The scaling grappling hook is a pretty interesting concept, just unfortunately not the best execution here. Had you been able to refine the movement mechanics and extend the level design, this could have been a pretty charming meme platformer. Good on you for submitting what you had in time (especially as a solo first-time dev!), but I'd suggest trying your hand at some more game projects and perhaps finding a team to work with next jam so you can get the hang of things better. Looking forward to your future stuff!