Great idea with excellent execution. Feels quite polished and has absolutely great atmosphere. Noticed some really cool details like the level counter showing you the actual level you're in with its flickering. I also really like the generous checkpoint placement.
Once the dash jump comes in you can unfortunately just pretty much fly over the entire map with two or three jumps which almost feels like an unintended exploit. Made the end of the game a bit anticlimactic and easy for me. xD
Overall really good game. Very curious to see where this will land in the final rankings. ;)