This would probably be the best megacollab if they kept the same visual and gameplay style that was established in the beginning for all of the parts. Devolving into more detailed decorations, using the move trigger, and having a ton of speedcore/flow (?) gameplay kind of takes a lot of air out of its sails. Still, I am still shocked to this day that this is as good as it is- I know not a lot of people like "needleslop" or whatever it's called, but I think there's a lot of shared essence between GD and IWBTG, and it's levels like this (and later on Dead of Night) which are able to feel very close to GD's essence while feeling fresh and creative. Great job.