The video is from a "mission" i was on yesterday, and well what can i say...
The music, all the colors, the environment, Ori and the blind forest is probably one of the most beautiful games i've ever played. If you haven't played it go ahead and buy it, it's worth every penny. IMO.
-
Finished it just yesterday, best 7 gaming-hours of my life. Only game I could compare to this would be Dust.