First, thank you so much for testing the game and also thank you so much for all the intresting feedback you gave!
For the grapple you are right, i noticed that is quite meaningless having it at the current state. Also the i thought was funny to make people search for the delivery spot, but i noticed also that most of people get frustated from not find it easily.
Another thing i had to do better is the tutorial and mention in a better way that there is also a "underground" section.
In the end i tried to put lot of different features but in term of time and usability, they turned out against me.
But in doing so, I learned how each person interacts differently with the game, noticing many gaps that I didn't see because I rightly made the game from my perspective.
So I really thank you so much for this feedback, I will save myself for the next Jam!