I'm stuck on Ninja Gaiden II, and I still can't fly the stupid plane in Grand Theft Auto: San Andreas. Oh, and then there's Guitar Hero on Expert.
Yes, I know, these are probably child's play to you people. But keep in mind that while many of you see mastering an incredible difficult game as some kind of skill worth bragging about, some of us still play games for pure entertainment. And we are not willing or able to spend more than a few hours a week doing something that really doesn't matter all that much.
This is why I never got into poker. Potential to lose money based largely on random chance and my ability to lie? No, that doesn't sound all that fun, sorry.