While I don't fully enjoy the creepy coconut staring into my soul, I do quite enjoy the underlying concept of the game. Using the mouse as a "paddle" to control the real "player" (ie the ball) is a great twist on the game.
I think all this game really needs is a kick-ass theme to go with it and really tie it together and emphasize the unique-ness of the controls. I personally think diving into some sort of sport would be neat. Maybe you are a tennis player bouncing a ball to defend against a zombie apocolypse. Again, something like that to really drive home the really awesome control scheme.