Angry Birds: On Thin Ice Game Based on the on the best-selling phone app game, Angry Birds The second installment of the exciting skill and action game based on, Angry Birds Build, launch and destroy with fun new features, including pigs with helmets, breakable ice block building pieces, and exploding TNT box Includes 2 Angry Birds, 3 green pigs, 1 slingshot-style catapult launcher, structure pieces and mission cards For 2-4 players