This was a cool idea, but the execution could've been better. The dust colletion, with different types of dust is really clever. Also that the ammo is spawning around you. The art is great.
A bit unintuitive to know right from the start how to play optimally. holding down rotation keys and space, and also moving at the same time was a bit hard for the fingers. (maybe a better key placement so, that it's good for 2 hands would've been better) I find it a bit unneccessary, to have an option to spin in 2 different ways, so that way the spinning button was kindof not needed, i think an automatic spin would've been better, or if we just toggled those buttons instead of holding. The shooting part was a bit like an autoshooter, i couldn't really figure out how could i aim better, and the fact that the bullet's speed was based on my momentum did not help either.
How i imagine i would've made the mechanics: have your base automatically rotate, but you can change the direction. Shooting has a set speed. Where your mouse is at, that's where you are shooting, and the closest ammo to your aim gets shot out. This way the gameplay would be more than just movement. I would also consider just sticking the ammo to the other ammos the way we touched it, but it requires testing for me to know if it would be better.
So my biggest complaint is that you basically just had to move, the rest is basically just holding 3 buttons. At least that's how it felt for me.