I enjoyed this puzzle game and finished it. Two things, design-wise. I think the gravity reversal bool is too OP, if that makes sense. Several levels can be solved by wiggling midair. Second is the problem of the slow Z axis rotation when reversing gravity. It makes it quite confusing to tell how far along the X axis we are in space. Several times I've hit spike I wouldn't have expected to hit due to that. If you had 3D art, this would be easily solvable with a local Z axis 180. With 2D, not so easy. I would probably just flip the sprite, even though it's less visually elegant. Gameplay über alles, as far as I'm concerned.
Art is consistent and pleasant. I just thing there is a bit of an overuse of grey. I also didn't like it that the spikes didn't change when they were harmless. That confused me on one of the early puzzles because they look the same whether they are on or off.
I want to marry your music. I'm already married so I can't but the music was excellent. I was bobbing my head throughout. Though with that said, I do think it doesn't really fit your game very well. But hey, I enjoyed it.
I don't think you guys hit the theme at all. It's a game about booleans. It works, just not with the theme, from my perspective.
Enjoyable entry.