Part of a recently released web document which revealed the existence of Microsoft's forthcoming version of the Nintendo Mii's called Avatars was information on the tie-in game to the Transformers Movie. The game, currently dubbed Transformers 2: The Ultimate Battle, is listed as being released on the PS3, PS2, PC, Wii, PSP, DS and Xbox 360. The document (you can find the image below) contains the following text.

"Make every second count Transformers 2: The Ultimate Battle, as you choose to seek revenge as the Decepticons or defined Earth as the Autobots. Go beyond the movie and drop into pressure-packed missions where seconds can make the difference between survival and destruction. Play as a variety of Transformers, such as the evil Starscream or heroic Optimus Prime, to either demolish or protect fully destructible environments around the globe. A new Transformation system gives you more detailed control as you instantly switch between Robot, Weapon, and Vehicle modes at any time to drive, fly, fight and shoot youy way through gripping levels. Then make your choice online as you go head to head against friends in multiplayer battle zones. Your alliance will decide whether Earth's greatest cities stand or fall in ruin as you experience the ultimate level of intensity in this race against time.

Price: $59.99 for Playstation 3 and Xbox 360
$49.99 for Wii, PS2 and PC
$39.99 for PSP
$29.99 for NDS (2SKUs)
Expected ESRB Rating: T/Teen - Suitable for those ages 13 and older".

If true, this confirms suspicions that the returning Transformer metioned by Hasbro is not Megatron, as many believe, but is Starscream, with the film seeing him return to Earth with a new band of Decepticons to take revenge of the Autobots. Hence Revenge of the Fallen.