Angry Birds (video game) was being played, the staff liked the characters, and the team elected to design a game around them. In early 2009, physics games, such as "Crush the Castle", were popular flash-based web games, so the Rovio team was inspired by these games. During the development of "Angry Birds", the staff realized the birds needed an enemy. At the time, the "swine flu" epidemic was in the news, so the staff made the birds' enemies pigs. Angry Birds was the studio's 52nd produced game and on its initial release, the game did not sell many copies. After Angry Birds was a
Angry Birds playing "Angry Birds" and poking each other on Facebook". He then provides a tip for Liz to improve her score in the game. In February 2011, American journalist Jake Tapper mockingly introduced U.S. Senator Chris Coons as the "Angry Birds champion of the Senate" during the National Press Club's annual dinner. Some of the game's more notable fans include ex-Prime Minister David Cameron of the United Kingdom, who plays the iPad version of the game, and author Salman Rushdie, who claims he is "something of a master at "Angry Birds"". Basketball star Kevin Durant is an avid fan of "Angry