Hi, thank you so much for playing and finding this bug for me! I've fixed it, and also positioned the motor neurons a little further away from the sensory neurons and zoomed the view in. Does it look better now?
If possible, it would be much better if the font size is larger and the square could be much bigger. I don't think placing the motor neurons too far away from the square would work well. It's easy for people to miss them if they're at the bottom edge and the square is at the top.
So far, I have 'programmed' the character using E,S, P neurons only, as I wasn't sure what I neurons do.