Core Mechanic: I enjoyed figuring this one out quite a bit; the tutorial was just informative enough to push me in the right directions, and I was able to figure out the details from there. My main issue is that sometimes the thing would just follow me wherever I went and I couldn't figure out why it was doing that or if there was a trick involved, so my performance was mostly random
Game Feel: The lack of feedback on all of my actions was a bit of a drag; the recorder and wind never made a sound, the screen transitions were just long fades-to-black, and the hiding mechanic didn't seem to work consistently. Also I had to wait like a whole minute in between finishing a run (pass or fail) and going back to the main menu.
Visuals: The visuals are very straightforward and clear; the darkness, the eyes, the flashing, and the text pop-ups are sufficiently unnerving (especially the eyes)
Sound: The droning ambient noise was nice and creepy, and the dragging and alarm noises associated with the thing chasing me were panic-inducing
Theme: There doesn't seem to be much "Small Input, Big Output" here, unless we count the very long transitions resulting from individual mouse clicks and game-overs