Super fun game! Took me way back to playing ropers on Worms Armageddon, haha! Really satisfying to swing around and carry momentum. Also, I liked the idea of highlighting the player character, really helped you keep track of where you are. (Edit: Also, thank you for making checkpoints!!)
Had a few little quirks, like someone mentioned, roping straight horizontally kind of messed with your momentum, and a couple times I clicked but didn't fire, although I think it was because there was nothing to grapple to. Maybe showing the rope shooting a short distance and then disappearing might indicate a little better to the player?
Anyhow, those were just small nitpicks, overall really enjoyable and super engaging! Great job!