Brilliant, absolutely brilliant.. and then some....
The story line is immersing, the web of intrigue adds a very ,well, intriguing factor to the game. The story is the main reason this game scores higher than infamous for me. The way it develops out and little pieces add themselves in here and there is ingenious. Prototype also has an excellent ai system. As you progress the game progresses. The bad guys slowly upgrade themselves to deal with you through the game. You can hijack tanks and helicopters. Ha! now thats madness. Practically everything from attacks to movement is upgradeable, which makes its more fun seeing that you can add so much to your arsenal.
My opinion is if you havnt played it you should. The games easy to get used to, addictive to play, intense story line, and incredible gameplay. overall i give it a 9. Because if it was just a little better graphically, it would be legend-wait for it- DARY!!!!!