Wow, the artstyle is stunning!
Visuals and music/sound design are great. The menus are creative and intuitive. The narrative is also good and I really liked the twist.
Some minor things:
-The cable puzzle doesn't communicate that you need extra parts to progress, if you try it at the very beginning it's easy to think that you're just not solving it correctly.
-At the start of level 2, if you go left, you fall infinitely and have to restart
-If you stand at the top platform and stand in the edge of the screen, none of the boss' attacks hit you.