I'll think about the possibility of having non-straight lines, that might be a good idea. I have thought of more than one play mode or difficulty, but the one you suggested had not struck me! Also, I love the "Clocksmith" achievement you have mentioned. I definitely will add it to the game as an achievement once, if, the game comes out! Can you provide me a Discord tag of yours so I can reach out later for the things you have suggested?