Grand Theft Auto IV uses in-game phone dial codes for cheats. No external "type cheat" menu. Here's how to use them properly:
| Effect | Phone Number | Notes |
|---|---|---|
| Full Health & Armor | 362-555-0100 | Repairs vehicle if inside. |
| Full Health, Armor, Ammo | 482-555-0100 | Refills all weapons. |
| Weapons Tier 1 (Base) | 486-555-0150 | Bat, Pistol, Shotgun, SMG, Rifle, RPG, Grenades, Molotovs. |
| Weapons Tier 2 (Advanced) | 486-555-0100 | Knife, Deagle, Combat Shotgun, MP5, Carbine, Sniper, RPG, Grenades. |
| Remove Wanted Level | 267-555-0100 | Instant 0 stars. |
| Raise Wanted Level (x1) | 267-555-0150 | Adds 1 star (max 6). |
| Change Weather | 468-555-0100 | Cycles Sunny → Cloudy → Rain → Thunder → Snow → Fog. |
| Spawn Annihilator (Heli) | 359-555-0100 | Requires space. |
| Spawn NRG900 (Bike) | 625-555-0100 | |
| Spawn SuperGT (Car) | 227-555-0168 | |
| Spawn Cognoscenti (Limo) | 227-555-0142 | |
| Spawn Jetmax (Boat) | 938-555-0100 | Water only. |
Enjoy the chaos responsibly. Save before cheating!