Sweet Tooth:
Enter the following as a password:
Left Left Left Right Right
Goto the "vehicle selection" screen and Sweet Tooth will now be available.

Minion:
Enter the following as a password:
Right Right Right Left Left
Goto the "vehicle selection" screen and Minion will now be available.

Goto the Last Level (Calypso's Blimp) w/ Outlaw:
Left X L1 Up Start

MOVES:
Freeze Missile: During battle press LEFT,RIGHT,UP
High Jump: During battle press UP,UP,LEFT
Rear Fire: During battle press LEFT,RIGHT,DOWN
Invisibility for 3 sec.: During battle press UP,DOWN,LEFT,RIGHT

WAREHOUSE CODE:
To play the secret Warehouse Level, enter UP UP UP LEFT LEFT as a password. Go to Deathmatch, pick any level, and then cars for each player. It will then load the warehouse level that you see in the intro.

MEMORY CARD:
To activate the memory card, enter "start" 5 times at the password section. Set all your settings how you like them and begin a game. Just before the game begins you will be prompted to save.

INFINITE SPECIALS:
Enter L1, L1, R1, R1, R1 as a password. You will then return to the main menu. Now, begin a game and then die. When you're revived, you will have an unlimited amount of your character's special weapon.

VEHICLES:
Play as Minion in Tournament only: Up, Start, Down, L1, Square
Play as Sweettooth in Tournament only: O, O, L1, L1, Start

Unlimited Ammunition:
Enter Trinagle, Circle, Up, Right, Down as a password.

God Mode:
Enter L1, Square, X, R1, Start as a password. Note: This code should not be used while the "Activate Memory Card" code is enabled.

Massive Force:
Enter Triangle, Circle, Down, Left, Up as a password.

Giant Ricochet Bomb:
Enter Left, Right, Left, Right, Up as a password.

Smart Seekers:
Enter Triangle, Left, Down, Right, Up as a password. Any missiles that track their targets will be enhanced.

Freeze Missile:
Enter Triangle, Up, Circle, Right, Start as a password to add 99 freeze missiles to the inventory. Look like power missiles.

CPU Cars Ignore Health Power-Ups:
Enter Down, L1, Down, Start, Triangle as a password. The CPU controlled cars will not use helath power-ups when low.

Icy Levels:
Enter Up, Up, X, X, Up as a password. Level will be slippery levels.

Solo Deathmatch:
Enter X, Circle, Circle, Circle, Circle as a password.

Warehouse Level:
Enter Square, Square, Square, Left, Left as a password. Choose Deathmatch game.

Demo Level:
Enter Up, Up, Up, Left, Left as a password. Choose Deathmatch game. This level is just like what you see at the main menu.

Club Kid's House Level:
Enter Left, Left, Left, Square, Square as a password. Choose Deathmatch game.

Xtra Weapons and Health:
When you have fallen to the bottom of the blimp destroy the boxes on the ground. Inside the destroyed boxes you will find health and weapons.

Find a Hidden Song:
Put the game disc into a regular cd player and play track 2. You will hear an extra song. Not really a cheat but kind of fun