Angry Birds Transformers generated characters to assist in a level for a limited time. Coins may be collected either during runs, popping pigs and/or simply by waiting and collecting coins that generate over time from freed areas. Some levels or features can be only unlocked when the player has upgraded enough Transformers to level 15. The game is the fourth game in the franchise to be compatible with Angry Birds' Telepods, a toy line that is also used in other "Angry Birds" games such as: "Angry Birds Star Wars II", "Angry Birds Go", and "Angry Birds Stella". When using Telepods, it can summon
Angry Birds (video game) in revenue from the advertising that appears in the free Android version. According to Rovio, players logged more than 5 million hours of game time each day across all platforms, with the series having 200 million monthly active users, as of May 2012. In November 2010, Digital Trends stated that "with 36 million downloads, "Angry Birds" is one of the most mainstream games out right now". MSNBC's video game news blog has written that "[n]o other game app comes close" to having such a following. "The Christian Science Monitor" has remarked, ""Angry Birds" has been one of the great runaway