Sorry about the movement of the cradle, I didn't have much time to do this. PLZ DOWNLOAD IT DOSEN'T REALLY WORK WELL IN JAVA (You'll see what I mean if you try) AND IT IS JUST GENERALLY WAY BETTER DOWNLOADED!!!! Anyway, this is just a simple animation where (In case you didn't know) a ball hits into another 2 or more balls and carries the force of the hit onto the last ball, making it move.