To access the cheat menu, go to the setup screen and hold L + R + Z. While still holding them press all four of the C buttons. If done correctly under audio should appear cheats.
To access the codes in the cheat menu simply put the cursor on the code you want to access then enter one of the codes below:
Massive Mass: Hold L and R and press C-Up, C-Down, C-Left, C-Right
Killer Rats: Hold L and R and press Z, Z, Z, Z
New York Cabs: Press R, L, Z, C-Up, C-Down, C-Up
Resurrect In Place: Hold Z and C-Left and press C-Right, then hold Z and C-Right and press C-Left.
Frame Scale: Hold Z and C-Down and press C-Up, then hold Z and C-Up and press C-Down.
Tire Scaling: Hold Z and C-Left and press C-Right, then hold Z and C-Right and press C-Left.
Auto-Abort: Quickly press C-Up four times.
Game Timer: Hold Z + C-Down, press C-Up, then hold Z + C-Up and press C-Down.
Gravity: Hold Z, and press C-Left, C-Up, C-Right, C-Down 3 times.
Car Collisions: Hold L and R, and press C-Left, C-Up, C-Right, C-Down 3 times.
Cone Mines: Hold Z, and tap L and R 4 times.
Car Mines: Tap Z and C-Up, then C-Right, C-Down, C-Left 6 times.
Track Orientation: Hold L and R, and press C-Up, C-Right, C-Down, C-Left 4 times.
Super Speed: Hold L and R and press C-Up, C-Down, C-Left, C-Right.
Inside-Out Car: Hold C-Right and C-Down, and press L, R, Z.
Damage: Press R, C-Down, L, 2 times.
Invincibility: Press L, C-Up, R two times.
Invisible Car: Hold L and R, and press C-Up, C-Down 5 times.
Invisible Track: Hold L and R, and press C-Down, C-Up 5 times.
Brakes: Hold C-Up and C-Right, and press Z 3 times.
Super Tires: Hold L and R, and press C-Up, C-Right, C-Down, C-Left 2 times.
Suicide Mode: Hold Z, and press C-Down, C-Left, C-Up, C-Right 2 times.
Do the Dew!: Press L, R, and C-Down, then L, R, and C-Left, then L, R, and C-Up, then L, R, and C-Right 2 times, then press Z.
Levitation: Hold L, R, and Z, and hit C-Up 4 times.
Fog Color: Hold Z, and press C-Left, C-Up, C-Right, and C-Down 3 times.
By collecting hidden keys, you activate Rush 2's secret cars for each track. Every four keys you collect, you will activate one car. The vehicles include:
Taxi
Hot Rod
Formula 1
Prototype: You need all 12 keys to unlock the Prototype.
Mountain Dew Racer: Collect all four Mountain Dew cans and you'll
unlock the Mountain Dew Racer.
To get the Rocket Car, place first overall in the Circuit Mode. In addition to the car, you will also find a secret track, letting you drive through Midway's gaming studios.