Way too hard but very on-theme xD The game works well but I think adding some forgiveness (snap the parts when within tolerance) and then giving some kind of score based on quality would add a lot to the game.
Thank you for the feedback. There is a percentage system in the back end. I however ran out of time and the calculations were off. So I replaced it with a check or a cross mark. Next jam I probably should spend more time on time management.