Grand Theft Auto IV Cheats

While playing the game, press Up to display Niko's cell phone. Press Up again to access the keypad. Then, enter one of the following codes to activate the corresponding cheat function. Once a code has been entered correctly, a new "Cheats" menu option will be available on your phone, below "Options", where you can access the cheats without having to enter the phone number again. Note: Do not save the game after enabling a code to avoid unforeseen problems. Enabling some cheats will prevent the indicated achievement(s) from being earned. You can usually only spawn one vehicle at a time. Any previously spawned vehicles will disappear. However, if you spawn a vehicle, save the game, and load again, you can spawn another one and your original will not disappear. You must have it in your parking space in front of a safehouse or it will be gone before you have a chance to spawn another.

Full health and armor

Dial "3625550100" on the cell phone. If you enter this code while in a vehicle, it will also repair it. Note: This phone number translates to "DOC-555-0100". This code prevents the "Cleaned The Mean Streets", "Finish Him", "One Man Army", and "Walk Free" achievements from being earned.
Full health, armor, and ammunition

Dial "4825550100" on the cell phone. If you enter this code while in a vehicle, it will also repair it. Note: This phone number translates to "GTA-555-0100". This code prevents the "Cleaned The Mean Streets" achievement from being earned.
Weapons tier 1

Dial "4865550100" on the cell phone. This will unlock the baseball bat, handgun, shotgun, MP5, M4, sniper rifle, RPG, and grenades. Note: This phone number translates to "GUN-555-0150". This code prevents the "Cleaned The Mean Streets" achievement from being earned.
Weapons tier 2

Dial "4865550150" on the cell phone. This will unlock the knife, Molotov cocktails, handgun, shotgun, Uzi, AK47, sniper rifle, and RPG. Note: This phone number translates to "GUN-555-0100". This code prevents the "Cleaned The Mean Streets" achievement from being earned.
Remove Niko's wanted level

Dial "2675550100" on the cell phone. Note: This phone number translates to "COP-555-0100". This code prevents the "One Man Army" and "Walk Free" achievements from being earned.
Add one star to Niko's wanted level

Dial "2675550150" on the cell phone. Note: This phone number translates to "COP-555-0150".
Spawn... 

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First, you go to the gun shop, then you must kill the man who owns it. He has a pistol, when he is dead , go up to his dead body and pick up his gun, however, security guards come when he dies after about 15 seconds so you might want to make a quick escape!!! Thx plzzzz thumbs up now enjoy your time with a pistol!!! ;)

press up on the d pad to get out your cell phone press up again to enter the keypad, enter the number and call it.

Password:	Effect:
482 555 0100	health, armor, and good weapons
267 555 0100	remove wanted level
267 555 0150	raise wanted level
468 555 0100	change weather
359 555 0100	spawn annilator police hellicopter
227 555 0147	spawn a turismo
227 555 0100	spawn a fbi buffalo
227 555 0175	spawn a comet

The fastest car on the game is hidden behind the old mansion at the top right corner of alderney. I pretty sure its at the back of the house. Good luck!!

While playing the game, press Up to display Niko's cell phone. Press Up again to access the keypad. Then, enter one of the following codes to activate the corresponding cheat function. Once a code has been entered correctly, a new "Cheats" menu option will be available on your phone, below "Options", where you can access the cheats without having to enter the phone number again. Note: Do not save the game after enabling a code to avoid unforeseen problems. Enabling some cheats will prevent the indicated achievement(s) from being earned. You can usually only spawn one vehicle at a time. Any previously spawned vehicles will disappear. However, if you spawn a vehicle, save the game, and load again, you can spawn another one and your original will not disappear. You must have it in your parking space in front of a safehouse or it will be gone before you have a chance to spawn another.

