Such an interesting concept! You've hid them well! The theme is great as well as very original gameplay!
I can only suggest some form of audio would elevate your game to the next level really easily.
Question: How did you pull of the hotlinks to your twitter and itch.io?
That was really neat!
(Compared to the rest of the comments, I got stuck at 5/10... )
(It would be fun if you could release a guide after the game jam for use noobs)
Well done!