Grand Theft Auto IV Hints

At the start of the game drive north to Bohan, the island where you get a safehouse after your first one is burned down. At the very northern most road there is a point where the subway train tracks go from an elevated line to underground. Drive a car from the road onto the tracks and head into the tunnel. Eventually you'll cross the river and end up on the locked island of Algonquin and receive 6 stars. Stay in the tunnel for 5 minutes and you'll get the achievement.

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.
* Kill all 200 Pigeons.
* Complete all 50 Unique Jumps.

Reach the indicated level of friendship with the corresponding character to unlock their special friendship ability:

Alex (screen name "LiberatedWoman")

Method: Look for the personal ad from "LiberatedWoman" in the "Women seeking men" section of the "www.craplist.net" website. Alex is somewhat of a self-centered, spoiled rotten rich girl. She will compliment Niko for wearing expensive clothing and driving expensive cars. She will also write about her exploits with Niko in her blog at "www.blogsnobs.org". Reach 80% friendship with her.

Special ability: 50% off at all clothing stores.

Brucie

Method: Take him bowling, drinking, eating, strip clubs, shows, helicopter tours, and boating to reach 70% friendship.

Special ability (Chopper Ride): Call Brucie, and he will fly his helicopter to you. This allows you to fast travel to various portions of the city.

Carmen (screen name "SoboHoe")

Special ability (Health Boost): Restores Niko's health over the phone. She will call Niko every chance she gets.

Dwayne

Method: Take him to strip clubs, eating, drinking, shows, and bowling to reach 60% friendship.

Special ability (Extra Help): Call Dwayne to have a car full of gang members follow you.

Kiki (screen name "LawChick")

Method: Date LawChick via "www.love-meet.net" through the in-game internet. Take her out a few times to reach 75% friendship. When dropping her off, select the "Try your luck" option. Afterwards, she will call you and say she can clear the feds.

Special ability (Remove Up to 3 Wanted Stars): Call her on your cell phone, and select "Clear wanted levels".

Little Jacob

Method: Take him to darts, shows, pool, drinking, eating, and strip clubs to reach 60% friendship.

Special ability (Discount Guns): Call Little Jacob, and he will drive out a car full of guns for you to buy.

Packie

Method: Take him to strip clubs, shows, darts, drinking, bowling, pool to reach 75% friendship.

Special ability (Boom?): Call Packie, and he will make a car bomb for you.

Roman

Method: Take him to bowling, darts, drinking, eating, pool, shows, and the strip club to reach 60% friendship.

Special ability (Free Ride): Call Roman, and he will send a free cab.

Stevie

Method: Successfully complete all 30 of his vehicle thefts.

Special ability: The South Bohan garage will now offer money for any vehicle you deliver. The better the condition, the more money you will earn.