Hey!
I really liked your concept and really liked the idea of a character than can't stop moving, it added a unique layer to your game that set it apart from a standard shoot-the-enemy kinda game.
I have a couple suggestions. First, it was really difficult to be precise when firing at the enemies because of the bullet size and the constant moving which felt more frustrating than challenging. I also got hit by one of those 'x' hazards when it spawned in at random, killing me without any chance at responding.
I had fun playing, I think with a bit of refinement it would really be amazing. Well done!