I believe it would be much more interesting if all animations served a greater purpose. As it stands, this collab feels more like a disjointed excuse to get some attention. I mean, I get that this is the point of any collaborative work to some extent, but I find myself a lot more amazed when I look at one big video that got animated by a bunch of people than when I look at a collection of disconnected shorts.
The drawings and animation of some of these sketches is great and I can also appreciate the effort of both hobbyist and professional artists, but the writing for most of these skits is abysmal and almost negates everything else. Starting with Bowser eating poop should have been a big enough clue. The mood and level of humor is uneven, and the only five clips out of the whole I actually enjoyed would probably have been funnier on their own.
All in all, I can't give this more than a 2 because it feels like I wasted my time watching it.