First off, Let me say this is a great concept, with the potential to be fun and exciting. But since it just got released there are no skins, no weapons, and no enemies that are harder to defeat, so it can get boring pretty fast. I suggest first adding more enemies, maybe some with more health and some that can shoot. Also adding skins that unlock after you complete levels would make it more interesting. Also adding new ways to attack would make this game more exciting, but for now I’m going to keep my rating at 3 stars until the game is further improved.