A nice simple and spin for an endless shooter. The sounds and visual feedbacks are really well done. Feels really satisfying to fight. When you die it's really easy to just hop back right in. I could see myself playing this game for a long time while watching some YouTube videos.
A ground texture would've been nice, and I'd have preferred more particles for extra juice, but those are just minor nitpicks. If you want to continue to work on this, I'd say more enemy types would be make this much better.