Angry Birds is a popular game app (and website) developed by Rovio Entertainment. The goal of the game is to launch birds, using a slingshot, at pigs that are hidden in structures. The birds must be used in order to knock down the structures and eliminate the pigs. The game is set up in multiple levels, with each level becoming increasingly difficult to complete. The player must use strategy and accuracy to complete each level and advance in the game. The game is available on iOS, Android and Windows Phone devices, as well as on the website. It has been downloaded over 2 billion times and is one of the most popular mobile games of all time.
Crush the castle is a more difficult and interesting game than an angry bird.