I agree with Mario games being difficult to actually beat. They get boring for me real quick.
Also, I cheated my way through the original Doom. Also, note that if you really haven't beaten Ocarina of Time after starting it, then humanity is lost. And Final Fantasy XIII is great!.....after you get through the first 20 hours! it's really not that bad
Finally, I totally troll whenever I am absolutely stomping you in a game. That's right, I'm the guy who tells you how much of a failure you are at regular life when you fail in a video game.....good times