Postal (Demo) [cheats] Type one of the following codes during game play to activate the corresponding cheat function. 

Effect Code 

100% health------------------------healthful 
Less damage------------------------thickskin 
50 more shotgun shells-------------carrymore 
100% health------------------------healthful 
Spray cannon-----------------------shellfest 
All items, full health-------------gimmedat 
Missiles and grenades-------------- dawholeenchilada 
Shotgun shells---------------------breakyosak 
Reduce character size--------------myteamouse 
Spray cannon-----------------------shellfest 
No clipping------------------------suckdeeznuts 
Invincibility----------------------iamsolame 
50-100 shot gun shells-------------shotgun 
Spray cannon-----------------------thebestgun 
Grenade and fire extinguisher------ lobitfar 
Missiles, heatseekers--------------titanii 
Fireball gun-----------------------sternomat 
Mine field bombs-------------------crotchbomb 
200 flame thrower rounds-----------flamenstein 
200 flame thrower rounds-----------firehurler 
Health, Kevlar vest----------------chtpos 
Return from dead-------------------hesstillgood 
Grenades, missiles, heatseekers----explodarama 
Level skip-------------------------theresnoplacelikeoz 
200 flame thrower rounds-----------firehurler 
Revive character-------------------chthom 
Health, Kevlar vest----------------chtpos 

Unlimited demo time
Set Gamestate Demotime 9999
-from Tom