Ok...
First of all, you will hear people ---smurfette--- and moan on how hard Ninja Gaiden is and how the camera angles suck........DONT LISTEN TO THEM!
IMHO, Ninja Gaiden has to be one of the best games made for this platform, next to Halo. I bought my box with the intent of modding it and turning it into a cheap media center. After I had everything setup and running, I turned my attention to burning games directly to the HDD.
My friend let me borrow his copy of the game and to be completely honest, I couldnt put it down for 2 weeks. Yeah, it was hard, but it wasnt a "thumbs" hard. It is a very challenging game all around. I guarantee you'll love it. I beat it 3 times already, and I'm still playing it. There are a ton of easter eggs througout, and there are things you can AFTER you beat it, that you cant do the first time around. I think in total, I've spent over 40 hours playing. The game saves your total playtime, along with your progress.
Dude.....get it........