Random Text Cheat Codes:
Type/enter these codes during gameplay. The set code can be uppercase or lowercase.

YLTEICZ - Aggressive Drivers
LLQPFBN - Pink traffic
IOWDLAC - Black traffic
AFSNMSMW - Boats fly
BTCDBCB - Fat
JYSDSOD - Max Muscle
KVGYZQK - Skinny
ASBHGRB - Elvis is Everywhere
BGLUAWML - Peds Attack You With Weapons, Rocket Launcher
AEZAKMI - Never Wanted
CIKGCGX - Beach Party
MROEMZH - Gang Members Everywhere
MROEMZH - Gangs Control the Streets
AFPHULTL - Ninja Theme
BEKKNQV - Slut Magnet
BGKGTJH - Traffic is Cheap Cars
GUSNHDE - Traffic is Fast Cars
RIPAZHA - Cars Fly
JHJOECW - Huge Bunny Hop
JUMPJET - Spawn Hydra
KGGGDKP - Spawn Vortex Hovercraft
JCNRUAD - Smash n' Boom
COXEFGU - All Cars Have Nitro
BSXSGGC - Cars Float Away When Hit
XJVSNAJ - Always Midnight
OFVIAC - Orange Sky 21:00
MGHXYRM - Thunderstorm
CWJXUOC - Sandstorm
LFGMHAL - Mega Jump
BAGUVIX - Large Health Boost
CVWKXAM - Infinite Oxygen
AIYPWZQP - Have Parachute
YECGAA - Have Jetpack
LJSPQK - Six Star Wanted Level
CFVFGMJ - Foggy Weather
YSOHNUL - Faster Clock
PPGWJHT - Faster Gameplay
LIYOAAY - Slower Gameplay
AJLOJYQY - Peds Attack Each Other, Get Golf Club
BAGOWPG - Have a bounty on your head
FOOOXFT - Everyone is armed
AIWPRTON - Spawn Rhino
CQZIJMB - Spawn Bloodring Banger
JQNTDMH - Spawn Rancher
PDNEJOH - Spawn Racecar
VPJTQWV - Spawn Racecar
AQTBCODX - Spawn Romero
KRIJEBR - Spawn Stretch
UBHYZHQ - Spawn Trashmaster
RZHSUEW - Spawn Caddy
CPKTNWT - Blow Up All Cars
XICWMD - Invisible car
PGGOMOY - Perfect Handling
SZCMAWO - Suicide
ZEIIVG - All green lights
LXGIWYL - Weapon Set 1, Thug's Tools
KJKSZPJ - Weapon Set 2, Professional Tools
UZUMYMW - Weapon Set 3, Nutter Tools
HESOYAM - Health, Armor, $250k
OSRBLHH - Increase Wanted Level Two Stars
ASNAEB - Clear Wanted Level
AFZLLQLL - Sunny Weather
ICIKPYH - Very Sunny Weather
ALNSFMZO - Overcast Weather
AUIFRVQS - Rainy Weather
IAVENJQ - Mega Punch
AEDUWNV - Never Get Hungry
IOJUFZN - Riot Mode
PRIEBJ - Funhouse Theme
MUNASEF - Adrenaline Mode
WANRLTW - Infinite Ammo, No Reload
OUIQDMW - Full Weapon Aiming While Driving
THGLOJ - Reduced Traffic
FVTMNBZ - Traffic is Country Vehicles
SJMAHPE - Recruit Anyone (9mm)
BMTPWHR - Country Vehicles and Peds, Get Born 2 Truck Outfit
ZSOXFSQ - Recruit Anyone (Rockets)
OGXSDAG - Max Respect
EHIBXQS - Max Sex Appeal
VKYPQCF - Taxis Have Nitrous, L3 Bunny Hop
NCSGDAG - Hitman In All Weapon Stats
OHDUDE - Spawn Hunter
AKJJYGLC - Spawn Quad
AMOMHRER - Spawn Tanker Truck
EEGCYXT - Spawn Dozer
URKQSRK - Spawn Stunt Plane
AGBDLCID - Spawn Monster
IFIRSTDOZ - Never Wanted
CAINEMVHZC - Infinite Health, except for explosions and falls

Plain Text Cheat Codes:
Type these codes during gameplay. The set code can be uppercase or lowercase.

