Very cool! Extremely satisfying to get all the balls moving just how you want them to, and the level design forcing you to have them cross over your own path is great! It's a bit frustrating that the balls collide with each other, there were a couple of times I knew I had a system that would work but a couple of errant balls kept breaking things. The physics work really well, but if the balls are moving too fast they will clip through sometimes. Sadly the game glitched on level like 20 and wouldn't let me finish the level, but when I went back to the menu I lost all my progress otherwise I would have played to the end. The curve correction here is spot on, making every janky line into a slick curved swoosh, very clever!