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) features not available on the smartphone versions. One day after the Windows version was released, the Mac App Store launched, with one of the first offerings being its own version of "Angry Birds". Ports of "Angry Birds" have also been proposed for the Wii and Nintendo DS systems, with the former becoming realized through "Angry Birds Trilogy" (see below). A 3D-enhanced version of the game was proposed for release on the LG Optimus 3D in October 2011. The popularity of "Angry Birds" has helped spread the game to other devices that were not initially designed as gaming machines. Barnes &