I've seen plenty of mentions for Ninja Gaiden 1 and 2, but I guess since I play them a whole lot whenever I go to where I have my old NES, I can beat those two games fairly easy now. I haven't seen anyone mention Ninja Gaiden 3 though. That game was a lot harder than both of the others. I've actually gotten to the final boss(at least I hope it is), and he beat me. The only time I ever got to him. First of all the last stage is about as long as the final stages in the first two games combined, so once you get to the boss, you might be able to have half your life left. Then, if I remember correctly, he just sort of flies around the room and hits you with this lightning attack that I couldn't dodge. Got him down to about half life though, so many one day...