I say you should remove Lure of the Temptress and Contra, though. The former, you ain't gonna beat so quick unless you go into the game already knowing what to do or are using a walkthrough, the latter, tinyE was joking about. It's literally been called one of the hardest games in the world. Sure, there are only 8 levels, but you will die. A lot. A whole lot. If he really beat it that fast, either he used a cheat code (heck, the game is what's so responsible for popularizing the Konami Code), or he did it after some 50 hours of practice.
Edit: The game I mentioned is already on the list, didn't see it, my bad.
Post edited December 27, 2015 by zeogold