Really like the concept, but I don't like the splitting into different discrete screens and would rather have the camera be centered on the player. Also the shoot cooldown makes the gameplay feel stiff and slow, and not bouncing on collision exacerbates it. What if the cooldown was soft and applied to the force, meaning I can shoot as fast as I want but with less and less force unless I wait for the full cooldown? And at half the cooldown half the force is applied, or some other non linear proportion. Btw it's totally on theme and I like the art, good job!