I liked the music. The art was nice. The sound affects added a lot to the game. I kept hitting e to reload. I could not move and shoot at the same time. He just would not. Dashing felt a bit weird. If I was not moving dash didn't do anything. I just assumed I would dash in the direction I was aiming if I was not moving. Once an enemy had me in his sights there was not much I could do on account of not being able to move and shoot. I stood in the corner and shot at anything I could and never cleared the first wave. I can see a lot of potential. There is obviously a lot of talent behind this game. It is rough.
Combat: Bad. UI: Great. Difficulty: Too much. Upgrades: Of what I saw they were not exciting. Speed boost. Slow baddies, Damage up. Magnet. More Money. Faster fire rate. A fun upgrade would be drop bombs that explode when you dash. or Baddies explode if you dash into them while reloading.
If you want you can try out Allura Of The Bully. It is largely about a girl getting wedgies if that is not your thing you can feel free to skip it.