This looks pretty unimpressive, but is the first step to implementing the game mechanics. This is a ball suspended by two rope constraints. Rendering is independent of the actual physics because it was proving impossible to have good looking ropes with the right feel. The ropes actually look more like springs when they move, which works well because they are supposed to be telescopic robot arms.

I can add as many rope constraints as I like, but there will probably be only one active at a time for gameplay reasons. Imagine an orangutan swinging through the trees and you'll have a good idea of the motion I want.