For me the main issue is the rope control: I had such trouble just connecting it from one point to another. I don't know what your physics engine is like, but there might be some simple parameter tweaking that can make it feel more like a real rope. Maybe I would get the hang of it eventually, but let's just say "you'll fall at least once" is a vast understatement for me at this point. I like the simple level design and how you introduce the mechanics. Putting up platforms is such a simple but promising idea, I bet you could do a lot with it!