Pull the Pin funktioniert nicht

All balls have to go into the pipe … can you remove the pins in the right order and make it happen?  In this game full of satisfying graphics and innovative levels, you can challenge yourself, your brain, and your friends!  It should be simple: gravity pulls the balls down towards the pipe.  Can you help out and flip away the pins and get the balls to where they are supposed to be?  It’s you against physics and the tricky levels — WHO WILL WIN?  But then pins are in the way!  But wait: there is another level of trickery!  Sometimes some of the balls are colourless: before they go into the pipe, they need to touch a color ball, so the color spreads to them as well. So simple yet so tricky!