A few reviewers are playing down this remake and for one specific reason... The gore police have censored this game. Yes that satisfying blood bath which ensued from dismembering enemies in NG2 is now gone, replaced with a glowing purple light, a little bit of bloody spray, bloody swords and boobie jiggling. And I agree that it's a big deal, the gore is a big satisfying part of NG. It's a bit sad they decided to tone it down yet give us six-axis boobie jiggling and co-op. Sure the co-op mode ...
Obviously Tecmo has the rights to release a Sigma version later for Playstation. They did it with 1, they've done it with 2. Don't pretend to understand what goes on behind closed doors. This will all have a solid grounding and I'm sure MS got what they wanted out of the deal.