This sequel failed a lot of things.
You can move with the same keys like any FPS ever played, but in a fighting game it's really annoying. For example to turn around rapidly it takes SECONDS when two or more robots are already hitting you. The powers are just a waste of time than normal attacks. The worst part is: there's no improvement system:
There's no armor, stun res, leg & arm's speed and power to improve, and no enhancements too!
About the graphics, everything it's incomplete: needs more decoration..
I don't know what was Rob thinking, but what I know is, that this "new" way of play sucks because it's SLOW. I prefer the first game, no matter if it's 2D, but the idea is to fight in a single line (as Midway understood with MK9).
And that is why I'm waiting at least for a kind of "One Must Fall 2097 HD" thing. If some enterprise would like to do a sequel for this game, it is totally absolutely welcome to make a new, really complete good OMF, best and more worthy than the first one. Everyone should appreciate that.