I finished this on the normal difficulty; definitely enjoyed my time with the game but the camera really got to me sometimes. I might have been more compelled to play through some more on higher difficulties and unlock all the upgrades, look for secrets, etc. but I think the camera did a pretty good job of discouraging me from doing that for now. Maybe I'll pick the game up later on the cheap. I really enjoy the parry and blade systems though, and even though I was completely unaware of there being a list of combos in the menus I still had a great deal of fun switching up my attacks, even if I didn't know specifically how I was executing them. It could have been nice to know how to dodge, I did it by accident a few times in the final fight and thought it was just a last fight thing because I had forgotten I bought dodge in the first place. I certainly figured out how to beat the boss without it, just it could have been helpful early on when I was still getting my footing with figuring out when I had openings to attack. Some emphasis on going to a list of moves at least would have been nice. :\
Unfortunately by virtue of getting it through GameFly I sent it off since I'd rather get new titles but definitely a cool game, even for someone like me who doesn't have a huge investment in the Metal Gear franchise [was renting it specifically because I really enjoy Platinum].