The world's fastest feet play Dance Dance Revolution
There's plenty of Dance Dance Revolution vids featuring crazy Koreans pulling out nifty moves, or people performing choreographed dance routines. But that's not playing the game, it's memorising the movements. Impressive, but not nearly as amazing as this footage of ultra-hardcore DDR gamers.
In case you skip to the best bits (the last two mins) or through the boring talky part, here's the lowdown - this is a run through of the most difficult DDR tracks on the most difficult setting, with players leaping in and out. Sure, it's not dancing, but it is a display of awesome gaming skill.