Same here Jack, it's the only game I have played on an almost daily basis since I first got Windows, back in the early 90's.
Never could play even a 10th as fast as that guy though.
I knew one guy who could play for 2+ hours at the highest level on 2 different machines with both hands. Guy was freakin' amazing, but I don't think as fast as this guy. He look clairvoyant.
I used to play a lot on my Gameboy and later Gameboy Color. I lasted into the mid-30 levels sometimes. At level 25 or 30 it stops getting any faster and you get used to the speed. But if you screw up a single block when it's going that fast, you're pretty much tost. On the Gameboy color version some folks have managed to play for multiple days in one game though (you can save in the middle of a game.) I was still pretty impressed with myself though...