This game is one of the most notoriously challenging games around, if you play this game slumped on your chair you will get massacred, but it never feels unfair ( most of the times, cause there are sections where the game will strain your abilities and make you scream at the tv), when you suck you feel like you suck, but when you are owning people you feel badass and this is one of the game's strong points, making you feel like a loser if you suck or like a ninja that is doing some pretty awesome stuff.
The game itself is simple enough enter room, collect items, kill stuff and move on, at first its really entertaining but after a while it kind of grinds on and on and you start losing interest.
It has LOTS of content unlockable missions ( where you are set with unique challenges) and in the story mode you can use Rachel, though really freaking hot, using her at first is really uncomfortable because she's slower and weaker and Ryu and has a whole different but after a while you get used to her.
Now one of the main flaws is that after you finish this game you probably won't play it again, cause it's fun at first, but every single level you pass there are even steeper challenges and after you go through them once there isn't enough incentive to replay the game, it gets old after a while.

The camera is annoying, and makes the game harder, cause it hampers your vision during combat and an enemy you didn't see gets in a cheap shot because of it.

Graphics: everything looks great especially the character models. 5.0

Sound: it has some generic music and the rest of the sound package is nothing too special. 4.0

Controls: Really comfortable and surprisingly easy to get into, blocking and dodging take a few moments of practice to get used to the pace of the dodging and jumping you'll be doing to evade the enemies attacks. 4.75

So if you want to play a challengingly fun game then this a good buy but beware that, after a while it kind of drags on and the story is pretty much disposable. But no better choice if you want to feel like a ninja.

Ninja Gaiden is easily one of my favorites on the PS3, it's so much fun! You play as the famous ninja in black, Ryu Hayabusa, on a mission to obtain the Stolen Dark Dragon (an evil and very powerful sword) and avenge his destroyed village. However, during his journey, Ryu slowly learns that the fiends that stole the Dark Dragon are planning something absolutely SINISTER. So...yeah, the story is pretty cool. Ninja Gaiden also has impressive graphics(60 frames-per-second), and extremely challenging and addicting gameplay. Ryu obtains several kick ass weapons throughout the game, from nun chucks to swords that are bigger than he is. Each weapon has a set of its' own combos and moves, and more combos and abilities for Ryu's weapons can be obtained by upgrading them at shops, which are found all throughout stages as an old man statue. Athough upgrading weapons cost money, it is well worth it. The upgraded weapons gain more combos and sometimes even change appearance. The enemies and bosses in Ninja Gaiden are really challenging, but also entertaining to fight. From Vigoor Empire guards to gigantic fire-breathing dragons, Ninja Gaiden has all the bosses you could ask for. In short, Ninja Gaiden Sigma is a must-have for PS3 owners.

this is a good ninja game and i recomend to get this game if you have a ps3. the graphics and gameplay are good and the charicter design is awesome. BUY IT NOW!!!!!!!!!!

this game is amazing because of all the head chopping of heads and other freaky shit this is and will be a amazing game

I thoought that this was head slicing,ass-kicking game with all the new graphics.I think there can be a little more nimpo powers in it like water powers even though you had ice powers. And mabybe a fiend so hard to beat that it will make you go isane,but overall it was an good game.

Make a nother Ninja Gaiden that will blow my mind.