Angry Birds (video game) mainstream games out right now", "one of the great runaway hits of 2010", and "the largest mobile app success the world has seen so far". In "Angry Birds", the player controls a flock of multi-colored birds that are attempting to retrieve their eggs, which have been stolen by a group of hungry green pigs. In each stage of the gameplay, enemy pigs are sheltered by structures made of various materials such as wood, glass, and stone resembling children's toy building blocks. The objective of the game is to eliminate all the pigs on the level. Using a slingshot, players launch
Angry Birds (video game) team settled on a minimum set of requirements, even though that left nearly 30 types of Android phones unable to run the game, including some newly released phones. It was released on October 15, 2010. One month after the initial release on Android, Rovio Mobile began designing a lite version of the game for these other devices. In early 2010, Rovio began developing a version of "Angry Birds" for Facebook. The project became one of the company's largest, with development taking over a year. The company understood the challenges of transplanting a game concept between social platforms and mobile/gaming systems.