As someone who also did some physics stuff in Godot for the Jam, Your rope physics are what I couldn't figure out how to implement in my game and I am slightly jealous.
The controls are interesting, and I'm not sure if that's good or bad yet. Not being able to control when the rocks fall meant I was waiting for a while and panicking when a bunch fell in rapid succession. But a solid concept that is doing what it set out to do!