You mean a PvP match isn't it? well its a cool idea but is it really not awkward? I mean playing using your keyboard, i can remember when i was a kid also i usually play street fighters but my opponent is actually an AI, at that time cheats are not yet well known, But now kids these days or even adults are much resourceful. Actually cheaters or hackers can't be avoided these days, it may also be risky but i would love to try it. Further suggestions you must conduct a survey also for what's uptrend this days it would also help you to gain more players and boost its popularity.