===================================================================
--- original.js
+++ change.js
@@ -1,4 +1,54 @@
+var DecorativePlant = Container.expand(function () {
+	var self = Container.call(this);
+	var plantGraphics = self.createAsset('decorativePlant', 'Decorative Plant Graphics', .5, 1);
+	var swayDirection = 1;
+	self.sway = function () {
+		plantGraphics.rotation += swayDirection * 0.01;
+		if (Math.abs(plantGraphics.rotation) > 0.2) {
+			swayDirection *= -1;
+		}
+	};
+});
+var TreasureChest = Container.expand(function () {
+	var self = Container.call(this);
+	var chestClosedGraphics = self.createAsset('chestClosed', 'Closed Chest Graphics', .5, .5);
+	var chestOpenGraphics = self.createAsset('chestOpen', 'Open Chest Graphics', .5, .5);
+	chestOpenGraphics.visible = false;
+	var isOpen = false;
+	self.toggleChest = function () {
+		isOpen = !isOpen;
+		chestClosedGraphics.visible = !isOpen;
+		chestOpenGraphics.visible = isOpen;
+	};
+	LK.setInterval(self.toggleChest, 5000);
+});
+var FishFood = Container.expand(function () {
+	var self = Container.call(this);
+	var foodGraphics = self.createAsset('fishFood', 'Fish Food Graphics', .5, .5);
+	self.speed = 1;
+	self.move = function () {
+		self.y += self.speed;
+		if (self.y > 2732) {
+			self.destroy();
+		}
+	};
+});
+var Bubble = Container.expand(function () {
+	var self = Container.call(this);
+	var bubbleGraphics = self.createAsset('bubble', 'Bubble Graphics', .5, .5);
+	self.speed = -0.5;
+	self.move = function () {
+		self.y += self.speed;
+		if (self.y < -50) {
+			self.destroy();
+		}
+	};
+	bubbleGraphics.on('down', function () {
+		LK.effects.flashObject(self, 0xFFFFFF, 300);
+		self.destroy();
+	});
+});
 var Fish = Container.expand(function () {
 	var self = Container.call(this);
 	self.move = function () {
 		if (!self.directionChangeTime || LK.ticks - self.directionChangeTime > self.directionChangeInterval) {
@@ -1186,8 +1236,52 @@
 	};
 });
 var Game = Container.expand(function () {
 	var self = Container.call(this);
+	self.updateElements = function () {
+		var children = self.children.slice();
+		for (var i = 0; i < children.length; i++) {
+			if (children[i] instanceof Bubble || children[i] instanceof FishFood) {
+				children[i].move();
+			}
+			if (children[i] instanceof DecorativePlant) {
+				children[i].sway();
+			}
+		}
+	};
+	LK.on('tick', self.updateElements);
+	for (var i = 0; i < 5; i++) {
+		var plant = new DecorativePlant();
+		plant.x = i * (2048 / 5);
+		plant.y = 2732 - 50;
+		self.addChild(plant);
+	}
+	var treasureChest = new TreasureChest();
+	treasureChest.x = 2048 / 2;
+	treasureChest.y = 2732 - 100;
+	self.addChild(treasureChest);
+	var feedButton = new Text2('Feed Fish', {
+		size: 100,
+		fill: '#ffffff'
+	});
+	feedButton.anchor.set(.5, 0);
+	feedButton.x = 2048 / 2;
+	feedButton.y = 50;
+	LK.gui.topCenter.addChild(feedButton);
+	feedButton.on('down', self.feedFish);
+	self.feedFish = function () {
+		var food = new FishFood();
+		food.x = 2048 / 2;
+		food.y = 0;
+		self.addChild(food);
+	};
+	var bubbleSpawnTimer = LK.setInterval(self.spawnBubble, 2000);
+	self.spawnBubble = function () {
+		var bubble = new Bubble();
+		bubble.x = Math.random() * 2048;
+		bubble.y = 2732;
+		self.addChild(bubble);
+	};
 	var aquarium = self.addChild(new Aquarium());
 	LK.stageContainer.setBackgroundColor(0x008080);
 	var fishes = [];
 	var fishTypes = [Wrasses, Parrotfish, Dartfish, MoorishIdol, Tangfish, Bannerfish, Butterflyfish, Mandarinfish, Lionfish, Surgeonfish, Pufferfish, Clownfish, Angelfish, KoiFish, EmperorFish, Goldfish, Sunfish, GuppyFish, BettaFish, DiscusFish, NeonTetra, OscarFish, PsychedelicFrogfish, FlameScallop, RibbonEel, LeafySeaDragon, ClownTriggerfish, ElectricBlueDamsel, YellowTang, FlameHawkfish, RoyalGramma, FlameAngel, BlueTang, Moonfish, Starfish, CardinalTetra];