Testeducationalskills - No Wanted Level
MONSTERMASH - Spawn Monster
SPEEDFREAK - All Cars Have Nitro
STATEOFEMERGENCY - Chaos Mode
JUMPJET - Spawn Hydra
BUBBLECARS - Cars Float Away When Hit
KANGAROO - Mega Jump
SCOTTISHSUMMER - Thunderstorm
NIGHTPROWLER - Always Midnight
BRINGITON - Six Star Wanted Level
ROCKETMAN - Have Jetpack
CRAZYTOWN - Funhouse Theme
FULLCLIP - Infinite Ammo, No Reload
GHOSTTOWN - Reduced Traffic
ROCKETMAYHEM - Recruit Anyone (Rockets)
WORSHIPME - Max Respect
PROFESSIONALKILLER - Hitman In All Weapon Stats
NATURALTALENT - Max All Vehicle Skill Stats
ITSALLBULL - Spawn Dozer
FLYINGTOSTUNT - Spawn Stunt Plane
FOURWHEELFUN - Spawn Quad
OHDUDE - Spawn Hunter
CJPHONEHOME - Huge Bunny Hop
NINJATOWN - Ninja Theme
EVERYONEISPOOR - Traffic is Cheap Cars
EVERYONEISRICH - Traffic is Fast Cars
BIFBUZZ - Gangs Control the Streets
ONLYHOMIESALLOWED - Gang Members Everywhere
BUFFMEUP - Max Muscle
BLUESUEDESHOES - Elvis is Everywhere
GOODBYECRUELWORLD - Suicide
FLYINGFISH - Boats Fly
WHEELSONLYPLEASE - Invisible car
STICKLIKEGLUE - Perfect Handling
TRUEGRIME - Spawn Trashmaster
CELEBRITYSTATUS - Spawn Stretch
WHERESTHEFUNERAL - Spawn Romero
HELLOLADIES - Max Sex Appeal
VROCKPOKEY - Spawn Racecar
SLOWITDOWN - Slower Gameplay
SPEEDITUP - Faster Gameplay
TOODAMNHOT - Very Sunny Weather
PLEASANTLYWARM - Sunny Weather
PROFESSIONALSKIT - Weapon Set 2, Professional Tools

Unlockable Outfits:
These are all the Unlockable Outfits in the game...

Medic Uniform - Date Katie to %100
Pimp Suit - Date Denise to %100
Overall's Outfit - Date Helena to %100
Racing Outfit - Date Michelle to %100
Police Uniform - Date Barbara to %100
Valet Uniform - Complete the mission "555-WE-TIP"
Gimp Suit - Complete the mission "The Key to her Heart"
Croupier Uniform - Complete the mission "Breaking the bank at Caligula's"

Girlfriends Cars:
These cars are obtained through getting the girfriends to %50...

Green Hustler - Date Denise to %50
Bandito - Date Helena (Her car doesn't have any doors)
White Romero - Date Katie to %50
Monster Truck - Date Michelle to %50
Police Ranger - Date Barbara to %50
Pink Club - Date Millie to %50

Girlfriend Perks:
Free Pay-and-Spray - Date Michelle and you can use her Garage as a Pay-and-Spray

Keep weapons after being Wasted - Date Katie

Keep weapons after being Busted - Date Barbara

Pistol, Chainsaw, Molotov Cocktails, and Flame Thrower - Date Helena(you can find the weapons in a big shed by her house)

Dual Weildable Weapons:
Get these weapons to Hitman to Dual Weild them

Dual Pistol's - Reach the Gun Rank " Hitman"
Dual Sawn-off Shotgun's - Reach the Gun Rank "Hitman"
Dual Tec-9's - Reach the Gun Rank "Hitman"
Dual Micro-SMG's - Reach the Gun Rank "Hitman"

"Hidden Package" Rewards:
Collect all the "hidden packages" in their respective areas to get these weapons...

