During game play press TRIANGLE, UP, SQUARE, SQUARE, L2, L1, SQUARE
Faster cars
During game play press RIGHT, R1, UP, L2, L2, LEFT, R1, L1, R1, R1
Flying boats
During game play press R2, CIRCLE, UP, L1, RIGHT, R1, RIGHT, UP, SQUARE, TRIANGLE
Foggy Weather
During game play press R2, X, L1, L1, L2, L2, L2, X
Full Health, Full Armor, $250,000
To have all of the above, press the following during gameplay: R1, R2, L1, X, LEFT, DOWN, RIGHT, UP, LEFT, DOWN, RIGHT, UP.
Get Rhino
To make a Rhino tank fall from the sky, press the following during gameplay: CIRCLE, CIRCLE, L1, CIRCLE, CIRCLE, CIRCLE, L1, L2, R1, TRIANGLE, CIRCLE, TRIANGLE.
Overcast Weather
R2, X, L1, L1, L2, L2, L2, TRIANGLE
Pedestrian Riot- Cannot be disabled
DOWN, LEFT, UP, LEFT, X, R2, R1, L2, L1
Pedestrians Have Weapons
R2, R1, X, TRIANGLE, X, TRIANGLE, UP, DOWN
Perfect Handling
During game play press TRIANGLE, R1, R1, LEFT, R1, L1, R2, L1.
Pink Traffic
During game play press CIRCLE, L1, DOWN, L2, LEFT, X, R1, L1, RIGHT, CIRCLE
Rainy Weather
During game play press R2, X, L1, L1, L2, L2, L2, CIRCLE
Slower Game Play
During game play press TIRANGLE, UP, RIGHT, DOWN, SQUARE, R2, R1
Spawn Bloodring Banger
During game play press DOWN, R1, CIRCLE, L2, L2, X, R1, L1, LEFT, LEFT
Spawn Caddy
During game play Press CIRCLE, L1, UP, R1, L2, X, R1, L1, CIRCLE, X
Spawn Hotring Racer 1
During game play press R1, CIRCLE, R2, RIGHT, L1, L2, X, X, SQUARE, R1.
Spawn Hotring Racer 2
During game play press R2, L1, CIRCLE, RIGHT, L1, R1, RIGHT, UP, CIRCLE, R2.
Spawn Ranger
During game play press UP, RIGHT, RIGHT, L1, RIGHT, UP, SQUARE, L2.
Spawn Romero
During game play press DOWN, R2, DOWN, R1, L2, LEFT, R1, L1, LEFT, RIGHT.
Spawn Stretch
During game play press R2, UP, L2, LEFT, LEFT, R1, L1, CIRCLE, RIGHT.
Spawn Trashmaster
During game play press CIRCLE, R1, CIRCLE, R1, LEFT, LEFT, R1, L1, CIRCLE, RIGHT
Suicide
RIGHT, L2, DOWN, R1, LEFT, LEFT, R1, L1, L2, L1
Sunny Weather
R2, X, L1, L1, L2, L2, L2, SQUARE
Wanted Level Down
To erase your Wanted Level, enter the following during gameplay: R1, R1, CIRCLE, R2, UP, DOWN, UP, DOWN, UP, DOWN.
Wanted Level Up
To raise your Wanted Level, enter the following during gameplay: R1, R1, CIRCLE, R2, LEFT, RIGHT, LEFT, RIGHT, LEFT, RIGHT.
Game Secrets / Easter Eggs: The guy who steals your girlfriend after the race is just that- "The Guy" from GTA3.
Zoom up on the action figures behind the counters behind the cash register at Zero's- They are pink boxes with either Lance Vance or Tommy Vercetti action figures inside.
Shooting the moon with a sniper rifle still works.
Hint: Go to the airport in Las Venturas and go to the big hangar at the end of the main runway. It should open and there will be a huge passenger plane in there. You can even fly over Area 69 without getting attacked.
Build up your muscle fast: Go to workout spot and work out for awhile, but dont work out until it says you cant anymore. Walk outside and then come back in. Keep doing that until you have your muscle all the way up.
Hint: If you go into a bar, (especially one with a pool table), repeatedly shoot the place up, and save your game, when you go back to the bar, you won't be able to play pool anymore and the bartender and pedestrians will either duck or put their hands up. Not only will it be like that in the bar you shot up, it will be like that in EVERY bar you go into, no matter which city. To prevent it from happening again, go into the bar a couple of times and don't shoot anything. After awhile, everything will be back to normal.
How to find a Lawnmower: In Mulholland, there is a road which leads to a Safehouse, come out of that road and tuen left, carry on driving or running or whatever straight until you reach the end of the bridge. Enter the 3rd house with 2 big pillars on the side. Carry on straight, past the Garages and you should see a lawnmower on the grass.
Sex Toy: The 2-headed sex toy you find in Katie Zahn's bedroom (You can enter her house and see her kinky bedroom setup as well as grab the object) can also be used as a gift to ANY of the 6 girlfriends. Just like flowers! (you can also find that object at the police station locker room in San Fierro)
Web site: On a radio station in the game you will hear something about Pets Overnight.com. Get on the internet and type: http://petsovernight.com/ in the adress bar...Its an acual web site!
Glitch: When you are on the Black Project (Jetpack), let someone kill you whilst high in the air. Once you are dead you will still be flying but you cant controll it and you eventualy fall dead on the ground, in the sea or on a building.