Added some new sections today... found I had a little bit of time.
So I have added:
Euro MVS Releases... this is for the games that have been released under a different name in Europe to America.
http://www.neogeosoft.com/?section=mvs&filter=euro
Bang Bead was released in EU as "Bang Progress" as well, at least that's the explanation I've heard for the Bang Progress carts.
I have a Bang Progress cart (middle of right-most row in this pic http://i.imgur.com/NIfUe.jpg ) and it seems legit.
I haven't really seen any official confirmation on this being a EU release or anything. I've seen such mentions on quite a few message boards though.
Note that the ingame text/graphics state "Bang Bead" though, so not sure what's up.