Helmet Pig

Helmet Pig is the first boss in Angry Birds: Battle for

Piggy Island & Bikini Bottom

Battle
He has two attacks: Running into one of the cables at the end of the arena and shooting himself at you, and charging at you with his helmet. When he loses a third of his heath, his helmet changes from stone to metal, when we loses another third of his heath, his helmet grows spikes, after he is defeated, Chet will give you a star.