A few months ago, when I was looking for existing 3D platformers for the Sega Saturn, I found out that the classic 2D platformer Castlevania - Symphony of the Night had a Saturn version that released only in Japan. And not only that, but from the looks of it, it looks like nobody has translated it, despite the fact that is the same Symphony of the Night for the PS/PSOne/PSX. Only a bit more updated.
Why did I italicized the word "updated"? Because aside from the new events, stages, powerups, and playable characters, it was somehow filled with some bugs. Also, it appeared that some stages were cut down for reasons unknown. < Probably the size of the game.
So, I wish that somebody (or some people) would not just translate the game, but also bugfix the game, and add whatever stage sections, or stages per se, were cut down (if possible).