Same complaint as the others except its 8 and I tried again a few times and it's still not working. I assume that it's a bug. Anyways nice game :3 As a mathematician I feel like the collision detection should have implemented something closer to knot theory, but I am wrong because there are many knots that are the same according to knot theory and they all have to be closed loops. Essentially an "equivalent knot" is much broader and probably wouldn't be good for a game like this or learning to tie knots either. Good job on all of it. Pico 8 is nice to see too.