D980-47A1 Start with more car ammo
DD80-47A1 Start with less car ammo
1A89-4FD1 Start with more handgun ammo
FD89-4FD1 Start with less handgun ammo
DD69-45A4 Infinite handgun ammo
DD67-C1A4 Car ammo worth nothing on pick-up
D467-C5D4 Car ammo worth more on pick-up
DD63-C0A4 Water worth nothing on pick-up
DF63-C9D4 Water worth more on pick-up
DD66-C064 Hand gun ammo worth nothing on pick-up
DD6A-C0D4 Food worth nothing on pick-up
C260-CF07 + C260-6F07 Infinite health while in the car
C9B6-450D Almost infinite health while out of the car (except when you eat 
poisonous food)
D480-4F61 Start with more fuel
DD6F-C004 Gas can worth nothing on pick-up
D46F-C064 Gas can worth more on pick-up
C285-C7D9 Infinite surface-to-air missles if you have at least one