I found this amazing article
(Apr 23, 2016) by chance while scrolling across SNESCentral's Twitter feed. Matthew Callis
had been getting lots of mostly prototype SFC/SNES game circuit boards and this Sample board for this game (unfinished variant) is one of them. There's a download link for the Sample ROM too. You can see some screenshot comparisons - the sample and final versions looked quite different in several ways.
* As for your patch of this game it does look very lovely! The game itself was a surprise to me when I checked the main page a few days ago as I don't think many of us had known about it beforehand. The English fonts do make the special, mainly gray, menu screens pop out into life! The visuals look good. I'm sure it was worth translating. Yet another Banpresto game ticked off from the un-translated lists. Let's hope your group can do some more untouched Banpresto games. Their games on the SFC were renowned for their lush visuals and laser-focused mechanics, I guess.
* Game info links: