Grand Theft Auto IV

Cellphone Cheats
Press up to bring your phone up, then press up again.
Health And Weapons: Call - GTA-555-0100
Weapons: Call - Gun-555-0150
Advanced Weapons: Call - GUN-555-0100
Health: Call - DOC-555-0100
Wanted Level Down: Call - COP-555-0100
Wanted Level Up: Call - COP-555-0150
Climate Change: Call - HOT-555-0100
Spawn Cognoscenti (mafia car): Call - CAR-555-0142
Spawn Sanchez (Dirt Bike): Call - MBK-555-0150
Spawn FBI Buffalo: Call - CAR-555-0100
Spawn Turismo: Call - CAR-555-0147
Spawn NRG900: Call - MBK-555-0100
Spawn Comet: Call - CAR-555-0175
Spawn SuperGT: Call - CAR-555-0168
Spawn Police Chopper: Call - FLY-555-0100
Spawn Jetmax (Boat): Call - WET-555-0100