Sierra have released some new screens from thier new game Prototype, which makes it debut on Xbox 360 and Playstation 3 later in the year.

For those not in the know, Prototype tells the story of Alex Mercer - a man haunted by his past, fighting a secret war in New York City. As the action spirals out of control, a conspiracy tied to his origins threatens the future of mankind itself. Mercer’s amazing shapeshifting powers allow him to become an exact replica and steal the skills or powers of anyone who crosses his path.

The new screens are below, make sure you let us know what you think.