That's bloody insane. I was mildly amused at first, but thought I'd watch a couple seconds and be done, then I was sucked in, then totally flabbergasted, then just got to the point where I figured it had to have been done by a computer and not a man because that would be fucking impossible. Then I went back to being somewhere between impressed, confused, and in disbelief, before it finished out.
I'd love to hear the real story behind that.