Prototype is a great game. The story is good always making you guess whats gonna happen next in the game but know this it is impossible to guess what will happen next, it is very unpredictable and this game will keep you in surprise just about through the entire game. You may think you have it figured out but just no because you don't. Also in this game the creators may set the bar very high for their players at some points in the game. Meaning that they expect you to do things that might seem potentially impossible. I found it difficult to do what the game asked me to do and i played it on normal. so just be ready for the next really big monster that crawls out of a hole somewhere. But i can give you all a tip to at least come close to succeed in beating the game without throwing your controller across the room. In the upgrade menu of the game where you go to upgrade your character you will some times see the word "core" next to the power or skill, and these are core powers to learn to defeat tough enemies so before you get in some really big doodoo make sure you have at least a few of these "core" powers activated. I know I wouldn't have been able to beat the game without these core powers and skills activated.
Part 2 must be nice, haven't played it yet. Didnt care too much for the story line though. Also felt that they ripped off resident evil a lil bit but its all good & the missions became more annoying towards the end. I know this sounds like a bad review but putting those things aside, i loved it.