It is supposed to be a pachinko machine. It does look different from traditional pachinko machines though.

I wonder how it works exactly?

EDIT:

Well ANN has an article on the "pachink slot machine" character that is getting her own anime this upcoming season so I guess that's the category this machine would fit into:

http://www.animenewsnetwo...to-stream-on-crunchyroll

Edited 1 time by Terence T T Jan 3 11 6:23 PM.