The main idea of the fights is to be pure adrenalin rush.

I'm talking about fighters bounces of walls, ceiling, spinning in mid air, total mayhem of speed and sound/hit effects . Look at it as wu-hsia movie on speed. Like you just shot a bullet inside a bullet proof room and it's bouncing inside, ricocheting, and you are trying to avoid it or catch it.

As for fighting, since it is a 'light' game I would like to be very simple with few basic actions that you can do. Since it will be a mayhem when you reach the momentum and speed inside the room there would not be time to just execute any kind of combo.

Maybe this video describe it. Watch the balls and imagine them in confined space.