Pull the Pin

Your mission is clear: all the balls must reach the pipe. Think you can remove the pins in the correct sequence to achieve this?

It seems straightforward at first: gravity pulls the balls down into the pipe. However, the pins are obstructing their path! Are you capable of clearing the pins and guiding the balls to their designated destination?

But there's an added twist! Occasionally, you'll encounter colorless balls: they must first make contact with a colored ball before proceeding to the pipe, allowing the vibrant hue to transfer. So easy yet so cunningly complex!