Art, story, atmosphere and music are really good
I feel like the gameplay is a bit weird, especially when you try to go back to the surface, since compared to when you fall down, if you try to reverse the gravity and "walk" on platforms, it actually doesn't let you do that because of small collisions
I feel like the "reverse gravity" ability could be improved too, feels a bit weird / difficult to use, and if you're trying to use physically accurate physics and to just reverse it, I'd suggest you to go for a more customized way of doing it