l don't know if this is intended or not, but at the end I threw the ball on top and I floated in the air a bit. What I'm thinking is that was intended because of the chain, or not.
Thanks for your comment :)
There is a problem with falling turning to floating when ball is in the air. Although using ball as "physics breaking double jump" was intended.
I was starting to create sprites and get them working for the chain to clarify the connection, but ended scrapping them because of time (like most of thought features, like enemies) and them messing up collisions.