This is a cool idea! I've seen a few other grapple hook type games, but this is easily the most unique take on it. Switching the gravity around is a neat mechanic, and the level design compliments it nicely. I liked the way the world is organized as a whole with a hub in the middle and sections on each side, and the art style for each section helped them feel distinct. The main issue I noticed is that the grapple controls felt inconsistent and often found that I just didn't attach to the point or clipped into the ground, which made navigating tougher areas a bit frustrating. It would also be nice to be able to zoom out (especially in the purple area where I felt like I was just guessing where to go and land), but that's much more of a nitpicky thing. I think this game could be really great if you ever decide to go back and polish it, the mechanics have a lot of potential. Great job!