http://www.computerandvideogames.com/article.php?id=187854

This all feels a bit 1996, when we only used the internet for tips and codes, but GTA IV's out tomorrow and we've got all the cheats right here!

If you don't fancy tackling the missions like a real man when you get your hands on it, or, like our mentalist tech menager, you quite like the idea of spawning a chopper and MURDERING innocent civilians with its chaingun, then these codes are for you.

To kick these off, all you need to do is dial the appropriate numbers with Niko's mobile.

1, Health And Weapons - GTA-555-0100
2, Weapons - GUN-555-0150
3, Advanced Weapons - GUN-555-0100
4, Health - DOC-555-0100
5, Wanted Level Down - COP-555-0100
6, Wanted Level Up - COP-555-0150
7, Climate Change - HOT-555-0100
8, Spawn Cognoscenti (Mafia Car) - CAR-555-0142
9, Spawn Sanchez (Dirt Bike) - MBK-555-0150
10, Spawn FBI Buffalo - CAR-555-0100
11, Spawn Turismo - CAR-555-0147
12, Spawn NRG900 - MBK-555-0100
13, Spawn Comet - CAR-555-0175
14, Spawn SuperGT - CAR-555-0168
15, Spawn Police Chopper - FLY-555-0100
16, Spawn Jetmax (Boat) - WET-555-0100

This is the only Cheat I'll ever need:

Thanks for finding the cheats elnino334, as a big party game its always great to have these around.

^ no problem. I am sure these will be up in gamefaqs soon.

THE CHEAT!

damn what happend to the classic: R2, L2, R1, L1, left down right up left down right up square?

Awesome, the only I actually ever had fun with GTAIII was through massive cheating. This will do nicely to add some more playtime for me. ^^

Thanx I´ll try out the helicopter spawn right now :)... can`t resist them helicopters...