All weapons:
To get all the weapons in the game press R2, R2, L1, R2, Left, Down, Right, Up, Left, Down, Right, Up.

Full Armor:
For full Armoor press R2, R2, L1, L2,Left, Down, Right, Up, Left, Down, Right, Up.

Full Health:
While playing, press R2, R2, L1, R1, Left, Down, Right, Up, Left, Down, Right, Up

Higher Wanted Level:
While playing, press R2, R2, L1, R2, Left, Right, Left, Right, Left, Right.

Lower Wanted Level:
While playing, press R2, R2, L1, R2, Up, Down, Up, Down, Up, Down.

More money:
While playing, press R2, R2, L1, L1, Left, Down, Right, Up, Left, Down, Rithg, Up

Speed up time:
While playing, press Circle, Circle, Circle, Square, Square, Square, Square, Square, L1, Triangle, Circle, Triangle.

Change outfit:
While playing, press Right, Down, Left, Up, L1, L2, Up, Left, Down, Right.

People fight each other:
While playing, press Down, Up, Left, Up, X, R1, R2, L2, L1.

All people hate you:
While playing, press Down, Up, Left, Up, X, R1, R2, L1, L2.

Crazy people:
While playing, press R2, R1, Triangle, X, L2, L1, Up, Down.

People fistfight each other:
While playing, press Right, R2, Circle, R1, L2, Down, L1, R1.

Improved car handling:
While playing, press R1, L1, R2, L1, Left, R1, R1, Triangle.

Blow up all cars:
While playing, press L2, R2, L1, R1, L2, R2, Triangle, Square, Circle, Triangle, L2, L1

Gore Mode:
While playing, press Square, L1, Circle, Down, L1, R1, Triangle, Right, L1, X.

Clear Weather:
While playing, press L1, L2, R1, R2, R2, R1, L2, Triangle.

Foggy Weather:
While playing, press L1, L2, R1, R2, R2, R1, L2, X.

Cloudy Weather:
While playing, press L1, L2, R1, R2, R2, R1, L2, Square.

Rainy Weather:
While playing, press L1, L2, R1, R2, R2, R1, L2, Circle.

Tank:
During the game press Circle six times, R1, L2, L1, Triangle, Circle, Triangle.
The tank will appear in front of you. This may be repeated as many times as
needed. Pressing circle will fire bullets.

Improved driving skills:
During the game press R1, L1, R2, L1, Left, R1, R1, Triangle. Press L3 or
R3 to jump while driving.

Increased gore:
During the game press Square, L1, Circle, Down, L1, R1, Triangle, Right, L1,
X.

Fog:
During the game press L1, L2, R1, R2, R2, R1, L2, X.

Overcast skies:
During the game press L1, L2, R1, R2, R2, R1, L2, Square.

Speed up time:
During the game press Circle, Circle, Circle, Square, Square, Square, Square,
Square, L1, Triangle, Circle, Triangle.

Change costumes:
During the game press Right, Down, Left, Up, L1, L2, Up, Left, Down, Right.

Pedestrians riot:
During the game press Down, Up, Left, Up, X, R1, R2, L2, L1.

Pedestrians attack:
During the game press Down, Up, Left, Up, X, R1, R2, L1, L2.

Pedestrians crazy:
During the game press R2, R1, Triangle, X, L2, L1, Up, Down.

Pedestrians fighting:
During the game press Right, R2, Circle, R1, L2, Down, L1, R1.

Police bribe:
Get 45 kills in vigilante mode to unlock a police bribe that is available at your
hideout.

Items:
These items are always available at your safe house, and regenerate. The
numbers indicated the number of hidden packages needed for that item.

10: Pistol
20: Uzi
30: Grenades
40: Shotgun
50: Armor
60: Molotov cocktail
70: AK47
80: Sniper Rifle
90: M16 or Flamethrower
100: Rocket Launcher.

Infinite run:
To continue to run at a fast pace without fatigue, just tap X instead of holding
it down. This helps when trying to give your character "exercise" so that he
can run for longer periods of time as well.

Gameshark Codes: Requires an American/NTSC Gameshark

(M) Must Be On ECB26E481445B464
Inf Health 4C21D436145625DD
Inf Armor 4C21D43A145625DD
Have Stick 3C21D4F81456E7A6
Have Handgun 3C21D40C1456E7A7
Inf Handgun Ammo 4C21D4141456E788 or 4C21D4181456E404
Have Uzi 3C21D4201456E7A8
Inf Uzi Ammo 4C21D7281456E788 or 4C21D72C1456E404
Have Shotgun 3C21D7341456E7A1
Inf Shotgun Ammo 4C21D7401456E788 or 4C21D7441456E404
Have AK47 3C21D7481456E7A2
Inf Ammo AK47 4C21D7501456E788 or 4C21D7541456E404
Have Big Gun 3C21D75C1456E7A3
Inf Ammo Heavy Machine Gun 4C21D7641456E788 or 4C21D7681456E404
Have Sniper Rifle 3C21D7701456E7A4
Inf Sniper Ammo 4C21D77C1456E404
Have R. Launcher 3C21D7841456E79D
Inf Rockets 4C21D7901456E788
Have Flamethrower 3C21D7981456E79E
Inf Flame Thrower 4C21D7A01456E788 or 4C21D7A41456E788
Have Molotovs 3C21D7AC1456E79F
Inf Molotovs 4C21D7B81456E788
Have Grenades 3C21D7C01456E7A0
Inf Grenades 4C21D7CC1456E788
All Weapons At Safehouse Exit the safehouse area until the pager goes off. 3CC887581456E781
Firemen Don't Get Out 1C8B3B9815F6E79D or 1C8B3B9C1456E7A5
Medics Don't Get Out 1C8B4A4815F6E79D or 1C8B4A4C1456E7A5
Never Wanted 1CBDACF815F6E79D or 1CBDACFC1456E7A5
No Damage From Collisions While Driving 1C8EB5C815F6E79D or 1C8EB5CC1456E7A5
Tons Of Cash 1CC8875017E9C70C or 1CC8875417E9C70C

