This was a really cool twist (up to you if pun is intended lol). I like the originality and simplicity - awesome stuff!
My only really minor complaint was the turning was so stiff and rapid. A real slight blend/lerp will smooth that out.
Thanks for the feedback! The movement was a real coin toss for me. My biggest worry is that the ball would go through a gap and the player might feel the smoothing prevented the wall from getting there in time. Looks like the opposite happened! Lol