What is the world's hardest computer game?

There is this game on the internet called "The Hardest Game in the World". But believe me it is not the hardest. I've actually managed to get to level 2 on that game and it is nothing compared to this game: LoZ Ocarina of Time. This game is impossible unless you've beaten all of its previous games. You PS3 and Xbox 360 fanboys (and girls) say "are you kidding me, this game is easy, battlefield is harder". Yeah, no its not. You try beating the Water Temple without an internet walkthrough or strategy guide. This game is impossible once you pull out the Master sWord from its pedastel...