I saw some good places where cuts might be made, I doubt the entire video in one pure take. A behind the scenes video would be great.
Here is the behind the scenes video of that cool ass A-Trak video for 'Tuna Melt': http://youtu.be/fwTOxGKlHvo
Creators confirmed in the comments that is was stitched together from many takes. When I watched it again, cuts became pretty obvious.
Personally I wish they used multiple cameras because I found the running up and down stairs bits to be a little awkward to follow. However this is only a minor criticism as it was a really cool video and far better than anything I could have done.