Grand Theft Auto 3

All Weapons
During gameplay press Black, Black, L, Black, Left, Down, Right, Up, Left, Down, Right, Up

Full Health
During gameplay press Black, Black, L, R, Left, Down, Right, Up, Left, Down, Right, Up

Full Armor
During gameplay press Black, Black, L, White, Left, Down, Right, Up, Left, Down, Right, Up

Higher Wanted Level
During gameplay press Black, Black, L, Black, Left, Right, Left, Right, Left, Right.

Lower Wanted Level
During gameplay press Black, Black, L, Black, Up, Down, Up, Down, Up, Down.

More money
During gameplay press Black, Black, L, L, Left, Down, Right, Up, Left, Down, Rithg, Up

Tank
During gameplay press B, B, B, B, B, B, R, White, L, Y, B, Y.

Speed up time
During gameplay press B, B, B, X, X, X, X, X, L, Y, B, Y.

Change outfit
During gameplay press Right, Down, Left, Up, L, White, Up, Left, Down, Right.

People Fight
During gameplay press Down, Up, Left, Up, A, R, Black, White, L.

All people hate you
During gameplay press Down, Up, Left, Up, A, R, Black, L, White.

Crazy people
During gameplay press Black, R, Y, A, White, L, Up, Down.

People fistfight each other
During gameplay press Right, Black, B, R, White, Down, L, R.

Improved car handling
During gameplay press R, L, Black, L, Left, R, R, Y.

Blow up all cars
During gameplay press White, Black, L, R, White, Black, Y, X, B, Y, White, L

Gore Mode
During gameplay press X, L, B, Down, L, R, Y, Right, L, A.

Clear Weather
During gameplay press L, White, R, Black, Black, R, White, Y.

Cloudy Weather
During gameplay press L, White, R, Black, Black, R, White, X.

Rainy Weather
During gameplay press L, White, R, Black, Black, R, White, B.

Flying Cars
To fly any car that is fast enough (just about any car in the game), enter the Dodo cheat, Right, Black, B, R, White, Down, L, R during gameplay. Use it to fly over the bridges, or shoot someone elses car. When they run away they lose control on turns and do rolls. Very funny. Enter the code again to take it off if your tired of wrecking your cars. Note: Fly your car like the dodo, if you press up to hard, your car falls.

How To Get To Stauton Island Before getting all the mafia missions
You must turn on the dodo cheat. Once you have the dodo cheat on, get a pretty fast car, like the police car or the car by the 8-ball shop. then, go to the bridge and get past the orange cone by slowly going through the right side. Once youre in, get in the middle of the bridge, and get ready to take off! Slam the accelerator and press up on the analog so the nose goes down, once you get to the very edge, where the brigde breaks, press down slightly so the nose goes up, you should make it all the way to the next side. Stauton Island is Awesome!!

Slow and fast gameplay
Slow - Press Y Up Right Down X R Black
Fast - Press Y Up Right Down X L White

Dodo Car
Press Right, Black, B, R, White, Down, L, R during gameplay. A message will confirm the code entry. Hint on Flying the Dodo car: Take the Dodo Car to the very end of the runway (or empty highway, If possible). Turn it around so its facing away from the edge of the road/runway. Hold A to build up momentum, while holding Up. Once you get enough speed, quickly hold Down. Once airborne, use normal controls to level out the car. Note: The dodo car is very difficult to fly (because there are no wings). This code may work with any car.

Indestructible/ Invincible Car
This takes a while, but is definitely worth it. On Portland, after you talk to El Burro of The Diablos, go the the line to start racing, but first you must line up tanks along the whole road. (For tanks push circle 6 times, then R, White, L, Y, B, Y. Then, when one of the carshits it and flips over, you must flip it back over and bring it to your garage. That car will then be invincible.

Increased Gore
Press X, L, B, Down, L, R, Y, Right, L, A during gameplay. No confirmation message will appear on the screen. With this code you can shoot off pedestrians' arms, legs, and heads with some weapons such as the sniper rifle, assault rifle, or explosives with an increase in the overall amount of bloodleft behind. Note: Saving the game might make the effects of this code permanent.

Extinguish your car (without the fire truck)
Just Simply Press Black(2x), L, R, Left, Down, Right, Up, Left, Down, Right, Up while inside your vehicle. If done fast enough your car will be extinguished. Note: The cheat above is the "Full Health Cheat".

Flying Tank
Many people have wanted to fly but you think that you can't because you are on Portland or Staunton Island. Here's a way to Fly. Put in the code for the tank.(Tip:Don't use any fast car they're to fast they keep spinning out)after the tank appears put in the Dodo car code. Now the tank is not fast enough so you will have to turn the cannon around with the right joy-stick. When the cannon is facing behind you, get on a long straight road. Start driving and firing the cannon behind you while you drive. The shots fired will give you the speed you need. You won't need to pull up, the tank will pull up on its own. When you are in the air you need to keep firing to keep up enough speed. Now your fling you can fly as far as you want just get the hang of turning first.

Foggy Weather
press L, White, R, Black, Black, R, White, A.

Unlockables

Hidden Package Bonuses
10 packages found=pistol at Hideout
20 packages found=Uzi at Hideout
30 packages found=Grenades at Hideout
40 packages found=shotgun at Hideout
50 packages found=armor at Hideout
60 packages found=molotovs at Hideout
70 packages found=ak47 at Hideout
80 packages found=sniper rifle at Hideout

Hidden Packages
When you see the ROCKSTER billboard, there are usually some items nearby. On the 3 islands, hidden packages are usually found near the billboards. For every 10 hidden packages you find, you gain access to a new weapon located at your hideout, free of charge.

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

Bonus Buggy
Successfully complete the Mafia missions to unlock the Buggy. Return to the Portland and go to the Diablo parking lot (where the mission phone is located) between 19:00 to 24:00 to find the same Buggy glimpsed in Joey's garage from the Mafia mission. It will appear in the same location & change color each time.