Alex Mercer's freestyle slaughter-fest genuinely feels like a prototype in many ways. The combat and shape-shifting weapons are absolutely incredible; arming the player with an array of blades, bludgeons and the nifty ability to consume enemies to gain their appearance. Spending half an hour kicking helicopters out of the air, cracking tanks like eggshells, sprinting up skyscrapers and surfing gormless soldiers down the streets on a wave of their own guts will frequently make you forget all about the story and context. Unfortunately this is a good thing... since the story, premise and characterisation are dull and po-faced to the point of being deeply boring. Employ Mark Hamill for a sequel!