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) birds higher and faster. Power-ups can be purchased in-game or given by friends who also play the game. "Surf and Turf" would later be included in the original mobile versions of the game, starting with iOS. The Facebook version features weekly tournaments among your friends, with the top 3 winners earning free in-game "Bird Coins" which can be used to purchase power-ups. There was a unique Green Day themed chapter, however it was removed in December 2012. At the 2012 Electronic Entertainment Expo in Los Angeles, California, Rovio and distribution partner Activision announced plans to bring "Angry Birds" and two