This has some serious bugs. At times the obstacles seem to get "stuck" with the mouse and no matter where you click, the object jumps to that point, even while trying to pick up another object or click the play button. This happens after letting go of the mouse button, placing it at a specific location, and moving the mouse somewhere else before clicking again. It happened in level 2 and now I'm stuck on level 3 because every time I click the play button, the last obstacle I touched moves out of the ball path.