Theme 3-21 (also known as Pigs' lair) is the sixty-third level in Angry Birds, and is the last of the episode Poached Eggs. The King Pig makes his grand debut as an enemy. There are five white birds and two black birds.
To easily win this level, throw the Black Bird into the hole where the moustache pig is and he will blow up the TNTs and destroy the castle easily. Use the rest of the birds to kill the other pigs.
Video
thumb|left|366px|Walkthrough of Theme 3-21
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