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 Rio issue with the new boss battles, calling them "a little anti-climactic". Tracy Erickson of "Pocket Gamer" noted that "what Angry Birds Rio lacks in new ideas and freshness, it makes up in quality gameplay and good value". Since release, "Angry Birds Rio" has been downloaded more than 10 million times, and it has been one of the top downloaded games at both the Apple App Store and Google Play. Angry Birds Rio Angry Birds Rio is the third puzzle video game in the "Angry Birds" series, developed and published by Rovio Mobile. Based on "Angry Birds", "Angry Birds Rio" was