Hands-on with The Legend of Zelda: Majora's Mask 3D
http://www.pocketgamer.co.uk/r/3DS/The+Legend+of+Zelda%3A+Majora%27s+Mask+3D/news.asp?c=63321
Changes
This 3DS version has gone through a few changes to help alleviate the fear, but it still retains that underlying menace that makes Majora's Mask so great.
For example, in the original game you could only properly save by rewinding time back to the first day, and could otherwise only make temporary saves that were scrapped as soon as you reloaded them.
On the 3DS version you can make permanent saves anywhere and can simply reload to a previous save if you run out of time. It makes sense on a handheld, sure, but it also defangs the original game's difficulty a little - if you choose to abuse the save system.
Otherwise the game is largely the same, but efforts have been made to make things a little clearer which should let you see everything the game has to offer.
Especially with those gorgeous new visuals (it looks almost exactly like the Ocarina of Time remake on 3DS)