I still have yet to come anywhere near close to finishing the first one, so when this does come to the American eShop, I most likely won't be purchasing it anytime soon.
I consider this the greatest Mega Man game made as of yet, from best to worst version is the original JP then NA(GBA) then Collections.
Out of curiosity, why do you consider the Collection port to be the worst? I'm ignorant to any differences between the versions, and since the Collections version was the one I played, I'm interested to see why you feel that way.
Minor changes here and there, when I say best or worst it's just my personal opinion. Some positive changes are cleaner sounds and music, although I never found the GBA games that poor sounding to begin with so it is just a minor thing.The Collection version did however try to censor the game on top of the already censored western releases, mostly by removing explicit text addressing death. It also changed properties of some weapons, and took out an entire mode that allowed two players to compete in a race to clear a stage via link.You can find more info on this page, in the comments and the corresponding gamefaqs thread linked in the post.http://www.themmnetwork.com/blog/2010/06/20/changes-to-mega-man-zero-collection-how-many-have-you-spotted
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