code: function() {
          var finalpos = this.initialPos;
          this.displayTween = me.pool.pull("me.Tween", this.pos).to({y: finalpos }, 200);
          this.displayTween.easing(me.Tween.Easing.Quadratic.In);
          this.displayTween.onComplete(this.onHidden.bind(this));
          this.displayTween.start();
      }
docs: hide the mole
  goes into the hole