This was at the very least an interesting art/tech demo. I really also liked the idea of sort of training/interacting with a household pet that has opaque internal logic, kind of like Black and White if Molyneux thought in Tamagotchi scale.
The morphing animations of the character were great. And it was pretty funny that it turned out to be a literal cookie monster.
I'm curious to know whether you'd consider using clayxels for something bigger.