Very smart interpretation of the theme. I really liked how your movement is actually restrained to the moving character and how enemies are targeting it rather than you. Very clever and fun design.
The minimalist art style is pretty good and clean. My only feedback would be about the audio in general. I didn't really feel like it matched the game's visuals. I also think more effects, like camera shake and chromatic aberration, would work nicely as damage effects.
Since you're using Unity, I’d also suggest looking into Feel by More Mountains. It can really enhance the game feel and help you add a lot of polish very quickly.
Great work!