Tank:
Press Circle(6), R1, L2, L1, Triangle, Circle, Triangle during game play. A message will confirm correct code entry. The tank will appear in front of you. This may be repeated as many times as needed.
Dodo car:
Press Right, R2, Circle, R1, L2, Down, L1, R1 during game play. A message will confirm correct code entry.
Lower wanted level:
Press R2(2), L1, R2, Up, Down, Up, Down, Up, Down during game play. A message will confirm correct code entry. Note: Saving the game will make the effects of this code permanent.
Higher wanted level:
Press R2(2), L1, R2, Left, Right, Left, Right, Left during game play. A message will confirm correct code entry. Note: Saving the game will make the effects of this code permanent.
All weapons:
Press R2(2), L1, R2, Left, Down, Right, Up, Left, Down, Right, Up during game play. A message will confirm correct code entry. Repeat this code for more ammunition.
Full health:
Press R2(2), L1, R1, Left, Down, Right, Up, Left, Down, Right, Up during game play. A message will confirm correct code entry.
Full armor:
Press R2(2), L1, L2, Left, Down, Right, Up, Left, Down, Right, Up during game play. A message will confirm correct code entry.
More money:
Press R2(2), L1, L1, Left, Down, Right, Up, Left, Down, Right, Up during game play. A message will confirm correct code entry.
Destroy all cars:
Press L2, R2, L1, R1, L2, R2, Triangle, Square, Circle, Triangle, L2, L1. A message will confirm correct code entry.
Better driving skills:
Press R1, L1, R2, L1, Left, R1(2), Triangle during game play. A message will confirm correct code entry. Press L3 or R3 to jump while driving. Note: Saving the game will make it so your car will never tip. Also every car will have hydraulics which will enable it jump 15 feet in the air over other cars.
Increased gore:
Press Square, L1, Circle, Down, L1, R1, Triangle, Right, L1, X during game play. No confirmation message will appear. Note: Saving the game will make the effects of this code permanent.
Fog:
Press L1, L2, R1, R2(2), R1, L2, X during game play. A message will confirm correct code entry.
Overcast skies:
Press L1, L2, R1, R2(2), R1, L2, Square during game play. A message will confirm correct code entry.
Rain:
Press L1, L2, R1, R2(2), R1, L2, Circle during game play. A message will confirm correct code entry.
Normal weather:
Press L1, L2, R1, R2(2), R1, L2, Triangle during game play. A message will confirm correct code entry.
Speed up time:
Press Circle(3), Square(5), L1, Triangle, Circle, Triangle during game play. A message will confirm correct code entry.
Different costume:
Press Right, Down, Left, Up, L1, L2, Up, Left, Down, Right during game play. A message will confirm correct code entry.
Pedestrians riot:
Press Down, Up, Left, Up, X, R1, R2, L2, L1 during game play. A message will confirm correct code entry.
Pedestrians attack:
Press Down, Up, Left, Up, X, R1, R2, L1, L2 during game play. A message will confirm correct code entry.
Pedestrians crazy:
Press R2, R1, Triangle, X, L2, L1, Up, Down during game play. A message will confirm correct code entry.
Get to Staunton Island early:
Use the following trick to get to Staunton Island before the bridge is fixed and before the subway is open. Go to the bridge to Staunton Island. Go past where the blockage cones are located, to basically be on the bridge. Enable the Dodo car code (press Right, R2, Circle, R1, L2, Down, L1, R1), then the tank code (press Circle(6), R1, L2, L1, Triangle, Circle, Triangle). Make sure you are all the way back to get enough room to take off using the tank (as a plane). Start firing the cannon backwards and accelerate. Keep firing the cannon backwards, and just as you get to the edge where the bridge has been broken, you will take off. Try and get back on the ground. If done correctly you will now be on Staunton Island. Note: When you cross the bridge, the "Welcome To Staunton Island" screen will appear to confirm success. Note: You can use nearly any car, but the tank has a better ability to fly higher.
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Police bribe:
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Get 45 kills in vigilante mode to unlock a police bribe that is available at your hideout.
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Faster Taxi's
------------------------------------------------------------
Get 100 fares in cab mode to unlock faster taxis available at Borgnine in Harwood in Portland.
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More cars in garage:
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When you are at your hideout, you are able to park any vehicle for later use. In the second island you are allowed two cars in the garage, but the following trick will let you park as many as many as you can fit. After you drive up to the garage door and the game states that you cannot park any more cars, get out and walk up to the door. The garage will open. As soon as it does, immediately get back into your car and drive it in as it closes again. You have to do this quickly, but once it is in the game will save the car. Also, try stacking cars on top of one another which will increase garage space.
