Apparently this is a revolutionary new combat system where you control two characters at the same time on two playfields. Wow! Exciting or what? It may well be, if only it worked well. Unfortunately, the one character you get to 'be' is a bit crap. He's really slow, has no weight or feel to his moves, and I could find only about two punches and kicks for him to do. The computer opponent isn't much better and seems to want to get beaten up.
It's an interesting idea to control two fighters at once, but it hasn't been done at all well. A novel idea trying to disguise a bad game.