Fascinating, and in some ways, revolutionary; however, lacks the knockout punch seen in most great games.
There are many notable queries about Crysis that I'd like to point out: it's impeccable introduction and usage of the nano-suit that will, no doubt, sate anyone's thirst throughout the game, if the crystal-clear waters of the sunny shores don't do it first. What's impressive about this technology is that it sets the foundation and groundwork for future games to reprise its use and ideas for limitless possibilities. It somewhat reminded me of Jedi-knight outcast, where the protagonist was allowed to use force speed and strength to maneuver around levels and kill enemies. Sure, it's not quite the same, but it doesn't have to be. Sneaking up behind North Korean militia whilst cloaked and rendering them dead, while manipulating the strength-factor to establish myself over roof-tops and gun people from above was fascinating to say the least. A true testament to gaming ingenuity.
What was also ideally impressive was the graphics. I know it's been touted before, but not by me, so I will do so now. The aesthetical appeal was remarkable to say the least. I could literally walk along the entire coast of the sunny shores, and perhaps, take a little dabble down to the ocean floor (or atleast try to) before springing back up like a dolphin in a sea basket. I thoroughly enjoyed the surroundings and quite simply put, did not want to leave the beach.
However, all good things must come to an end, and that leaves me to define the alien mother-ship. I did not, what so ever, enjoy this particular portion of the game. Yes, it was stunning, and yes, it was incredibly well designed, but I couldn't, for the life of me, enjoy it for very long as I moved frantically around and about searching for sizable orifices yielding my escape. Even my achievement of escaping the mother-ship was predicated on luck and perseverance. I still don't know how I did it.
The alien segments were fun in theory, with the best of intentions, but the execution was underwhelming. The glitches in the game affected certain scenarios to the point of impeding progress. There's this one helicopter segment, where it feels almost impossible to control the chopper and execute the tactics required to pass the particular mission. Again, I have no idea how I did it, it must've been luck.
It's hard to quantify the difficulty of the game. I played it on the hardest setting, and it still wasn't all too difficult. There were moments where I had no idea what I was doing, but all-in-all, I found myself maneuvering through forestry and alien cesspools with relative ease. The nano-suit made it substantially easier, but then again, it was the best part of the game.
I won't delve too much into the ending, but regardless of what anyone says, I liked it. It wasn't fantastic by any means, but it reassured me that sometimes things are not what they seem, and at other times, things are exactly as they seem. That was meant to be confusing.
Overall, it's a great game, although, some revisions will definitely be required for future installments.