RPG for the SNES by Square. Never released in the US; I only know it through a bunch of cool SPC dumps lying in my Music folder.
There appears to have been a determined effort to translate Bahamut Lagoon into English. The homepage is located at http://ynt.darkmazda.com/bahamut.html, although it hasn't been updated for around a year at time of writing. The screenshots at the bottom look pretty sweet though.
All the English reviews of the game that I can find look amazingly positive, however since the game is only in Japanese, this is to be expected as the review-writers are probably devoted fans of the game.
Another reason for me to learn Japanese... sigh...)