Hi!
Your game fit the retro theme very well, I applaud you! The art is yet another modern/futuristic, sci-fi, close to neon-style art which I really appreciate. The controls were very responsive and the turret constantly spinning, only allowing you to change direction, was a great twist on other similar games, albeit I did have a bit of a hard time hitting my shots with this mechanic.
The ammo as a pickup was a neat change which forces you to take risks, which is a great improvement from games similar to this that basically just allow you to sit still. The SFX matched the gameplay really well too. The music itself, while not bad itself, could've been a bit more "intense" or "hyped" if that makes sense - to my liking that is.
On top of that, the slow introduction of multiple enemies was a nice touch!
Oh! It's not any critique at all, but perhaps you could consider making points go up more than "1" per picked up 'coin'. Like 10 or 100 per coin, it makes it feel a bit more impactful and I personally think it'd add a bit to the chaos that becomes the game as you go longer and longer.
Thank you for your submission!