Alex - Earn an 80% relationship status with Alex for a discount of 50% at any clothing stores.
Friendships, you can call them and ask them to activate special perks to help you out of a tough spot, as indicated below. If you sufficiently improve your relationship with certain other characters in the game (i.e. Tier 2 Weapons (Bat, Grenades, MP5, Carbine) Tier 1 Weapons (Knife, Molotov, Uzi, AK-47) Many of these cheat codes will prevent specific achievements / trophies from unlocking, so make sure you save your game before entering cheats. Once entered into the phone, you will retain the code under the Cheats menu in your cell phone for later use. Some of the most exciting of these GTA 4 cheats can be entered by bringing up Niko's cell phone and dialing in the numbers. This page contains cheats and secrets in Grand Theft Auto 4.
