Angry Birds (video game) and for PCs. A sequel, titled "Angry Birds 2", was released in July 2015. In the game, players use a slingshot to launch birds at pigs stationed in or around various structures with the goal of destroying all the pigs on the playing field. As players advance through the game new types of birds become available, some with special abilities that can be activated by the player. Rovio Mobile has supported "Angry Birds" with numerous free updates that add additional game content, and the company has also released stand-alone holiday and promotional versions of the game. "Angry Birds" was praised
Angry Birds "Bad Piggies: Egg Recipes", along with doodle books based on some characters of the game. After a few weeks of the release of Angry Birds Space, they also released Angry Birds Space books about numbers, alphabets, and stickers. On 20 March 2012, "National Geographic" published a paperback book titled "Angry Birds Space: A Furious Flight Into The Final Frontier" shortly before the release of "Angry Birds Space" which became available on 22 March 2012. National Geographic also has a book titled "Angry Birds Feathered Fun" for learning all about birds. In the same year, Rovio created a contest with the