Grand Theft Auto IV

482-555-0100 - Give Niko health and weapons.
362-555-0100 - Give Niko health and armour. Blocks the achievement "Finish Him."
486-555-0100 - Baseball Bat, Grenades, Combat Pistol, Combat Shotgun, SMG, Carbine Rifle, Combat Sniper, RPG.
486-555-0150 - Knife, Molotovs, Pistol, Pump Shotgun, Micro SMG, Assault Rifle, Combat Sniper, RPG.
267-555-0100 - Remove any police wanted level. Blocks the achievement "Walked free."
267-555-0150 - Add one star to Niko's wanted level.
468-555-0100 - Select from eight different weather types.
359-555-0100 - Spawn an Annihilator helicopter in front of Niko.
938-555-0100 - Spawn a Jetmax boat in front of Niko.
625-555-0100 - Spawn an NRG-900 bike in front of Niko.
625-555-0150 - Spawn a Sanchez bike in front of Niko.
227-555-0100 - Spawn an FIB Buffalo in front of Niko.
227-555-0175 - Spawn a Comet in front of Niko.
227-555-0147 - Spawn a Turismo in front of Niko.
227-555-0142 - Spawn a Cognoscenti in front of Niko.
227-555-0168 - Spawn a Super GT in front of Niko.

The Lost and Damned

245-555-0100 - Spawn an Innovation motorcycle in front of Johnny.
245-555-0150 - Spawn a Hexer motorcycle in front of Johnny.
245-555-0199 - Spawn a Hakuchou Custom motorcycle in front of Johnny.
245-555-0125 - Spawn a Double T Custom motorcycle in front of Johnny.
826-555-0150 - Spawn a Gang Burrito in front of Johnny.
826-555-0100 - Spawn a Slamvan in front of Johnny.

The Ballad of Gay Tony

938-555-0150 - Spawn a Floater boat in front of Luis.
625-555-0200 - Spawn an Akuma bike in front of Luis.
625-555-3273 - Spawn a Vader bike in front of Luis.
272-555-8265 - Spawn an APC in front of Luis.
359-555-2899 - Spawn a Buzzard helicopter in front of Luis.
227-555-9666 - Spawn a Bullet GT in front of Luis.
359-555-7272 - Give Luis a parachute.
276-555-2666 - Makes Luis' punches explosive.
486-555-2526 - Makes the sniper rifles fire explosive rounds.