I find the controls really hard to remember. I can’t play it much because of it. I suggest you do the conventional WASD for movement or maybe arrow keys? Maybe also put a tutorial to make the players understand better.
There's a way to remap the controls yourself, though I don't remember how you do that off the top of my head.
EDIT: So I just booted the game and you have to press the "special move" button on the menu screen. The game will even save your button mapping and even tell you your current mapping on the title screen.