http://www.snescentral.com/article.php?id=1000 Unfortunately, the prototype doesn't work, but there are noticeable differences if you compare the prototype with the final version. I asked the owner for a picture of the prototype, so I will add it when I receive it.
I updated the article. The prototype is actually of the Donkey Kong Country Competition Cart. Unfortunately, there are poorly dumped sections all over the binary, so we have to hope that redumps will prove fruitful.
I'm hoping it is just a bad dump and not bitrot. Considering the shape that the sixth chip is in, I'm not hopeful...
Assuming it's a close rendition to the original you might try patching in some of the dump floating around onto a copy of the EPROMs.
