Congrats, you played yourself because Prototype was a great game and a great experience. In many ways probably better than inFamous too.
The story was super basic but the gameplay was excellent. Extreme carnage, awesome powers and abilities, a lot happening on the screen. The way NYC was divided in zones was cool, and especially the areas where infected were pouring into the streets to attack regular people with helicopters overhead and tanks suddenly rolling in shooting indiscriminately into the crowds to keep the infection from spreading were fucking wild.
I had a lot of fun with this game, and its sequel.