Press Circle(6), R1, L2, L1, Triangle, Circle, Triangle during game play. A message will confirm correct code entry. The tank will appear in front of you. This may be repeated as many times as needed.
Dodo car:
Press Right, R2, Circle, R1, L2, Down, L1, R1 during game play. A message will confirm correct code entry.
Lower wanted level:
Press R2(2), L1, R2, Up, Down, Up, Down, Up, Down during game play. A message will confirm correct code entry. Note: Saving the game will make the effects of this code permanent.
Higher wanted level:
Press R2(2), L1, R2, Left, Right, Left, Right, Left during game play. A message will confirm correct code entry. Note: Saving the game will make the effects of this code permanent.
All weapons:
Press R2(2), L1, R2, Left, Down, Right, Up, Left, Down, Right, Up during game play. A message will confirm correct code entry. Repeat this code for more ammunition.
Full health:
Press R2(2), L1, R1, Left, Down, Right, Up, Left, Down, Right, Up during game play. A message will confirm correct code entry.
Full armor:
Press R2(2), L1, L2, Left, Down, Right, Up, Left, Down, Right, Up during game play. A message will confirm correct code entry.
More money:
Press R2(2), L1, L1, Left, Down, Right, Up, Left, Down, Right, Up during game play. A message will confirm correct code entry.
Destroy all cars:
Press L2, R2, L1, R1, L2, R2, Triangle, Square, Circle, Triangle, L2, L1. A message will confirm correct code entry.
Better driving skills:
Press R1, L1, R2, L1, Left, R1(2), Triangle during game play. A message will confirm correct code entry. Press L3 or R3 to jump while driving. Note: Saving the game will make it so your car will never tip. Also every car will have hydraulics which will enable it jump 15 feet in the air over other cars.
Increased gore:
Press Square, L1, Circle, Down, L1, R1, Triangle, Right, L1, X during game play. No confirmation message will appear. Note: Saving the game will make the effects of this code permanent.
Fog:
Press L1, L2, R1, R2(2), R1, L2, X during game play. A message will confirm correct code entry.
Overcast skies:
Press L1, L2, R1, R2(2), R1, L2, Square during game play. A message will confirm correct code entry.
Rain:
Press L1, L2, R1, R2(2), R1, L2, Circle during game play. A message will confirm correct code entry.
Normal weather:
Press L1, L2, R1, R2(2), R1, L2, Triangle during game play. A message will confirm correct code entry.
Speed up time:
Press Circle(3), Square(5), L1, Triangle, Circle, Triangle during game play. A message will confirm correct code entry.
Different costume:
Press Right, Down, Left, Up, L1, L2, Up, Left, Down, Right during game play. A message will confirm correct code entry.
Pedestrians riot:
Press Down, Up, Left, Up, X, R1, R2, L2, L1 during game play. A message will confirm correct code entry.
Pedestrians attack:
Press Down, Up, Left, Up, X, R1, R2, L1, L2 during game play. A message will confirm correct code entry.
Pedestrians crazy:
Press R2, R1, Triangle, X, L2, L1, Up, Down during game play. A message will confirm correct code entry.
Get to Staunton Island early:
Use the following trick to get to Staunton Island before the bridge is fixed and before the subway is open. Go to the bridge to Staunton Island. Go past where the blockage cones are located, to basically be on the bridge. Enable the Dodo car code (press Right, R2, Circle, R1, L2, Down, L1, R1), then the tank code (press Circle(6), R1, L2, L1, Triangle, Circle, Triangle). Make sure you are all the way back to get enough room to take off using the tank (as a plane). Start firing the cannon backwards and accelerate. Keep firing the cannon backwards, and just as you get to the edge where the bridge has been broken, you will take off. Try and get back on the ground. If done correctly you will now be on Staunton Island. Note: When you cross the bridge, the "Welcome To Staunton Island" screen will appear to confirm success. Note: You can use nearly any car, but the tank has a better ability to fly higher.
============================================================
Police bribe:
------------------------------------------------------------
Get 45 kills in vigilante mode to unlock a police bribe that is available at your hideout.
------------------------------------------------------------
Faster Taxi's
------------------------------------------------------------
Get 100 fares in cab mode to unlock faster taxis available at Borgnine in Harwood in Portland.
------------------------------------------------------------
More cars in garage:
--------------------------------------------------------------------------------
When you are at your hideout, you are able to park any vehicle for later use. In the second island you are allowed two cars in the garage, but the following trick will let you park as many as many as you can fit. After you drive up to the garage door and the game states that you cannot park any more cars, get out and walk up to the door. The garage will open. As soon as it does, immediately get back into your car and drive it in as it closes again. You have to do this quickly, but once it is in the game will save the car. Also, try stacking cars on top of one another which will increase garage space.