Great drifting idea, music and overall polish!
Coincidentally, I had a similar grappling hook idea in my game as well but for towing. Did you use Box2D physics for the grapple or program it in? I found with Box2D that the rope stretches.
I've found with a few games now that when I go check them through the game jam that I miss out on explanations from the game page such as "Controllers are necessary to play effectively." Tried the keyboard controls first before using a controller (way better).
Also, I'll admit that at first I thought there was only one level: Rockfall Canyon!