I had some fun with this game as a kid.
Like most western platformers, the controls and hit detection were a mess, but levels weren't really that bad. They had some maze-like bullshittery here and there but for the most part it felt coherent.
It looked actually pretty good (although some bosses looked like they made them on MS Paint, but were really big sprites so it was OK), and the music and atmosphere is something else.
I didn't even know there were different versions, I think I played the Acclaim version, but not sure. What are the differences, if any? And why was it published by 2 different companies? I assume Sunsoft did the euro version?