Higher Wanted Level
During gameplay press R2, R2, L1, R2, Left, Right, Left, Right, Left, Right.
Flying Cars
To fly any car that is fast enough (just about any car in the game), enter the Dodo cheat, Right, R2, Circle, R1, L2, Down, L1, R1 during gameplay. Use it to fly over the bridges, or shoot someone elses car. When they run away they lose control on turns and do rolls. Very funny. Enter the code again to take it off if your tired of wrecking your cars.
Note: Fly your car like the dodo, if you press up to hard, your car falls.
Lower Wanted Level
During gameplay press R2, R2, L1, R2, Up, Down, Up, Down, Up, Down.
Tank
During gameplay press Circle, Circle, Circle, Circle, Circle, Circle, R1, L2, L1, Triangle, Circle, Triangle.
Change outfit
During gameplay press Right, Down, Left, Up, L1, L2, Up, Left, Down, Right.
People fight each other
During gameplay press Down, Up, Left, Up, X, R1, R2, L2, L1.
All people hate you
During gameplay press Down, Up, Left, Up, X, R1, R2, L1, L2.
Crazy people
During gameplay press R2, R1, Triangle, X, L2, L1, Up, Down.
People fistfight each other
During gameplay press Right, R2, Circle, R1, L2, Down, L1, R1.
Improved car handling
During gameplay press R1, L1, R2, L1, Left, R1, R1, Triangle.
Blow up all cars
During gameplay press L2, R2, L1, R1, L2, R2, Triangle, Square, Circle, Triangle, L2, L1
Gore Mode
During gameplay press Square, L1, Circle, Down, L1, R1, Triangle, Right, L1, X.
Clear Weather
During gameplay press L1, L2, R1, R2, R2, R1, L2, Triangle.
Foggy Weather
During gameplay press L1, L2, R1, R2, R2, R1, L2, X.
Cloudy Weather
During gameplay press L1, L2, R1, R2, R2, R1, L2, Square.
Rainy Weather
During gameplay press L1, L2, R1, R2, R2, R1, L2, Circle.
Urban Warfare
Ok have you ever wanted to fight tons of people? here's how. type in the crazy people code first (r2 r1 triangle x L2 L1 up down) now everyone has guns. now type in the people fight code( down up left up x r1 r2 L2 L1) now everyone's fighting with guns. its really awesome the cops wont go after them though. I don't suggest u put on the all people hate u cheat though while doing this (u will last 2 seconds)
Magic Garage
On Portland and Shoreside Vale there are magic garages. The Portland garage is by the ship where the cartel are selling spank. there is one garage there with a list of cars by it. if you take the cars on the list to the garage it will open. drive the cars in and walk out. there will be a message saying they will give you a bonus if you get all the listed cars into the garage. on shoreside vale the garage is near the hospital and the entrance to the top of the dam. it is hard to find but worth it. this one has easier cars to find. if you complete the list, the garage will open and all the cars you drove in will be there for you to take. (find the garage on shoreside vale first, it has better cars to put in. banshee, stinger, infernus, and cheetah.
Fun Ride
First put on the Flying Car cheat: Right, R2,Circle, R1, L2, Down,L1, R1.Then Jump on a car, then shoot the roof of the car with a weapon you can aim like the sniper rifle, then the car should start to go fast (not all car will start to go fast) The car will go fast enough to fly. (do this near a cliff at Shore Side Vale to fly a long distance) once the car go out of control you most likely will die.
More money
During gameplay press R2, R2, L1, L1, Left, Down, Right, Up, Left, Down, Rithg, Up
Speed up time During gameplay press Circle, Circle, Circle, Square, Square, Square, Square, Square, L1, Triangle, Circle, Triangle.
Full Armor
During gameplay press R2, R2, L1, L2, Left, Down, Right, Up, Left, Down, Right, Up
Full Health
During gameplay press R2, R2, L1, R1, Left, Down, Right, Up, Left, Down, Right, Up
All Weapons
During gameplay press R2, R2, L1, R2, Left, Down, Right, Up, Left, Down, Right, Up
F.B.I. Car
To get the F.B.I. car first activate the cheat to get the tank, when you get the tank start smashing cars and making felonies until you get the 5 stars, when the F.B.I. starts to appears, then drive around until you see the F.B.I. make a block with 3 cars, stop the tank and then activate the lower star cheat, get out of the tank and get an F.B.I. car, do the lower stars cheat again and head to the garage and save it.