     override func willMoveFromView(view: SKView!)
     {
         // Fire the notifiers
-        for notifier in notifiers
+        for notifier in _notifiers
         {
             notifier.gameSceneWillBeMovedFromView();
         }

    override func didMoveToView(view: SKView!)
    {
        // Fire the notifiers
        for notifier in notifiers
        {
            notifier.gameSceneDidAddToView();
        }

    {
        super.didEvaluateActions();
    
        for system in _systems
        {
            system.didEvaluateActions();
        }
