This Cheat Codes are mostly compatible with GTA 4. Some codes are also working for another versions also .
All ''Light'' Weapons
THUGSTOOLS
All ''Medium'' Weapons
PROFESSIONALTOOLS
All ''Heavy'' Weapons
NUTTERTOOLS
Full Health
ASPIRINE
Full Armor
PRECIOUSPROTECTION
Commit Suicide
ICANTTAKEITANYMORE
Raise Wanted Level
YOUWONTTAKEMEALIVE
Decrease Wanted Level
LEAVEMEALONE
Make Women Follow You
FANNYMAGNET
Smoke Cigarettes
CERTAINDEATH
Makes Tommy Fatter
DEEPFRIEDMARSBARS
Gives Tommy Girly Arms and Legs
PROGRAMMER
Change Skin/Clothes
STILLLIKEDRESSINGUP
Play as Ricardo Diaz
CHEATSHAVEBEENCRACKED
Play as Lance Vance
LOOKLIKELANCE
Play as Ken Rosenberg
MYSONISALAWYER
Play as Hilary King
LOOKLIKEHILARY
Play as Love Fist character (Jezz Torent)
ROCKANDROLLMAN
Play as Love Fist Character (Dick)
WELOVEOURDICK
Play as Phil Cassidy
ONEARMEDBANDIT
Play as Sonny Forelli
IDONTHAVETHEMONEYSONNY
Play as Mercedes
FOXYLITTLETHING
Spawn a Rhino
PANZER
Spawn a Bloodring Banger
TRAVELINSTYLE
Spawn a Bloodring Banger #2
GETTHEREQUICKLY
Spawn a Sabre Turbo
GETTHEREFAST
Spawn a Hotring Racer
GETTHEREVERYFASTINDEED
Spawn a Hotring Racer #2
GETTHEREAMAZINGLYFAST
Spawn a Romero's Hearse
THELASTRIDE
Spawn Love Fist's Limo
ROCKANDROLLCAR
Spawn a Trashmaster
RUBBISHCAR
Spawn a Caddie
BETTERTHANWALKING
Blow Up Nearby Cars
BIGBANG
Aggressive Drivers
MIAMITRAFFIC
All Cars Pink
AHAIRDRESSERSCAR
All cars Black
IWANTITPAINTEDBLACK
Cars Can Fly
COMEFLYWITHME
Perfect Handling
GRIPISEVERYTHING
All traffic Lights Are Green
GREENLIGHT
Cars Can Drive and Hover Over Water
SEAWAYS
Only the Car’s Wheels Are Visible
WHEELSAREALLINEED
Big Wheels On Sportscars
LOADSOFLITTLETHINGS
Pedestrians Get In Your Car
HOPINGIRL
Sunny/Clear Weather
ALOVELYDAY
Light Clouds
APLEASANTDAY
Dense Clouds
ABITDRIEG
Foggy Weather
CANTSEEATHING
Stormy Weather
CATSANDDOGS
Speed Up Game Clock
LIFEISPASSINGMEBY
Speed Things Up
ONSPEED
Slow Things Down
BOOOOOORING
Pedestrians Riot
FIGHTFIGHTFIGHT
Pedestrians Hate You
NOBODYLIKESME
Pedestrians Carry Guns
OURGODGIVENRIGHTTOBEARARMS
Girls Carry Guns
CHICKSWITHGUNS
Shows Media Level (when 2+ stars)
CHASESTAT