Ninja Gaiden and NG:Black from Xbox. Also Devil May Cry 3, the original edition.
They were so freaking hard, and it got frustrating. I managed to beat the Ninja Gaiden games, but never finished DMC3. I waited for the Special Edition, and it's a lot easier. Though, there is one part in DMC3 that still pisses me off. It's where you have to get this thing at the end of a hall, but there some lightning things where you have to dodge them to advance.









