"The Angry Birds On Thin Ice game from Mattell is based on the bestselling digital app, Angry Birds, offering a battery-free way for your young ones to play. Players draw a mission card and are challenged to build a structure before opponents can launch Angry Birds to knock it down. Breakable ice blocks, helmet-clad pigs and an ""exploding"" TNT box keep things interesting. Included are 2 Angry Birds, 3 green pigs, 1 slighshot-style catapult launch, structure pieces and mission cards. Angry Birds On Thin Ice game is recommended for ages 5 and up; 2 - 4 players required."