anchor.diff:        setPosition(taotie, i, mousePos.x, mousePos.y);
         _taoties.add(taotie);
   
  -      StreamExt.delay(mouseMove, new Duration(milliseconds : i * 100))
  -        ..listen((evt) => setPosition(taotie, i, evt.offset.x, evt.offset.y));
  +      var streamSub = StreamExt
  +                        .delay(mouseMove, new Duration(milliseconds : i * 100))
  +                        .listen((evt) => setPosition(taotie, i, evt.offset.x, evt.offset.y));
  +      _taotieStreams.add(streamSub);
       }
   
       Taotie.onHit.listen((HitEvent evt) {
         evt.starium.explode();
  +
  +      removeChild(evt.taotie);
  +
         if (evt.taotie.isBoss) {
           _gameOver();
         } else {
  -        removeChild(evt.taotie);
  -
           // once the taotie object's removed, let's play the taotie break flipbook in its place to show
           // taotie breaking!
           var textureAtlas = _resourceManager.getTextureAtlas("${Characters.TAOTIE}_break_atlas");
  
positive.code:   }
  
    _setupStariums() {
      new Timer.periodic(new Duration(seconds : 3), (_) => _spawnStarium());
  
      // every 8 seconds add another second that spawns a starium every 1-3 seconds
      new Timer.periodic(new Duration(seconds : 8), (_) {
        new Timer.periodic(new Duration(seconds : _random.nextInt(3) + 1), (_) => _spawnStarium());
      });
  
      // every 12 seconds speed up the stariums
      new Timer.periodic(new Duration(seconds : 12), (_) {
        _minStariumTime = max(1.0, _minStariumTime - 1.0);
        _maxStariumTime = max(2.0, _maxStariumTime - 1.0);
      });
  
      Starium.onDisposed.listen((starium) {
        _stariums.remove(starium);
  
negative.code:                    "..but it looks like we have a STARIUM shower inbound.." ]),
        new Dialog(Characters.BOSS,
                   [ "Don't get hit by them STARIUMs or you'll CRACK!!",
                     "Follow me lads, I have a cunning plan..",
                     "...",
                     "RUN!!" ])];
      return DialogWindow.Singleton
  