If this is all about the game, then the first time in need is the visual of the fighting game you are planning, why visual? Because a gamer is more likely to see the visual first to play the game. In addition, the development of the game should also be good, such as the Android game C.A.T.S, the game is simple, but the players will continue to seek perfection with their up grade player. Your idea is very good, but I think it will be very difficult to implemented