True enough there's no rule for consistency, but there's nothing against it either. And again if we argue which one is most well known by the world we end up with a discussion that's purely opinion. So that still leaves the last bit: the SNES version is a port. It would honestly be nice if there was a MOS for this sort of thing truth be told. Either way I just feel one way about the article and agree with using the other box art. I'm not currently working on that game article however (cleaning up and out the character articles instead actually), so I'll back out if need be.