Prototypes/ Sample games for sell? Anyone?

[fredJ]

I have never been interested in prototypes, as a collector. But I can see why people want them.
There must be a lot of prototypes in and around Nintendo facilities. Test carts and so on.

[L___E___T]

Found this:
http://www.ebay.com/itm/ws/eBayISAPI.dll?ViewItem&item=120973892633&item=120973892633&lgeo=1&vectorid=229466

[XiTaU]

this guy is selling a few protos can anyone with a good knowledge of japanese look over them and see if they can workout what they are
he just has them listed as unknown even though he says he has tested them