Basically it was a moving robot between uke and tori, about the size of tori, maybe a bit taller. Its arms (simple planks) were spinning in one direction, and legs spinning in another direction, causing him to flail around maniacally and move about.

Bump. C'mon, someone must have seen it.

I remember a similar mod, in which there was an entity, but instead of flailing around, it kept it's balance.