I am not sure about the most powerful, but these might be of use:
Some GTA IV cheat codes:
Health and armour: 362-555-0100
Health and weaponry: 482-555-0100
Advanced weaponry: 486-555-0100
Lose wanted levels: 267-555-0100
Change weather: 468-555-0100
Annihilator: 359-555-0100
NRG-900: 625-555-0100
Sanchez: 625-555-0150
FIB Buffalo: 227-555-0100
Super GT: 227-555-0168
Jetmax speed boat: 938-555-0100
how to open a bridge on grand theft auto iv cheats
yes tipe grand theft auto cheats ps2
the cheats are
Fly
No but they are same as gta sa
yes
one of them is monstertruck
www.cheatplanet.com
no.
The best website to find cheats for Grand Theft Auto 4 is without a doubt IGN, they have a comprehensive selection of cheats for many games including Grand Theft Auto 4. Cheats for Grand Theft Auto 4 can also be found in most gaming magazines.
no, sorry
yes