[solved] new method were a ball follows a certain person

[Madara Uchiha]

i am sorry i think this topic has already been made i searched but couldn't find anything so can someone tell me how to make a ball follow a certain person i have some guess but i think its wrong i my guess is that the ball that opoint out has a certain bdy and my character has a certain bdy but i don't no how to get it to follow that certain body can anyone help?