Cheats for "Grand Theft Auto IV" include entering 486-555-0100 on Niko's cell phone for advanced weapons, 468-555-0100 to change the weather, and 267-555-0100 to remove his wanted level. After the player enters a cheat correctly, the screen displays a message saying "cheat activated."

Advanced weapons cheats help players acquire a baseball bat, combat pistol, carbine rifle and combat shotgun. The code 486-555-0150 is a poor weapons cheat. Weapons provided by that cheat include a knife, pump shotgun, assault rifle and combat sniper.

The game has eight different weather types that can be chosen using the weather cheat. The cheat to remove the wanted level works no matter how high Niko's wanted level is, but it blocks the "Walked Free" achievement.