your car and drive using manual
transmission. At the beginning of the race speed up to
50-60 MPH. When you reach this speed shift to neutral
for one second then to reverse for one second without
hitting the gas key. Now hold down gas, your...