Dude Beats Portal In Under Ten Minutes
We all know that Portal isn't exactly the longest game in the world, but it still managed to take most of us four or five hours the first time we went through it. I remember taking around two hours on my second playthrough, so the length decreases significantly as you get to know the puzzle solutions. Apparently YouTube user Transgenic86 has played through it many, many more times than the average gamer, because he can blaze through it in under ten minutes.
Check out the video below to see one of the fastest speedruns of a high-profile game you've ever seen.