use the cell phone
enter a cheat.
Gttyyy
You can enter in cheat codes in the extras menu.
on nico's phone enter 3595550100
You have to look up GTA 4 cheat codes then enter the number on your phone in the game p.s. (Hope this helped)
You will lose your PSN account!!
Yes, there are nine additional cheats.
for GTA 4 there is a cheat to spawn a "Annihilator" and its 3595550100 you enter it buy phone and dialing the number provided (cheats for gta 4 are universal for all platforms)
sorry mate no, the only cheat code for gta are for the offline story mode.
In 1-4 you enter the codes in Aeops Owl Emporium and the 5-7 you enter codes in Madam Malkin's. Both are located in Diagon Alley.
No, there is not an armored truck cheat for GTA IV.
there is no cheat for it it cant be get in gta 3 but from gta 4 it will be availaible