It was titled that in Europe? Hmm..maybe that Goemon 2 proto is a PAL proto, but has JP on it since as you say they the localization was done with the original developers, who are in Japan. No way to know of course until this is dumped :) I found the guy with that cart btw and messaged  him asking if there's any differences. Let's hope he responds :P

And the price...I can't believe you find it cheap lol. I mean Goemon isn't even that popular, I would expect a lower price somewhat. But whatever, it's business and DreamTR's choice and all that stuff and I understand. Hopefully more donaters turn up so we can see once and for all what this is :)