Many orbits around the sun ago I started comparing Mother 2 and EarthBound and seeing how the game was localized. I actually FINALLY finished that a little while ago here: http://earthboundcentral.com/m2eb/
There's a ton of stuff, so it'll require like a full afternoon of time to read through
Anyway, since I'm a crazy guy I immediately started wanting to do the same with other games, so I just went through the original Super Mario Bros. in the same way and posted it here: http://matotree.com/localization/smb/
I didn't think there'd be much to write about first, but it actually turned out pretty interesting.
Right now I'm working on one for the first Zelda game, one quick question I have is this - does anyone know the differences between the 1.0 FDS version of Zelda and the 1.1 version? I've been playing the 1.0 version, but I haven't taken a look at the 1.1 yet.
Also, any suggestions for other games that might've had interesting localizations? Right now I want to avoid super-long games like EarthBound, so I'm mostly sticking with NES and early Super NES games. But two later games I definitely want to take a look at later on are Gitaroo Man and Symphony of the Night