Full health and armor

Dial "3625550100" on the cell phone. If you enter this code while in a vehicle, it will also repair it. Note: This phone number translates to "DOC-555-0100". This code prevents the "Cleaned The Mean Streets", "Finish Him", "One Man Army", and "Walk Free" achievements from being earned.
Full health, armor, and ammunition

Dial "4825550100" on the cell phone. If you enter this code while in a vehicle, it will also repair it. Note: This phone number translates to "GTA-555-0100". This code prevents the "Cleaned The Mean Streets" achievement from being earned.
Weapons tier 1

Dial "4865550100" on the cell phone. This will unlock the baseball bat, handgun, shotgun, MP5, M4, sniper rifle, RPG, and grenades. Note: This phone number translates to "GUN-555-0150". This code prevents the "Cleaned The Mean Streets" achievement from being earned.
Weapons tier 2

Dial "4865550150" on the cell phone. This will unlock the knife, Molotov cocktails, handgun, shotgun, Uzi, AK47, sniper rifle, and RPG. Note: This phone number translates to "GUN-555-0100". This code prevents the "Cleaned The Mean Streets" achievement from being earned.
Remove Niko's wanted level

Dial "2675550100" on the cell phone. Note: This phone number translates to "COP-555-0100". This code prevents the "One Man Army" and "Walk Free" achievements from being earned.
Add one star to Niko's wanted level

Dial "2675550150" on the cell phone. Note: This phone number translates to "COP-555-0150".
Spawn Annihilator police helicopter

Dial "3595550100" on the cell phone. The... 

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To enter a cheat code, bring up your phone by pressing Up, then Up again to access the keypad. (You must first do a couple of quests for Roman to get a phone this works on). Once a code has been entered correctly a new Cheats menu selection is available on your phone, below Options, where you can access the cheats without having to enter the phone number every time. NOTE! Some achievements will be blocked when using the cheats.

Get Full Health and Weapons:
Call GTA-555-0100 (482-555-0100) on your phone. (Blocks the Cleaned the Mean Streets achievement)

Get Weapons:
Call GUN-555-0150 (486-555-0150) on your phone. (Blocks the Cleaned the Mean Streets achievement)

Get Advanced Weapons:
Call GUN-555-0100 (486-555-0100) on your phone. (Blocks the Cleaned the Mean Streets achievement)

Get Full Health:
Call DOC-555-0100 (362-555-0100) on your phone. (Blocks the Cleaned the Mean Streets, Finish Him, One Man Army & Walk Free achievements)

Wanted Level Down:
Call COP-555-0100 (267-555-0100) on your phone. (Blocks the One Man Army & Mean Streets achievements)

Wanted Level Up:
Call COP-555-0150 (267-555-0150) on your phone.

Change Weather:
Call HOT-555-0100 (468-555-0100) on your phone.

Spawn Cognoscenti:
Call CAR-555-0142 (227-555-0142) on your phone.

Spawn FBI Buffalo:
Call CAR-555-0100 (227-555-0100) on your phone.

Spawn Turismo:
Call CAR-555-0147 (227-555-0147) on your phone.

Spawn Comet:
Call CAR-555-0175 (227-555-0175) on your phone.

Spawn SuperGT:
Call CAR-555-0168 (227-555-0168) on your phone.

Spawn NRG900:
Call MBK-555-0100 (625-555-0100) on your phone.

Spawn Sanchez:
Call MBK-555-0150 (625-555-0150) on your phone.

Spawn Police Chopper:
Call FLY-555-0100 (359-555-0100) on your phone. (Blocks the One Man Army & Walk Free achievements)

Spawn Jetmax:
Call WET-555-0100 (938-555-0100) on your phone.

100%:
To get 100% you have to complete the following:
* Complete all Main Missions.
* Complete all 10 Drug Deliveries.
* Complete all 10 Races.
* Complete all 10 Assassination missions.
* Complete all 30 car thefts.
* Collect all 10 cars for the Exotic Exports mission.
* Unlock all five friend's special abilities and complete the activities with Little Jacob, Brucie and Packie.
* Beat the computer or an online friend in all activities.
* Find all Random Characters and complete their missions (except for Jeff, Cherise, Clarence & Ivan).
* Complete all 30 Most Wanted Missions.
* Complete all 20 Vigilante Missions.
*... 

continue →

Easy money
Go to an ATM, then cause a traffic jam to the area. Wait for someone to take money from the ATM, then kill him or her. Make sure to block any nearby roads so the ambulance cannot get to the murdered victim. Take the money they dropped on the ground. Then, run a short distance away, and go back. The money should have respawned on the ground. You can repeat this as many times as desired. You can also kill more people taking their money from the ATM to increase the amount of money that respawns.

