I liked the art style and animation in terms of character design, enemy design and 2D-3D-blend. The sound worked, although it didn't do a ton for me, personally, just providing feedback to my inputs, which is fine by me.
What I really didn't get was the idea of gameplay behind it: I could reasonably easy evade any enemies and there was the hint about blue fog, which presumably helped, but it was hard to tell, whether this was because of me running away or the fog obscuring me. I didn't find any clues whatsoever in regards to the combinations, so I just brute-forced all of them (which, admittedly, wasn't that hard). I am not sure if this is because I didn't see any clues or there weren't any.
Are there any consequences to being hit by enemies? It seemed like there was some sort of hp loss and re-fill at the green spots, maybe, but it never actually came into play.
Also: I reached the first floor, tried to get past the barricade of bones and glitched through the floor to my (presumably) death.