Hints:

Tunnel under portland:
coming up onto the hill where you took the guys car and had it bombed if you go very carefully of the side of the cliff with almost no speed you car will stay on the beach below. folow the mountain side all teh way around the island untill you find flatbed train cars follow their tracks through a tunnell and midway thorugh there are hobos gathered around a secret package take the packagge brutally murder the hobos with no wittnesses or reprecussions. (you can also enter the tunnel the opposite way through the back of the supper mart)

Get to Staunton Island Early:
First activate the better driving code, the one where you can jump, then get a fast car and get to the broken bridge. In the corner where you cant go in, there is an opening and just drive through. (First get a fast Car) then build up speed and go all the way to then end where the bridge is broken and press L3 to jump and you should land on the other side. HAVE FUN

Steal Cars w/ alarms without Being Detected:
If you want to hack a car that has an alarm get in the car, and as soon as the alarm goes on, get out of the car and wait until it turns off then go back and steal it. (It also works if you bump the car with another one)

Advance to Staunton Island:
To advance from Portland to Staunton Island prematurely, go to the subway. The subway should be closed off at he bottom of the stairs. Take a car down the stairs and either crash it or park it so the door is right next to the subway door. When you open the door to get out you will step out and through the closed off gate. Then go down to to subway and get on the train. It will take you to Staunton Island. It is tricky to get your car to land near the gate but it is possible.

Get into the Prison on Level 2:
On level 2 Chose a really fast car (Farriar gt) (Cop Car) and drive as fast as possible down towards the bridge that leads to the prison, jump off the bridge at you top speed and veer towards the left, once your on top off the wall jump out of your car real quick before it falls into the river. Follow the wall around to the left, you will see stairs leading down into the prison. (This will definitely take a few try's ).

Get free shot gun:
Go to ammo-nation store and after you buy a gun walk up to the clerk and try to point the gun at him the best you can because you can target him, kill him, he shoots back so do it fast and after you kill him walk up to the counter and you will get his shotgun.

Secret Car:
In the first part of the game in Portland you can get one of the best cars, the Banshee, -here's how. Go to 8 Ball's auto yard. Right next door is an auto dealership. In side you will see a blue sports car that looks like a dodge viper, that's it, Bullets don't work on the glass so don't bother. Steal any of the cars in the parking lot and drive it into the glass, the glass will break and then just jump in the banshee and it is now at your disposal. Note: There is a secret pack near the car.

Easy Cash:
To get more cash just hit other cars with your car or mess up your car so bad that it explodes then you get extra cash.

My Whoopty:
If you have a nice car that is really beat up, just put it back into your garage, when you reopen the garage door the car will be in perfect condition.

The Hooker Cheat:
This works with hookers to get your health up. Drive up to a hooker the passenger side of the car and park next to her. She will bend over and talk to you. Stay there for a while and she will get in. Then take her to a alley or a hidden place. The car will begin to shake (wonder why) and your health will go up. You will lose 1 dollar per health point. After a while she'll get out repeat the process until you have full health. This only works when cops aren't chasing you and it doesn't work when driving cop cars, semi-trucks, buses, taxis or fire trucks. So just use a normal car.

Hooker Cheat Pt2:
For some real fun after she gets out get out to and kick her ass until she's dead. She drops all her money that she took from you. Hahahahahaha free money, fun and most of all free health when you do this.

Free Repairs:
To repair your car for free, go to your hideout and put your car in the garage. Leave the garage so the door closes. Enter the garage again and your car will be as good as new.

Note: This does not get rid of the cops. It only fixes the damage.

Easier Bosses:
An easy way to take out bosses is instead of fighting them get a good car before the fight like a Hum-V or a pickup truck and just RAM them. Then they get out after there car is screwed up and just run him over. Much easier then taking him on in shooting wars.

Drive By Shootings:
To do a drive by shooting hold R2 + Circle also L2 + Circle with R2 he will shoot right and L2 left. He will stick out his hand threw the window and shoot. This only works with the UZI though. Good way to take out bosses to pull up next to them and shoot the hell out of them

Be Careful:
When you kill people on the street they drop money. Try and kill Hookers and the old guys because they drop the most money. Don't attack gangsters there fellow gangsters will attack you to. This includes stealing the gangsters cars.

Flamethrower Location:
In Portland go to Hepburn Heights. Right next to the projects is a train platform. Jump on it and go to your left. Keep going until you reach the building that is really close to the track. You should see the flamethrower on the roof top. Jump over and get it and now you have a flamethrower.

Faster Taxis:
To have faster taxis you must have 100 fares in cab game-mode. The taxis are at Borgnine in Harwood/Portland.

Police Bribe:
To get the police bribe you must have 45 kills in the vigilante game mode. The bribe is in your hideout.