Repairing the engine
If the vehicle you are driving breaks down and the engine will not start, call any number from your phone book, and your engine should start again.

Get a Statue of Liberty T-shirt
Go to the statue of liberty and walk up to the second level. Walk through the door (it doesn't swing open, just go through it) and the game will load for a second and you will walk out with a new t-shirt with the statue of liberty on it.

Mr. tasty + GTA Theme Cheat
When inside a Mr. Tasty Ice Cream truck, one of the the songs the truck plays is called the GTA Theme, in a cycle order it is usually played after Flight of the Bumblebee. While playing the song, call ZiT, and a text message will confirm telling you the name of the song. As soon as the message is answered, a Cheat Activated confirmation will appear, and the cheat will appear in the Cheat section in your phone.

Effects: Cheat gives you full healith and Body Armor

if your trying to steal a car for Brucie or Stevie but theres a copper around and you dont want to risk a wanted level go up to any car with a person inside and run up to the door and press B to push it. this counts as damage to the car and the person in the car should get out and try to beat you up. run and stand a short distance away from the cop so that the driver has enough time to run let the driver hit you and the cop will come to arrest him. the driver should run away, thus leading the cop away to leave you alone with the car. you can also use this method to assasinate people or any other reason you have.

If you have unlocked the internet cafe named "Tw@t" One is in Broker near "Perestroika" the Russian cabaret you may have encountered. Go on to the computer and log on. Then in the adress type:
www.whattheydonotwantyoutoknow.com
It is very long but it is worth it, it tells you the location of everything with a pinpoint map with small red dots to tell you where it is.

The fastest car on the game is hidden behind the old mansion at the top right corner of alderney. I pretty sure its at the back of the house. Good luck!! If you would like me to post anymore cheats or anything else just ask.

First escort yourself to the helicopter tours. Getting a taxi will save time. Once you arrive there go to where the helicopters are and you will see that there are NO security guards. Now all you have to do is counter the the people by pushing them then tappping A to dodge as soon as the person throws a punch. Stick to the men as the women punches are alot quicker. After they throw the punch repeatedly press the B button and you will see that he does a combo. Replacing B as X does a different combo i.e kicks. Another thing is that if you run low on health as you exit the Helicopter Tours there is a hotdog stall. It is better to get one before you enter. Good Luck!! :D

enter on keypad in mobile

Code:	Effect:
482-555-0100	helth and armour and weaponds

First, you'll have to have access to Happiness Island. Once you're able to go there legally, find the Helicopter Tours (which is directly east of Happiness Island) and steal a helicopter. Fly to Happiness Island and over the Statue of Liberty, then jump out of the helicopter at the statue's feet. You should land on the topmost tier of the statue, which is basically a square platform with a door in the center of each side. Run around the platform until you see a door with a plaque on either side of it that reads, "No Hidden Content Here." It may seem like you cannot go through the door, but you can-- it doesn't open, you simply walk THROUGH the door. Inside, you'll find an empty room with a tall ladder. Climb it, and when you reach the top, look up; there is a gigantic beating heart, held in place by chains.

To enter a cheat code, bring up your phone by pressing Up, then Up again to access the keypad. (You must first do a couple of quests for Roman to get a phone this works on). Once a code has been entered correctly a new Cheats menu selection is available on your phone, below Options, where you can access the cheats without having to enter the phone number every time. NOTE! Some achievements will be blocked when using the cheats.

Get Full Health and Weapons:

Call GTA-555-0100 (482-555-0100) on your phone. (Blocks the Cleaned the Mean Streets achievement)

Get Weapons:

Call GUN-555-0150 (486-555-0150) on your phone. (Blocks the Cleaned the Mean Streets achievement)

Get Advanced Weapons:

Call GUN-555-0100 (486-555-0100) on your phone. (Blocks the Cleaned the Mean Streets achievement)

Get Full Health:

Call DOC-555-0100 (362-555-0100) on your phone. (Blocks the Cleaned the Mean Streets, Finish Him, One Man Army & Walk Free achievements)

Wanted Level Down:

Call COP-555-0100 (267-555-0100) on your phone. (Blocks the One Man Army & Mean Streets achievements)

Wanted Level Up:

Call COP-555-0150 (267-555-0150) on your phone.

