While I've played quite a few jam games that have a grappling hook mechanic, I have to say this has the best grappling hook mechanic out of the all the platforming games I played thus far. The fairy hook has two options: Swinging or pulling, and the physics for both of these mechanics are great and are fairly lenient to allow for player expression, although its still a bit hard. Other games I played with a similar mechanic only allows for swinging or pulling, not both. They can limit your movement by only allowing you to attach to walls, I didn't think of this as negative until I played your game and got a taste of how grappling hook mechanics can be improved! They also usually make using the grappling hook either too easy or too hard, the fairy connection mechanic by itself isn't all that difficult, but the game would be made a lot more fun with levels having smoother difficulty curve. But I understand that it would be hard to make even a single level during a 48 hours game jam, it would be hypocritical of me to fault you for that. I didn't even have enough time to make a in game text tutorial! So good on you for making 3 decently fun levels!