CheatCC gave it a 4.4/5
http://www.cheatcc.com/ps3/rev/ninjagaidensigma2review.html
Visually, though attention was paid to make the game look even better than the previous version, it is imperceptibly so. All of the textures are equally shiny, and the character animations are every bit as smooth. What does stand out slightly is the solidity and stability of the framerate.
http://www.cheatcc.com/ps3/rev/ninjagaidensigma2review.html