These are the known cheats so far. If they are looking familiar, then you guessed it. They are the same button combos from Vice City. Some cheats will get you different results, like the Blood Ring Racer and Banger. Glitches and Misc are below.
|R1, R2, L1, R2, L, D, R, U, L, D, R, U||All Weapons Set #1|
|R1, R2, L1, R2, L, D, R, U, L, D, D, L||All Weapons Set #2|
|R1, R2, L1, R2, L, D, R, U, L, D, D, D||All Weapons Set #3|
|R1, R1, R2, L1, X, L, D, R, U, L, D, R, U||Full Armor, Health and 250K|
|R, L2, D, R1, L, L, R1, L1, L2, L1||Commit Suicide|
|R1, R1, O, R2, L, R, L, R, L, R||Raise Wanted Level|
|R1, R1, O, R2, U, D, U, D, U, D||Lower Wanted Level|
|R2, O, R1, L2, L, R1, L1, R2, L2||Faster Traffic|
|T, U, R, D, S, R2, R1||Slow Mo|
|O, O, L1, S, L1, S, S, S, L1, T, O, T||Speed Up Time|
|D, L, U, L, X, R2, R1, L2, L1||Pedestrian Riot|
|D, U, U, U, X, R2, R1, L2, L2||Pedestrians Hate You|
Weapon Set #1 = Bat, Pistol, Shotgun, Mini SMG, AK 47, Rocket Launcher, Molotov Cocktail, Spray Can, Brass Knuckles
Weapon Set #2 = Knife, Pistol, Sawn-off Shotgun, Tec 9, Sniper Rifle, Flamethrower, Grenades, Fire Extinguisher
Weapon Set #3 = Chainsaw, Silenced Pistol, Combat Shotgun, M4, Bazooka, Plastic Explosive
|O, O, L1, O, O, O, L1, L2, R1, T, O, T||Rhino|
|D, R1, O, L2, L2, X, R1, L1, L, L||Bloodring Banger|
|U, R, R, L1, R, U, S, L2||Rancher|
|R1, O, R2, R, L1, L2, X, X, S, R1||Hotring Racer 1|
|R2, L1, O, R, L1, R1, R, U, O, R2||Hotring Racer 2|
|D, R2, D, R1, L2, L, R1, L1, L, R||Hearse|
|O, R1, O, R1, L, L, R1, L1, O, R||Trash Master|
|R, L2, D, L2, L2, X, R1, L1, O, L||Sabre Turbo|
|O, L1, U, R1, L2, X, R1, L1, O, X||Caddy|
|R2, L2, R1, L1, L2, R2, S, T, O, T, L2, L1||Blow Up Cars|
|R2, O, R1, L2, L, R1, L1, R2, L2||Aggressive Drivers|
|O, L1, D, L2, L, X, R1, L1, R, O||Pink Cars|
|O, L2, U, R1, L, X, R1, L1, L, O||Black Cars|
|T, R1, R1, L, R1, L1, R2, L1||Perfect Handling|
|R2, X, L1, L1, L2, L2, L2, D||Sunny Weather|
|R2, X, L1, L1, L2, L2, L2, T||Cloudy Weather|
|R2, X, L1, L1, L2, L2, L2, S||Very Cloudy Weather|
|R2, X, L1, L1, L2, L2, L2, O||Stormy Weather|
|R2, X, L1, L1, L2, L2, L2, X||Foggy Weather|
HEADLESS GANGSTA: I haven't seen this on any other websites, or heard of it from anywhere, so here it is for the first time ever! You must have a Katana to pull off this glitch. Go to a Girlfriends house and enable the two player Free Roam. Have your girlfriend assault you endlessly with the Katana until she cuts your head off (she will have the same weapons as player one). Once Carl dies and respawns he will be headless and blood will constantly be squirting outta his neck. Check these videos out for some funny videos of the Headless Gangsta!
Changing Clothes while Headless
Getting a Haircut while Headless
Talking on the Cell while Headless
Strike a Pose: To take a picture of yourself, without the use of a Mirror, pull out your camera and take aim with R1. And at the same moment you go to take the picture, let go of R1 as you hit L1. The zoom lock will release, and the camera will go back to normal view as the picture gets taken.
Reach out and Touch Someone: When you go in the Tanton Gym in Los Santos, go in there with a Knife. Go towards the boxing ring with the two guys in it. The one nearest the exit door will be your victim. Target him and make sure he has his back to you, and then attack. You will stab him in the side of the neck, as if you were right behind him.
Levitation Trick: This requires you to die but its just a little glitch. If you stand on an Ambulance, or maybe any car, and get killed as it drives off, you should be floating in the air - dead.
Joy Ride: Need a lift? Just hop on any car and stay stomping it. If you stop stomping, you will have a chance of falling off when they do a sharp turn.
Sex Toy: If you are near Los Santos police station, why not take a walk inside, and search around some of the rooms. When you enter make your first right, and enter the showers, in there you will find a purple Dildo. What is it doing in a shower, even in a police station for that matter, who knows. While in there you can take a shotgun in exchange for two police Stars.
Pop and Drop: If you are confident in your grenade tossing skills, try to hit someone with it. If you manage to hit them, they will fall down and then get blown up. Nothing really important, its just fun.