public bool itAngelBtn = false;
       public bool itDaemonBtn = false;
       public bool itQuitBtn = false;
       public bool itBackBtn = false;
       void OnTriggerEnter2D(Collider2D other)
       {
            if(itDaemonBtn)
            {
                 Application.LoadLevel(2);
            }
       }
       void OnMouseDown()
       {
          if(itBackBtn)
        {
         Application.LoadLevel(0);//ВОТ ЭТА СТРОКА НЕ РАБОТАЕТ!
        }
        if(itQuitBtn)
        {
         Application.Quit();
        }
       }