Angry Birds is a video game developed by Finnish company, Rovio Mobile. Games inspired by drawings of birds that are not winged was first released for Apple's IOS in December 2009. Since then, more than 12 million copies of the game have been purchased from the App Store, Apple, and prompted the manufacturer to their new versions of the touch-screen smartphone, eg Android operating system, among others.In this game, players use the catapult to shoot the birds to pigs to guard bands in the fort with a view to eliminating all the pigs on the playing field. When players move forward throughout the game, there are new types of birds that have special abilities that can be activated by the player. Angry Birds Rovio Mobile support with free updates that add the contents of the game. Rovio also released a separate version of this game during the festive season and promotion.
