This was a fun puzzler. I got a little frustrated during the second-to-last level because of the sort of inconsistent response where I felt like I was trying to do the "wave-in-the-rope" trick but sort of couldn't most of the time because physics, except when it finally worked :D But the overall idea was very fun, I'd love to see where you'd go with it especially since you can take the anchors "out of the box" ^_^ (Thought that was fantastic)
Thank you for making this! Cheers.