With Grand Theft Auto IV flying out of the shops and into the hands of eager Xbox 360 and PS3 owners, we'd thought we'd reveal more tips and tricks to make sure that you get the most out of this year's must have game. We have already published a list of phone numbers that Niko can use to boost health, armour and the like. (Click here).

So here they are listed for your viewing pleasure.

How to get 100 percent completion

Successfully complete all 90 story and procedural missions to get 68 percent complete.
Successfully complete all 30 car thefts to get an another 2 percent.
Successfully complete all 50 stunt jumps to get an another 2.5 percent.
Collect all 200 pigeons (flying rats) to get an another 2.5 percent.
Find all random characters and complete their missions to get an another 5 percent.
Successfully complete all 20 vigilante crimes to get an another 2.5 percent.
Kill all 30 people on the list to get an another 2.5 percent.
Beat friends or computers at every activity to get an another 5 percent.
Get all your friend's special abilities and do all their activities to get an another 10 percent. N.b: This doesn't include Dwayne or Roman.

On next page, what are friends for....