Tec-9, AK-47, Sawn-off Shotgun, and Molotov Cocktails at CJ's house in Ganton - Spray all 100 Graffiti Tags in Los Santos

Sniper Rifle, Grenades, Shotgun, and Micro-SMG at CJ's Garage in San Fierro - Snap all 50 Snapshots in San Fierro

MP5, Satchel Charge, M4, and Combat Shotgun at The Four Dragons Casino in Las Venturas - Collect all 50 Horseshoes in Las Venturas

Assets:
Complete the assets missions/objectives to get money made at that location

Airstrip Asset - Complete the Missions for the Airstrip
Burger Shot Asset - Complete all 4 Deliveries in Las Venturas
Hippy Shopper Asset - Complete all 4 Deliveries in San Fierro
Roboi's Food Mart Asset - Complete all 4 Deliveries in Los Santos
The Johnson House - Take Over Territories in Los Santos
Vank Hoff Hotel Valet Parking Asset - Complete all 5 Levels of Valet Parking in San Fierro
Wang Cars Asset - Complete the missions for this asset, plus the cars you steal will spawn inside the showroom
Zero's RC Shop Asset - Complete all of the RC Shop missions

Vehicle Side-Mission:
CJ becomes Fireproof - Complete all 12 Levels of the Firetruck Missions
Armor get raised to Maximum - Complete all 12 Levels of the Vigilante Missions
Health get raised to Maximum - Complete all 12 Levels of the Paramedic Missions
$50,000 & Free Train Rides - Complete all 2 Levels of the Freight Train Missions
Nirto on all Taxis/Cabbies and Taxi's and Cabbies can Hop - Succesfully Transport 50 People(Complete 50 Fares)
Entertaining prositutes earns you money (instead of taking it away) - Complete level 10 of the pimping missions

Unlimited ammo:
Complete the game 100% (get 100% on the stat Progress Made)

Bonus $1.000.000:
Locations are marked with checkered flag. See radar or map.

1.000.000$ bonus - Finish all races 1st (four locations)

100% completition Bonus:
increased stats - complete the game 100%
increased money - complete the game 100%
Hydra spawns at CJ's house in Grove Street - complete the game 100%
Rhino spawns at CJ's house in Grove Stree - complete the game 100%

Infinite sprint:
Complete the Burglary mission by having C.J. steal $10,000 worth of stuff.

Save two cars in your garage:
This works in the same way as the previous games. Normally you can only save one car in your garage, but with this you can save two or more! All you have to do is get your two or however many cars and bring them up to your garage. Drive one of them until the garage door opens, and then drive it half way in and get out of the car. This will keep the door open for you. Next, get into the other car and drive that all the way into the garage. Then get into the car half way in and drive it the rest of the way in and get out and leave the garage. Et viola! You now have two cars stored in your garage!

Stop gang attack on your territory:
To stop other gangs from attacking your territory, just save you game, this will stop the gang war and you won't have to fight them.

Free Money:
Go to a strip club and stand in front of a stripper when the people watching them gives them money CJ will take it instead since you are where they put the money

Basketball Tricks:
Click the left mouse button while playing basketball to do tricks with the ball.

Edit the stats of any vehicle in game:
First browse to your GTA:SA isntall directory, it will look something like this:

C:\Program Files\Rockstar Games\GTA San Andreas\

Then go to the data directory. MAKE A BACKUP OF ANY FILES BEFORE YOU EDIT THEM. To edit the vehicle stats, open the handling.cfg file in notepad. As you can see, all the info on every vehicle in in there. Follow the instructions in the comments to find out how to edit it.

You can do anything like make a Rhino as light as a PCJ600 and control just as well.

Basically, you can edit anything in the game from these files. Just be careful what you edit and leave them as sane values to prevent glitches.

Choose size of the Moon:
Shoot it with sniper to make it change size from bigger to smaller and vice versa.

Free Vehicle Repair:
For free and fast car repair, park your car in one of your garages, back away to let the door close, then step torwards the garage so the door opens again. The car will be instantly repaired of all dents, etc. This is especially useful if you have an expensive modded car that you want to keep for certain ingame stats.

NOS recharge without waiting:
Instead of having to wait for the NOS to recharge to use again, exit then enter the car, and you can use the NOS again.

Early and riskfree exploration:
During the mission "Reuniting the Families", you have to shoot down a group of SWAT team and then enter the motel to save Sweet. Beating the SWAT, instead of getting into the motel, you can travel all around the entire map and enter all the restricted areas like the military base and the maps that are locked. You will have no wanted level and no cops will chase you. You can explore the entire map freely without taking risk. This is the best time to confirm vehicle and item locations and to collect the snapshots, oysters and horseshoes.

Restricted areas open for you:
During Woozie's mission "Amphibian Assault", the wanted level system is disabled. You can now travel everywhere in the game including the restricted areas like the Eastern naval base and all police stations without the cops chasing you. This is time to collect the two oysters in the extremely dangerous naval base without being shot.