A little kid shrinks himself so that he can travel into the body of his grandfather. Here he has to kill the kidney-stone his grandfather is suffering from.A little kid shrinks himself so that he can travel into the body of his grandfather. Here he has to kill the kidney-stone his grandfather is suffering from.A little kid shrinks himself so that he can travel into the body of his grandfather. Here he has to kill the kidney-stone his grandfather is suffering from.