First off, the art is incredible for 48 hours! Absolutely insane!
That being said, I didnt really understand why the character spawns arrows that hurt him whenever he dashes. Furthermore, the controls are very very clunkly. especially for a bullet hell/hack & slash. I understand that the intent is to use the lance to get around quickly, but it doesnt really work as intended. I would speed up the character a lot, and make his movement more responsive, then you might have something that could be very fun on your hands!