Pause the game, choose "CHEATS". and enter one of the following.

Code: Result:

FPATCH 1,000 balls
OLDFAST Antique racer
666999 Bacinari
BLACK Black suit
BLUE Blue suit
BLUESH Blue suit with shades
MARTHA Change time of day
FLYSTRT Decrease Cop Heat
NOBALLS Decrease Gang Heat
DUMPER Dump truck
DUMPER Dump Truck
AMMO Full ammunition
MEDIK Full health
dozer Get a bull dozer
GREY Grey suit
GREYSH Grey suit with shades
HAWAII Hawaii print/shirt
HAWAIIG Hawaii print/shirt w/sunglasses
DONUT Increase Cop Heat
GOBALLS Increase Gang Heat
KILTONY Kill Tony
SHAZAAM Lightning
NOBALLS Lower gang heat
S13 Mission Replay: Babylon Club Redux
S12 Mission Replay: Deliver
SO7A Mission Replay: Freedom Town Redux
S09 Mission Replay: Nacho Contreras
S10 Mission Replay: Nacho's Tanker
DW_frn Mission Replay: Oakley Drive-In
A51 Mission Replay: The Dock Boss
S11 Mission Replay: Un-Load
RAINY Rain
TUNEME Real "The World is Yours" music track
TBURGLR Repairs any vehicle player is currently driving.
TANSHRT Sandy shirt
TANSH Sandy shirt with shades
DOZER Spawn Bulldozer
BUMMER Stampede
SANDY Tan colored outfit
SANDYSH Tan colored outfit w/sunglasses
TIGSHRT Tiger shirt
TIGERSH Tiger shirt with shades
WHITE White suit
WHITE White suit Tony
WHITESH White suit Tony with shades
WHITESH White suit with shades

Unlockables

Montana investments - You can find these under the "Exotics" menu, and "Investments" option. The purpose of the investments is to provide upgrades to the game or to your player. You will need at least $1.5 million ($40 million for Montana Legal and $20 million for Montana Sports) to purchase most of these investments. The investments will help you level up faster.

Unlockables

Montana Defense Carry an extra weapon and maximum ammunition.
Montana Financial Launder all of your cash with 0% interest.
Montana Fitness All your henchmen gain 50% health.
Montana Holdings Fronts will cost you 10% less to purchase.
Montana Legal Visibility Events reduced by half (cops look the other way).
Montana Productions Unlocks all of Tony's clothing options in the cheat menu.
Montana Records Unlocks new music tracks and create a new playlist.
Montana Sports Maximum bets go up for all your gambling.

Easy money and drugs - If you've got busted and the cops took all ur money, or u spent it all on renovating your mansion, don't worry. First get a weapon, and find a drug dealer on the map (a drug dealer is a white dot on the map) and kill him. Make sure there is no gangs there, or they'll start a gang war. Take the yeyo and money, get a car and kill another dealer. Take his yeyo and cash and keep doing this. Once you have around 100grams of drugs sell them to a dealer but youll need to get the dealing metre high enough to sell, then kill him and take the stuff back, as well as his stuff. Keep doing this and you'll be rich again in mins!

Get stronger weapons earlier - Some characters like the assassin and enforcer have stronger weapons. For example, play as the enforcer. Call for one of Tony's cars. once it arrives, go to the weapons trunk. Place the grenade launcher in the trunk, tehn switch back to Tony. When you go to the weapons trunk, the grenade launcher will still be there. You can do the same thing with the assassin to get the PSG-1.

Killing gang members - Enable the "Bodog Stampede" code. Then, go after the gangs with it. The gun will have unlimited ammunition and enough armor to take them all out. If you run low on your vehicle's health, enable the "Repair vehicle" code. However, you must move your Hummer once in awhile or they will pull you out. This also is very useful when taking over the storehouses because of all the armor it has.

Shark chases naked girl - This is not a joke!!! enter the cheat to commit suicide(or kill yourself some other way. Then travel to south beach in any car and go west of south beach and towards the end of the beach there will be a very large stone dock, drive your vehicle down the dock at full speed until you hit the water after that there will be a short clip of a girl saying threatening words but being attacked by a shark.