Angry Birds 3 stars level 21-4 Tips and Strategies
By: Rovio Entertainment
This video walkthrough demonstrates how to beat 3 stars level 21-4 without any power ups. Uploaded on AngryBirdsNest official channel at February 25, 2013.
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3 stars level 21-4 Questions
Questions related to 3 stars level 21-4 of Angry Birds iPhone game.