This is the most awesome Speedrun I have ever seen: Portal in 9m 25s (World Record)! The guy is just blazing through the levels in a way where – even if you played the game – at many points you will have no idea where he is. Of course this is mainly due to the fact that he is exploiting the even craziest glitches in the game engine. He literally broke out of the intended game path, like the test subject broke out of glados’ test path during the portal storyline. He even presents some of them that are not required for speed at all, but just to show off his skills and the possibilities with the engine (for example how to reach the room with the cake)…

httpv://www.youtube.com/watch?v=W1U5RUVENNE

Even more amazing though i found the commentary videos that he provided (making the speedrun even more awesome). In those he explains exactly which glitches he used and demonstrates live (and proofing no hacks used), how difficult it must have been to do the levels and find the glitches. You can watch him trying 100s of times while recording for the commentary video. Man, I admire his patience!! A definite must watch for anyone into computer games, game engines (or game development in general) and portal geeks of course: First part of the commentary (1 of 15):

httpv://www.youtube.com/watch?v=ziuj8KW_XQ0

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