First of all, Sigma was great...however all it was is Ninja Gaiden Black form Xbox1 with higher resolution and made slightly easier. Ninja Gaiden 2 blows sigma away in almost every aspect...

To disolitude:

I played the Sigma 2 demo and own the 360 NG2 (beat it on MN) and after directly comparing I can see that Sigma 2 is pushing HALF of what the original version is. 

The number of enemies per encounter is reduced from 7 to 10+ at once in the 360 version, down to 3 or 4 at a time in the PS3 version.  Along with that, the body parts disappear now as soon as you cut them off.   Speaking of blood, there's a lot less blood overall, and what little bit is there only stains the floor now.  In the 360 version, blood stained walls and floors and there was a lot more of it.  After every battle in NG2 there is a pile of carnage left over that told you that a badass had been there and wrecked some shop.  That whole effect is missing from Sigma 2 and it really is disappointing to me.  But at least Sigma 2 does run at a slightly higher resolution than NG2 does. It unfortunately runs slower than NG2 overall, even with less going on.  Even with these sacrifices, I still had framerate issues and random slowdowns in Sigma 2, just like the original.

Both games are great, but I won't be buying Sigma 2 again at full price.  The extras aren't gonna make up for that harder edge that they sacrificed or reduction in speed. But PS3-only people should definitely check it out. Either version of NG2 is a great action game regardless of whichever console you own.  

@Gutbuster

Listen har Sir!

Did they fix the camera?

@ZenfolderVGI

The camera will still abandon you, even though it's been "changed" a little bit. The supposedly fixed camera amount to them adding a feature where your character points his/her head in the direction you need to go after each fight. But that was unnecessary to me because both this game and the 360 original are linear and there's barely any way to get lost like the first game. In the original NG2, the bloody rooms and piled up body parts were a great way to tell where you had already been -- it isn't the same in NGS2, so maybe this feature will be good for some.

But in terms of battles, no the camera isn't any better at all. It still spazzes just as bad during fights. Just being honest and to the point now.