I think the Turbo version wins out because of its smoother scrolling.
It's technically superior (plus they fixed those broken heal potions), but you have to give the SMS version props for being the original. Reading the article also made me want to finally buy the Game Gear version.
I believe there is something developing now thanks to that article to get this game finished.
Really?! That would be awesome.
There are so many great looking games from the 90's out there that were finished or nearly finished which were never released for whatever reason. There should be a website out there dedicated to these games and the goal of getting them released. A few Neo Geo protos have been released/unearthed in recent years. I'd love to see more of this.
...and Tengai Makyo III for PC-FX!