You gotta think, too.. This went from 2d FRAME BY FRAME animation. Literally every motion being hand drawn (lolthe90s), to a 3d CGI animation. This is absolutely phenomenal. It would also explain the stiffness of the models, because it's trying to keep real time with the 2d which was able to be a bit lazier in making things move, because you can skip a frame or 2 and it'd still look good, with 3d you don't get that luxury because then it looks like poop. Also, for one person, this must have taken a VERY long time to complete. Even for a short video like this, and taking short cuts. But the end products was so well done. Like I said, phenomenal. ESPECIALLY since it's just one person doing it. No way would I have the patience for something like that on my own.