Angry birds danger above walkthrough levels 6,7, and 8 are now available. In this episode of the game, the pigs steal the eggs and escape using balloons hence the title danger above. Another bird, called the boomerang bird, is available for use and is first introduced in level 6-5. Each video walkthrough has three stars and is the official walkthrough video from Rovio.
Angry Birds Danger Above Walkthrough