It's in japanese, but many of us played though that game many times it shouldn't be a issue anyway.
Graphically, it looks like the GBA version (with FFRK sprites for the battles), but plays similar to the old NES version (the invisible lady of Cornelia even appears here!).
A good tribute to not only the game that started it all, but the entire Final Fantasy series in general.
Happy 30th anniversary Final Fantasy! May the fantasy never end!