That Batman proto is mine. I picked it up when Sunsoft was closing down their US offices. Everything was basically going to be tossed in the trash, and I knew one of the last employees there, (I worked at a video game magazine, so we kept in touch with whatever Sunsoft was still making) and I ended up with all sorts of crazy Sunsoft history and prototypes from that US office. That was at least 6-7 years ago.