Addiction Level

Addiction level is a stat in gta iv} where the more you play at one time or total hours on Gta IV will increase your addiction level in the game. Here are the levels from lowest to highest:
 * Getting Started
 * Coming Up
 * One Toke Over the Line
 * The Weekend Has Landed

(Incase you happen to find more levels in the game put them in this article thank you)