It feels a little bit unfinished at the current state. You could expand on the concept to make something similar to blast corps. Maybe mix it with some bulletstorm abilities. With a score counter, sound fx and a explosion effect. A Tip for the graphics: Use more desaturated colors. And dont use AddForce for the movement if you dont want the player to get faster and faster. You could use velocity = ? . Keep up working on it!
(Maybe you feel like you could never compete with the other developers. But thats not true. if you keep practising you will get better and better)