Utopia 4-27

Utopia 4-27 is the 27th level in Utopia.

Difficulty
It's quite hard to get 3 stars.

Strategy
Fling the orange bird to the far right side of the level so that it bounces off the bumper on the far right side and back up into the stone tower. The orange bird’s expansion should knock the tower down to the left. If he hits with enough force (and a little luck) this can finish off the level here. If required, fling Terence into the big pile of pop corn kernels at the top so that the explode outward.

Walkthrough
http://www.angrybirdsnest.com/angry-birds-space-utopia-level-4-27-walkthrough/

Note: You can discuss difficulty for every level in talk page or dicussion.