Thank you so much for your feedback and for playing my game! It really means a lot to me.
Regarding the playroom: after leaving the room, there's a lever lying on the floor. You need to pick it up to progress further. I'll most likely add a highlight to objects like this to make them easier to notice. In general, I'll go through the game and improve the visibility of any important interactable objects that players might miss.
I've taken all of your feedback into account, and I'll be working on fixing these issues as soon as possible. I really appreciate you taking the time to share your thoughts. Thank you!