I found some kind of bug that prevented me from progressing...
When I beat the room where you needed to get the light up high enough to activate both sensors, I was unable to go to the next room. When I ran offscreen, my character just kept going and I could see the light getting farther. It also looked like it was trying to load the next room, as it would flicker into visibility for a frame at a time before I was brought back into this room, and sometimes it lagged for a few frames like it was loading something.
That said, everything I did get to play through was phenomenal. I absolutely loved this game. The visuals, the sound, the mechanics... Everything was wonderful.
The only non bug-related critique that I could give you would be to increase the jump height a bit. It'd make you feel more powerful. You'd also probably have to change the levels a bit to compensate, but the more powerful feeling would be worth it, in my opinion.
*edit: I tried to include a screenshot of the location where the bug happened, but Itch wouldn't let me include it for some reason