Prototype is hells fun. That’s pretty much all you need to know. It’s got what we might charitably call a ‘traditional’ video game plot, with a genetic experiment gone awry, and a super-powered, amnesiac protagonist, and a viral infection turning Manhattan into a playground of zombies and soldiers. However, the plot provides all the motivation we need for some super-insane power-fantasy abilities, like growing massive claws out of your hands, running up buildings and leaping over them, and shape shifting. It feels a lot like Crackdown, with even crazier powers, but with less sense of humour.
The ‘consume’ mechanic is particularly interesting. In order to assume someone’s appearance, you basically eat them, but you also get a brief, impressionistic montage of their mind, revealing plot details. Sometimes this is part of the main plot, but you can also leap around looking for other plot items to consume. That’s pretty much all I do in there now – narrativized leaping. I find it pretty irresistible.