I'm pretty sure that dude was at my home mountain in michigan and he entered this park skiing comp. When he went they played some wacky music, and he just did all that crazy shit down the course...haha. He didn't place though.
Me too, I'm very jealous. I'll try it next time I'm skiing, but it looks like it takes quite a lot of coordination and upper body strength to be able to get your whole body up onto poles.