That's so neat I liked when it hit the spring ball and the scissors, I think it would be neat if you could some how set it up to be perpetual so that each part some how hit a section that reset a previous part so that when it makes it to the end the previous steps are back in place and it will continue back along the same path over and over. So that the only time you have to push it is the very first time and then it will run infinitely until or unless disturbed.