Hi! Thanks for your suggestions! I do agree with you! In fact, I was trying to fix those bugs but couldn't. Especially the one about the ball flying away. I wanted the ball to get back to initial position but couldn't find a way to do that yet, and I'll need to fix the collisions on the corner of the cristals cause that is not supposed to happen, I know the ball gets stuck it happened to me too. Thanks a lot for your comment and review!