Transformers: Revenge of the Fallen is an action-adventure game developed by Klocwork and published by Activision. The game is based on the 2009 film of the same name, which is the sequel to the 2007 film Transformers. Players can choose to play as either the Autobots or Decepticons, with a variety of playable characters, including Optimus Prime, Bumblebee, and Megatron.