One thing I want to say about Secret of Mana is that it's a technical feat. It's not perfect, but as an action RPG it achieved a level of fluidity that many modern ARPG's still strive to meet. Multiple Weapons, Smooth attack transitions, charge attacks, spells, all of it done in real time with glitches that are no more noticeable than most modern games on the PC or consoles. It really wasn't until later in the Playstation era that comparable ARPG's started coming out.
The tragedy was all the cut content from the botched SNES-CD deal. It would be nice if Square-Enix would go back and make a restored, perfected version with all that planned content intact.