Awesome game!
Love the art style, the backgrounds are particularly terrifying.
Searching through all the memory with difficulty and weirdness gradually going up was really interesting. For the last ones, you even need to think about specific strategies in order to get them.
One (very minor) problem I noted: (spoiler alert!) the two-headed skull horse doesn't "see" you've recruited the fossil, and still gives you clues about it. Also, Boss Luna doesn't seem to make a difference between Noire (or Luna) and Root in her coded message. Overall, maybe a little bit more adaptativity in dialogs could make the game a bit more immersive. But really, this isn't very important, and the game is great.
Eager to see future updates!