This is such a fun concept! I definitely feel the anxiety rolling in as it gets darker and darker, therefore it feels more immersive than other games I've played so far.
My main feedback would be the wall jumping controls. I was doing great following the tutorial but definitely struggled during the wall jump portion. It could be a skill issue on my side, but I feel if you switched the jump control to say, the Z-key for example, the hand handing character direction can solely focus on the left and right keys vs. left, right, and up (for jump). I hope that makes sense. :)
Overall, great work on pulling off a fun and risky platformer! Exploring the caves and navigating back was super fun. Great job you guys!