GTA 4 Cheats

Use Niko's phone to enter cheat code

1.  Health and weapon 
482-555-0100
2.  Health and Armour
362-555-0100
3.  Weapon (Basic)
486-555-0150
4.  Weapon (Advance)
486-555-0100
5.  Increase wanted level
267-555-0150
6. Decrease wanted level
267-555-0100
7.  Weather change    
468-555-0100
8.  Get Jetmax
938-555-0100
9.  Get Annihilator     
359-555-0100
10.  Get NRG-900
625-555-0100 
11. Get Sanchez
625-555-0150
12.  Get FIB buffalo
227-555-0100
13.  Get Comet
227-555-0175
14.  Get Turismo
227-555-0147
15.  Get Cognoscenti
227-555-0142