Level 3-20 is a test of your timing with the Yellow Bird. Don't aim for the very top of the tower; aim for the legs to bring the house down. Master the speed boost, and you’ll be moving on to Level 3-21 in no time!
The key to this level is the Yellow Bird’s ability to break through wood and gain speed. You won't need all your birds to get three stars; in fact, the fewer you use, the higher your score.
If any low-health pigs survive under the rubble, use .