Secret Characters:

Minion: At the character selection screen, press L1, Up, Down, Left.
Sweet tooth: At the character selection screen, press Up, L1, Triangle, Right.

Secret Stages:

Swamp (From Jet Moto): At the 2 player vs. stage selection screen, press Up, Down, Right, R1.

Cyburbia (From TM1): At the 2 player vs. stage selection screen, press Down, Up, L1, R1.

The Rooftop (From TM1): At the 2 player vs. stage selection screen, press Down, Left, R1, Down.

Special Codes:

Freeze: L, R, U
Napalm: R, L, U
Jump: U, U, L
Shield: U, U, R
Rear Attack: L, R, D
Land Mine: R, L, D
Invisibility: R, D, L, U
Minion's Attack: U, U, D, U, R2

Cheat Codes:

Homing napalm: Accumulate at least two napalms. Fire a napalm, keep the button held, and press Up, Down(2), Left(3), Right(2). Extra napalms will appear in your inventory to confirm correct code entry. Any napalms collected will act as homing napalms when fired and track their intended target.

Eternal life: Hold R1 + L1 and quickly press Up, Down, Left, Right(2), Left, Down, Up during game play. A sound and text message will confirm correct code entry.

God mode: Hold L1 + L2 + R1 + R2 and quickly press Up, Down, Left, Right(2), Left, Down, Up during game play. A sound and text message will confirm correct code entry.

Unlimited weapons: Hold R2 + L2 and quickly press Up, Down, Left, Right(2), Left, Down, Up during game play. A sound and text message will confirm correct code entry.

Mega guns: Hold R2 and quickly press Up, Down, Left, Right(2), Left, Down, Up during game play. play. A sound and text message will confirm correct code entry.

Power hit: Select Axel as a character. Hold R1 and quickly press Up, Down, Left, Right(2), Left, Down, Up during game play. Run into one of the other vehicles to do massive damage.

Random vehicle: Press R1 at the vehicle selection screen.

"Glitch": As soon as you beat the first part of Dark Tooth (the truck part) put in the invisibility code (right, down, left, up). Now, when you fight the second part of Dark Tooth (the head) you will be invisible!! This doesn't work with all characters, so don't get upset if it doesn't work.

Passwords:

-Axel- Moscow: X /\ X X _ _ Paris: O /\ |¯| _ /\ _ Amazonia: |¯| /\ |¯| O O New York: _ /\ |¯| |¯| X _ Antarctica: X X /\ |¯| /\ O Holland: O X O /\ O O Hong Kong: /\ X O X X O Dark Tooth: /\ |¯| /\ |¯| _ |¯|	-Grasshopper- Moscow: /\ X O _ _ _ Paris: X /\ O |¯| |¯| O Amazonia: _ X O O /\ O New York: O O |¯| O |¯| O Antartica: |¯| /\ _ _ _ |¯| Holland: /\ X _ _ _ |¯| Hong Kong: X /\ /\ _ _ /\ Dark Tooth: X _ X |¯| |¯| _	-Spectre- Moscow O /\ X X /\ _ Paris _ /\ |¯| O O X Amazon O X /\ |¯| /\ X New York _ X O X X /\ Antarctica X _ _ _ O /\ Holland /\ _ |¯| X |¯| Hong Kong X /\ X /\ O |¯| Dark Tooth X O O O _ /\
-Thumper- Moscow O _ _ /\ X _ Paris X |¯| |¯| O O /\ Amazon /\ X O _ |¯| _ Paris X |¯| |¯| O O /\ New York X X /\ /\ X /\ Antarctica /\ /\ |¯| _ _ _ Holland X /\ X _ |¯| /\ Hong Kong /\ _ _ |¯| /\ _ Dark Tooth /\ _ |¯| |¯| X O	-Roadkill- Moscow O X /\ |¯| _ Paris /\ _ /\ _ _ O Amazonia X X /\ O |¯| /\ New York O _ _ X _ X Antarctica _ /\ |¯| X O _ Holland X _ _ /\ |¯| Hong Kong /\ |¯| |¯| /\ O /\ Dark Tooth /\ O X /\ |¯| X	-Shadow- Moscow |¯| _ _ /\ /\ _ Paris X X O _ /\ X Amazonia X /\ X |¯| O /\ New York X _ _ X O |¯| Antartica O X O O X O Holland O /\ |¯| /\ |¯| Hong Kong O _ /\ _ |¯| X Dark Tooth O /\ _ /\ O _
-Hammerhead- Moscow _ /\ X X X _ Paris _ X /\ |¯| X /\ Amazonia /\ _ _ _ X O New York /\ /\ X /\ X X Antarctica /\ X /\ O X |¯| Holland /\ |¯| |¯| X |¯| _ Hong Kong O /\ O |¯| |¯| /\ Dark Tooth O O O _ /\ X	-Mr. Grim- Moscow /\ /\ X X O _ Paris O X /\ O /\ X Amazonia X |¯| |¯| /\ /\ /\ New York /\ _ _ O X O Antarctica O /\ X /\ X _ Holland X X /\ _ O X Hong Kong _ X O /\ |¯| |¯| Dark Tooth _ |¯| /\ O O /\	-Outlaw 2- Moscow _ X O _ /\ Paris /\ /\ X O /\ _ Amazonia /\ |¯| |¯| |¯| /\ _ New York O X /\ /\ /\ _ Antartica X /\ O X /\ _ Holland X |¯| |¯| _ /\ _ Hong Kong _ /\ X |¯| X X Dark Tooth _ O X _ /\ _
-Twister- Moscow X _ _ /\ O _ Paris /\ X O O X /\ Amazonia _ /\ |¯| X |¯| O New York X /\ X O X _ Antartica O _ _ X |¯| /\ Holland _ X X _ _ O Hong Kong X X /\ X |¯| _ Dark Tooth X |¯| _ |¯| /\ O	-Warthog- Moscow /\ _ _ /\ |¯| _ Paris /\ |¯| |¯| |¯| X |¯| Amazonia O |¯| |¯| O X X New York X |¯| |¯| _ X O Antartica _ X O /\ _ |¯| Holland /\ X /\ |¯| _ X Hong Kong O X /\ O _ O Dark Tooth O |¯| _ O O |¯|	-Mr. Slam- Moscow X X /\ |¯| X _ Paris X _ _ O X |¯| Amazonia O /\ |¯| _ |¯| X New York /\ X O |¯| _ O Antartica /\ _ /\ O /\ /\ Holland _ O _ _ O _ Hong Kong |¯| _ _ /\ _ /\ Dark Tooth |¯| _ |¯| /\ O X

Game Shark Codes

Extra Vehicles: 80180d040101
Infinite Armor: 80187D000096
Infinite Armor P2: 801885140096
Rapid Fire: 801882FE0000
Rapid Fire P2: 80188B120000
All Infinite Weapons P1: 801882da0f0f
All Infinite Weapons P2: 80188aee0f0f
Darktooth: 8003434A OEOE