Interesting game with some nice smash-stuff mechanics. I see it often that a mouse is used, only LMB is used and never RMB. You could have tied that into weapon switching, which would have worked out better IMO. Also, with a platformer, jump is usually part of the controls that the other hand takes care of when your main hand is assigned to movement. What I mean is trying to jump and do so diagonally, is a pain when you are doing it all with your left hand. In this concept, you probably could of just had up (W) for dump and simplified your control scheme. Anyway, I think it's an interesting idea that you could take further and make a more complete game out of.