Your implementation is horrible.
I mean, it's really, really bad. No sound, none of the standard controls, your "players" look just like your "balls" and it really needs some kind of visual connection between a player and its ball, like making the player solid yellow and the ball striped yellow, and there are SO many cases and possibilities you haven't explored --what if somebody's on the wrong ball? How about putting more than one pair of balls up?
But I've never seen anybody put this concept up on NG before. It's a neat concept, too. So, DO something with it. Add on the usual frills and appearance things, a little music, maybe add a computer player to compete against (or one to work WITH, and you have to nudge the dumb #(*#$&% now and then :) ), and come back with it.