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