In Angry birds, the player controls the multicolored birds, they are attempting to retrieve their eggs from hungry green pigs, who stolen the eggs. the pigs are protected by structures made of various materials such as wood, glass, stone and other objectives. Using a slingshot, players launch the birds with the intent of either hitting the pigs directly or damaging the structure. On each level it became tough for player to reduce all the pigs. There are several different types of birds used in the game. In the earliest levels, Red is the only one available. As Player Gearing up the level there are additional type of birds became available. Some birds have special of use in opposition to particular materials, and some have special abilities that are activates by players. For example, Chuck speeds up, The Blues separates into three birds, Bomb explodes and Matilda can drop an egg-shaped projectile. Pigs are also in different size, small pigs are weak and easily killed while large one are able to maintain more damage.