Thank you so much for trying the game!
I didn't had lot of time to implement a good tutorial for all the feature, but also i could maybe put a better explanation.
For the grapple, yes it has a cooldown you could watch it from the back of the and when you use it that it reaload. My choice for that was to make the palyer use it just for help shorten the distance in specific situation, otherwise it would be really easy to reach the points to deliver.
Also about the equipment area you are right, but I think it was the only place that didn't bother the player's vision.
Anyway i hope you could enjoy a bit and that you could set a score in the leaderboard :)