Angry Birds (video game) use polish – such as sharper visuals, a better price and smoother action." Damien McFerrin of British website Electric Pig reviewed the PC version, saying "the mouse-driven control method showcases many distinct advantages over its finger-focused counterpart". Angry Birds has also been described critically as impossible to understand the playing rules criteria by game critic Chris Schiller of Eurogamer.net, which has 'a contemptuous attitude towards its players, keeping them just frustrated enough not to switch off and play something else instead.' "Angry Birds" became the top-selling paid application on Apple's UK App Store in February 2010, and reached the top
Angry Birds (video game) hits of 2010". In December 2010, in honor of the one-year anniversary of the release of "Angry Birds", Rovio Mobile announced that the game had been downloaded 50 million times, with more than 12 million on iOS devices and 10 million on Android. By January 2014, the "Angry Birds" series had reached 2 billion downloads, including "Angry Birds", "Angry Birds Seasons", "Angry Birds Rio", "Angry Birds Space", "Angry Birds Star Wars I & II" and "Angry Birds Go!" On Christmas Day 2011 alone, 6.5 million copies of the various "Angry Birds" games were downloaded across all supported platforms. In the