Mattel - Angry Birds Knock On Wood Game by Mattel Toys br br br Based on the on the best-selling phone app game, Angry Birds br br Now kids can play their #1 favorite app game in real life br br Build, launch and destroy with an exciting skill-and-action br br Features three Angry Birds, green pigs, one slingshot-style launcher, structure pieces and mission cards br br For 2 or 4 players br br