I don't tend to play wave shooters but still found this very fun, especially once I picked up on the fact the player could transition to the negative space during and enemies death. Along with that the audio, visuals just felt crisp and polished and had a good feel to it, good time overall!
If you have time, would love to hear what you think of my game; https://itch.io/jam/gmtk-2019/rate/461074