Grand Theft Auto 3 Cheats

Type the follwing below in pause menu to enable the cheats

Park one car in a garage then bring the second one. The door will not
open. Then get out of the car and get to the door of the Garage and the
door will open. Enter in the first car you parked in the Garage. Bring
it backwards so that half part is in the Garage and half outside. get
out and enter the second car and put it in the Garage the door will not
close. There you have it to cars in one garage. 

Just got a sweet car?Gonna go crusie? But some a**hole just slammed into you.Take it back to your house,(save game area)park it in the garage, (if you have room)get out, let the garage door close, and go back in.Good as new!

P.S Dosen't work when your on missons that your not really allowed to get out of the car.

Type this while in the game

GIVEUSATANK
(Type anywhere while playing)

These cheats are self explaining.

Insert the cheats during normal gameplay.

GUNSGUNSGUNS - Get All weapons
IFIWEREARICHMAN - More $$
GESUNDHEIT - Max health
MOREPOLICEPLEASE - Max wanted level
NOPOLICEPLEASE - Less wanted level
GIVEUSATANK - Get tank
BANGBANGBANG - Destroy cars
ILIKEDRESSINGUP - New outfit
ITSALLGOINGMAAAD - Crazy People
NOBODYLIKESME - People Hate you
WEAPONSFORALL - People fight everyone
TIMEFLIESWHENYOU - Time moves faster
BOOOOORING - Gameplay moves faster
TURTOISE - Max armor
SKINCANCERFORME - Weather clears
ILIKESCOTLAND - Weather is cloudy
ILOVESCOTLAND - Weather is rainy
PEASOUP - Weather is foggy
MADWEATHER - Time sped up
ANICESETOFWHEELS - transparent car mode
CHITTYCHITTYBB - Low Car Gravity
CORNERSLIKEMAD - Instant turns
NASTYLIMBSCHEAT - gore mode

While playing a game, enter one of the following codes to activate the corresponding cheat function. If you entered the code correctly, the message "Cheat Activated" will appear. Note: Codes can be entered multiple times. For example, keep typing "gunsgunsguns" and you will have more ammunition as well as all guns. The "giveusatank" code can only be activated four times.
Result
Cheat Code
All weapons gunsgunsguns
Extra money ifiwerearichman
Full health gesundheit
Higher wanted level morepoliceplease
Lower wanted level nopoliceplease
Tank (Rhino) giveusatank
Destroy all cars bangbangbang
Change costume ilikedressingup
Crazy pedestrians itsallgoingmaaad
All pedestrians attack you nobodylikesme
Pedestrians fight each other weaponsforall
Time advances quicker timeflieswhenyou
Very fast game clock madweather
Faster game play boooooring
100% armor turtoise
Clear weather skincancerforme
Cloudy weather ilikescotland
Rainy weather ilovescotland
Foggy weather peasoup
Invisible cars; wheels only anicesetofwheels
Flying car chittychittybb
Improved car handling cornerslikemad
Gore mode nastylimbscheat
-From: MLarkin@houston.deepwater.com, josedawg@hotmail.com, d_dot_wu@hotmail.com, fieldcar@hotmail.com, tiggasimb@msn.com, and many others

Type in normal gameplay

Type ILOVESCOTLAND on the keyboard during gameplay.

Go to the multi-story parking lot and get in one of
the cars. It does not matter what car you get in, as long as it
is from the parking lot. Get in the car and drive to the top.
Drive it onto the ramp. Do not go over the edge. Get out of the
car and get on top of it. As soon as you get on the roof of the
car, it should disappear and so should all the cars from the parking
lot.
Strategy: by Morgan Bennet