This is quite an unique concept.
Here are some suggestion for the controls: Instead of having so many different keys, try to have some do more than 1 thing depending on the context, like T and G (grab and drop) could be the same key, also make it so you have to stay close to the yarn to pick it up. You could also allow the player to move with AWSD and to jump with W and up key.
I spotted a weird bug where the red core got stuck in wall and it got really big.
Also the last level is a little bit clunky, i won because i could still push the ball even with 0 pat's left and this weird bug happened.
This game has potential, you just have to fix some issues and work a little more with the level design, good job!