First off, love the art and general presentation, along with the music. They combine into a great atmosphere.
The game is obviously intended to be high intensity and difficult, given the short levels, but it meant I couldn't get past the second story one. It felt like the controls were sort of sluggish (or maybe it's the carried momentum that was throwing me off?), and sometimes it felt like I was moving at different speeds with the same button presses. I imagine you intentionally made the controls not super tight and sharp, but it it could perhaps for some people make it a bit frustrating.
But anyway, a great entry regardless.