Angry Birds Space easier to aim the birds. Some pigs are in space bubbles, and when the birds break them, they will freeze and smash unless they get into a gravity field. Like in "Angry Birds Rio", "Angry Birds Space" features boss fights. In February 2012, Rovio announced a new game in the "Angry Birds" series to be called "Angry Birds Space". "Angry Birds Space" launched on March 22, 2012, and features elements from the preceding "Angry Birds" games as well as new gameplay mechanics. The game initially contained 60 levels with additional levels available as free updates or with in-app purchases. For
Angry Birds (video game) history of the Apple App Store, "Angry Birds" holds the record for most days at the top of the Paid Apps chart, having spent a total of 275 days at the No.1 position; "Angry Birds Rio" has been No.1 for a total of 23 days, ranking ninth on the list. In Apple's "iTunes Rewind" list of the most popular iTunes Store media for 2011, "Angry Birds" was the top-selling paid iPhone/iPod app on the App Store and its free version was the fourth-most downloaded. The game's two special-edition versions, "Angry Birds Seasons" and "Angry Birds Rio", were also ranked in