I have now given in another try and have updated my ratings. Overall I liked it. I am not sure if the last room qualifies as a puzzle, but it must've been something fun to program, so I give it a pass. The shadow labyrinth is also not a good idea in my opinion without sound cues when pressing you've pressed all the button. Other than that, I think that the difficulty curve is a bit all over, but since it's a jam, I get it. Great to see an Undertale inspired puzzle game!