Kid Icarus: Uprising Prototype Gameplay Video

I'm the kind of person who like to see how video games are created, so looking at concept art and beta gameplay is very interesting to me.

Today while searching though the gaming news on Digg, I came across this prototypes version of Kid Icarus: Uprising.

Source of the video;
http://nintendoeverything.com/85520/kid-icarus-uprising-prototype-footage/