YouTube comments are a waste of time anyway.
Well, it wasn't a terrible creation. Or idea. Handhelds do work better for cooperative modes like this. If it were a separate game, would I buy it? Unlikely, unless for some reason the DS is still around by the time Galaxy is ripe enough for a 64 DS-style remake.
But this guy went through so much unnecessary trouble. He could've just copied models from Super Mario 64 DS...