It's an ad for East Japan Railway, The body and skis are real, the neck and legs were CGed in.

sudan no1 is lying to you. Everything in this ad is completely real.

ostrich is real. mountain is cgi.

Whoah dude, totally Xtreme to the max and rad and awesome rockin' sweet, bro.

This is all real, my cousins friend was there, hes the guy in yellow

So many humbugs in this place. Videos like this are why we have computers.