Sorry for sharing this late, I'm on vacation in Florida rn, but GamerGuy has told me that the YOF creators friend who claimed to still have the SB3 file has returned home from vacation and is starting to look for the files that he had downloaded. Its gonna take a while, but we hope we can find the game very soon!

Also another screenshot has been recovered by the YOF Search Team!

From this image alone, we can tell that the game had a characters section where you can see all of the characters.