This was a lot of fun to play. I've seen some similar ideas but this was very well executed and sometimes a old idea becomes a new just because it's done really well and I think that's roughly true here. I did see a one a really big issue that I would love to see fixed though which is I hate your keyboard map. Enter space and wasd are not something that I can reach all the same time. And given the Split Second timing this sometimes requires that's just not okay. Luckily that should be very trivial to fix and so I'm not letting it affect my rating.
The other thing that I would love to see you fix later is some kind of continue as I would love to come back to this but I doubt that I want to finish it all in one session.