On another site I contribute to, the "Soundtrack of the Month" pick was FF USA (Mystic Quest).
Another editor on there, who is also a chiptunes artist (zen_albatross), commented that the boss battle music from this game was one of the best battle themes ever.http://www.youtube.com/watch?v=VJ0KilHkxFk
Wow. He's kinda right. Doesn't this sound like it belongs in an Ys game? This is so friggin' awesome. Super Famicom pumped out ridiculously good tunes.