Change Weather:

Call HOT-555-0100 (468-555-0100) on your phone.

Spawn Cognoscenti:

Call CAR-555-0142 (227-555-0142) on your phone.

Spawn FBI Buffalo:

Call CAR-555-0100 (227-555-0100) on your phone.

Spawn Turismo:

Call CAR-555-0147 (227-555-0147) on your phone.

Spawn Comet:

Call CAR-555-0175 (227-555-0175) on your phone.

Spawn SuperGT:

Call CAR-555-0168 (227-555-0168) on your phone.

Spawn NRG900:

Call MBK-555-0100 (625-555-0100) on your phone.

Spawn Sanchez:

Call MBK-555-0150 (625-555-0150) on your phone.

Spawn Police Chopper:

Call FLY-555-0100 (359-555-0100) on your phone. (Blocks the One Man Army & Walk Free achievements)

Spawn Jetmax:

Call WET-555-0100 (938-555-0100) on your phone.

100%:

To get 100% you have to complete the following:

* Complete all Main Missions.
* Complete all 10 Drug Deliveries.
* Complete all 10 Races.
* Complete all 10 Assassination missions.
* Complete all 30 car thefts.
* Collect all 10 cars for the Exotic Exports mission.
* Unlock all five friend's special abilities and complete the activities with Little Jacob, Brucie and Packie.
* Beat the computer or an online friend in all activities.
* Find all Random Characters and complete their missions (except for Jeff, Cherise, Clarence & Ivan).
* Complete all 30 Most Wanted Missions.
*... 

continue →

Enter the following password into the in-game computers.

Password:	Effect:
www.whattheydonotwantyoutoknow.com	Weapon, health, armor, vehicle, pigeon, ramp/stunt, and entertainment locations

wen you enter a car and try to start it but sometimes the car wont start, all you have to do is call the cops(911) and the car will start, just besure to get out of there before the cops show up.

In the beginning of the game, the southwestern bridge will be blocked off by cops. There should be a subway track to the side, underneath the bridge.

Drive your car off the rails and onto the tracks and continue driving until you are inside the tunnel. You should be 6 star wanted at this point. camp out in the tunnel for as long as needed.

After acquiring the phone from Playboy X, go to the nearest Internet cafe. Buy all of the ringtones and themes from the ringtones site. Log out of the computer and you will notice that you only paid $100 for all ringtones and themes.

Teamplayer: Kill five players who are not in your team in any ranked multiplayer team game. - 10G

Cut Your Teeth: Earn a personal rank promotion in multiplayer. - 5G

Wanted: Achieve the highest personal rank in multiplayer. - 20G

Join The Midnight Club: Win a ranked multiplayer race without damaging your vehicle too much and with damage enabled. - 10G

Taking It For the Team: Be on the winning team in all ranked multiplayer team games. - 10G

Top The Midnight Club: Come first in 20 different ranked standard multiplayer races. - 20G

Top Of The Food Chain: Kill 20 players with a pistol in a ranked multiplayer deathmatch. - 10G

Auf Wiedersehen Petrovic: Win all ranked multiplayer variations, all races and "Cops 'n Crooks", as both sides. - 30G

Fly The Co-op: Beat Rockstar's times in ranked versions of "Deal Breaker," "Hangman's NOOSE" and "Bomb da Base II". - 15G

Let Sleeping Rockstars Lie: Kill a Rockstar developer in a ranked multiplayer match. - 10G
(you'll just have to try and find one of the developers online if you want to get this achievement)

This really does work and it only took me one try to do it!!! All u have to do is spawn an annhilator go to the second tallest building in liberty city. Once on spawn a motorcycle half inside the building half out. Get on the motorcycle and drive barley inside the building then spawn a car any car. Then drive off the side and u should land under the city. Sometimes it may appear u back on the street though but that usually only happens when ur on foot or an a motorcycle. so good Luck!!

If You Go To Moheagan Ave. in Firefly Island There is a swingset. If you put a car in front of it your car will be launched into the air. Often Flying Great distances.

Password:	Effect:
7195550671	black and yellow camaro
8255556901	lamborghini

Every time you go into a police car, you will get a free combat shotgun, or 5 shots for one you already may have.(not to be confused with the Pump Shot Gun.)

so you go to the building with the lights(not the