Angry Birds Trilogy

Get at least 1 star on all levels in Seasons Episode 4 Go Green, Get Lucky (Levels 6-1 to 6-18).

If you have problems with any level you can check the 3-star guide from the angrybirdsnest link below. There are 18 videos so I won't embed them here. (Note that this is not for the Trilogy version so there can be some differences on some levels)

http://www.angrybirdsnest.com/category/walkthroughs/angry-bi...