I started very late the game jam, so I made the tutorial in a rush haha. In fact, you have a wall jump and when you catch the ball you character do a second jump. In the hook level, you have to throw the ball to the hook, jump and catch it, and for the second hook you have to use wall jump.
I had made the choice to make a challenging platform and puzzle game. When the player start a new level, I wanted him to think "oh my god it's impossible" and when he tries and sees the solution he thinks " I finally can do it". Then he finishes the level with 0.2 time remaining and says "Yeah I did It !". (I don't know if what I'm saying is understandable) Anyway, I totally messed up haha. Thank you very much for your advices about puzzle games and the difficulty. I will definitely add a better tutorial, and I will balance out the difficulty curve. (I tested my game alone and more I played the better I got, now I can finish the game easily and it didn't help me haha).
I'm glad you like the game, despite this big difficulty problem! Your feedback is really helpful !