public void OnTriggerEnter2D(Collider2D collision)
 {
     try
     {
         if (collision.gameObject.CompareTag("Finish"))
         {
             Goomba goomba = gameObject.GetComponent <Goomba>();
             goomba.SendMessage("NotifyAll");
             StartCoroutine(lose());
         }
     }
     catch { }
 }