This is incredible. I'm surprised somebody actually took the time to do this.

I see Nano on the far left side of the picture and the far right side of the picture at the same time, so I labeled it time paradox. There are possibly more duplications then this.

I think it's more of a time progression montage than a time paradox since the weather changed as well, but I'll wait for another opinion before touching the tag.

I saw mario!

Is this actually the entire background from the ending? I thought it was longer. Maybe it was just the illusion of that giant scrolling BG. :P