After watching this and all others I have to say that this series is amazing. It's abstractive in every way: is not chronorogical, 2D and 3D worlds are different yet they connect with each other, one drug makes reality and second transforms into zombies, logic with textile creatures seeing only clothes as alive beings.
I don't have to analyze because it's straight forward. I don't need to argue because it's not trying to be realistic.
Other thing is improvement, where at start it was crazy polygons with transformations, then gets 2D with animations like blowing into already full baloon, and then the movement is core wacky-ness.
Truly amazing