Yet another time waster. This game is more simple, you control a snowball that's rolling down a sloap and you have to engulf smaller objects along the way to increase your size. However, you have to avoid crashing into trees and backyards or the game will finish. As a tip, try keeping the snowball to the left, as you see more of the screen and also if it's close to the margin there are less obstacles in there. You'll see that as the size grows the snowball is very tough to control.
Here you can play it: Snowball 2007.