woah !!
This is awesome, it WILL make the front page (if tom/wade/liljim/whoever notices it).
The "skins" should be made as different characters which have their own individual moves and stuff.
Also, if I missed it, you should have some kind of overdrive power when you get huge combo.
At the moment, there's nothing wrong with it, all you can do it is add more stuff to it =D!