I'm sorry I know I should make a tutorial but I'm really struggling with the time, I even missed one boss because there's really not much time left so I put the game instructions on the game page which explains game mechanics like how to attack, parry, dash, skills, basically everything.
As for the control, my game support a generic gamepad but you will have to configure the button manually if my keyboard control isn't to your liking.
Oh well thanks for trying my game and the feedback too!