What type of controller are you using? I like using my xbox controller because, with the current setup I have, I never have to "move" any of my fingers to perform an action. My right thumb covers both X and A, my index fingers are on the triggers (C is mapped to L, R is my custom one), and my left thumb is on the joystick. Pausing the game is the only real time I'd have to change the position of my fingers. The reason I had the idea to map the two buttons together was because I've never played as Bass before, and when Jay mentioned a dash jump it immediately made me think of Mega Man X, so it would feel more retro and natural to me to have a separate button to dash with. Maybe not NES retro, but SNES retro is just as good for me. Now that I think about it though, there has to be a way to switch the new weapons. You might need more buttons now, unless they're going to have you push start all the time to switch them ala Mega Man.