This is the type of game that before you play, you want to tape your controller to your hands or you will throw your controller from one end of the room to the other( and if there are children present you may want to tape your mouth).
After 20 yrs of gaming this may be the hardest game I've played. Hard platforming, VERY hard Bosses, and a lack of save points make this game a real challenge.
The graphics are worth seeing, good enough that you may find yourself looking at the background instead of playing the game.
Easiest way to explain this game is Devil May Cry with better graphics, HARDER game play, more replay value( because you can unlock Ninja Gaiden I,II,& III),and Swords, & Nunchucks instead of Swords & guns.