Transformers: Revenge of the Fallen , a game based on the movie of the same name, is set a few years after the defeat of Megatron. The Decepticons have begun popping up again all over Earth, searching for a mysterious object from space that will give them the balance of power.
The game is a linear third-person shooter where the player takes control of many characters from the movie, shifting between Autobot and Decepticon factions. The storyline is told via cutscenes, allowing for easy transitions between characters. Players can choose from Optimus Prime, Iron Hide, Jetfire, and Bumblebee on the Autobot side, and Starscream, Sideways, and Megatron on the Decepticon side. While transforming is not an option throughout the game, it appears in special attacks during robot mode, as fixed alternate game modes (such as driving Shanghai tunnels or flying through Russia), and as special moves that grant alternate abilities. For example, transforming into Starscream while flying allows him to fly backwards and take out enemies behind the player.
Multiplayer is available at any point during a single-player campaign, where a friend can join in as a "Remote Weapon System", allowing them to shoot enemies, erect shields, and transfer energon between players.