===================================================================
--- original.js
+++ change.js
@@ -1,4 +1,80 @@
+var TreasureChest = InteractiveElement.expand(function () {
+	var self = InteractiveElement.call(this) || this;
+	var chestGraphics = self.createAsset('treasureChest', 'Treasure Chest Graphics', 0.5, 0.5);
+	self.isOpen = false;
+	self.coinReleaseRate = 3;
+	self.releaseCoins = function () {
+		if (self.isOpen) {
+			for (var i = 0; i < self.coinReleaseRate; i++) {
+				var coin = new Coin();
+				coin.x = self.x;
+				coin.y = self.y;
+				LK.stageContainer.addChild(coin);
+			}
+		}
+	};
+	self.interact = function () {
+		self.isOpen = !self.isOpen;
+		chestGraphics.texture = LK.getAsset(self.isOpen ? 'chestOpen' : 'chestClosed', 'Chest Graphics', 0.5, 0.5).texture;
+		self.releaseCoins();
+	};
+	LK.setInterval(self.performInteraction, 10000);
+	return self;
+});
+var IntelligentFish = Fish.expand(function () {
+	var self = Fish.call(this) || this;
+	self.intelligenceLevel = 10;
+	self.avoidPredators = function () {
+		var predators = self.getNearbyFish().filter(function (otherFish) {
+			return otherFish.size > self.size && self.distanceTo(otherFish) < 300;
+		});
+		if (predators.length > 0) {
+			var escapeVector = {
+				x: 0,
+				y: 0
+			};
+			predators.forEach(function (predator) {
+				var angle = Math.atan2(self.y - predator.y, self.x - predator.x);
+				escapeVector.x += Math.cos(angle);
+				escapeVector.y += Math.sin(angle);
+			});
+			self.targetRotation = Math.atan2(escapeVector.y, escapeVector.x);
+		}
+	};
+	self.seekFood = function () {
+		var foodSources = self.getNearbyObjects().filter(function (obj) {
+			return obj instanceof Food;
+		});
+		if (foodSources.length > 0) {
+			var closestFood = foodSources[0];
+			for (var i = 1; i < foodSources.length; i++) {
+				if (self.distanceTo(foodSources[i]) < self.distanceTo(closestFood)) {
+					closestFood = foodSources[i];
+				}
+			}
+			self.targetRotation = Math.atan2(closestFood.y - self.y, closestFood.x - self.x);
+		}
+	};
+	return self;
+});
+var FishFeeder = Container.expand(function () {
+	var self = Container.call(this);
+	var feederGraphics = self.createAsset('fishFeeder', 'Fish Feeder Graphics', 0.5, 0.5);
+	self.foodReleaseRate = 5;
+	self.releaseFood = function () {
+		var food = new Food();
+		food.x = self.x;
+		food.y = self.y - feederGraphics.height;
+		LK.stageContainer.addChild(food);
+		var nearbyFish = self.getNearbyFishWithinRange(500);
+		nearbyFish.forEach(function (fish) {
+			fish.rushToFood(food);
+		});
+	};
+	LK.setInterval(self.releaseFood, 10000);
+	return self;
+});
 var Bubble = Container.expand(function () {
 	var self = Container.call(this);
 	self.liftSpeed = 3;
 	self.on('tick', function () {
@@ -37,25 +113,8 @@
 		});
 	};
 	LK.setInterval(self.releaseBubbles, 10000);
 });
-var FishFeeder = Container.expand(function () {
-	var self = Container.call(this);
-	var feederGraphics = self.createAsset('fishFeeder', 'Fish Feeder Graphics', 0.5, 0.5);
-	self.foodReleaseRate = 5;
-	self.releaseFood = function () {
-		var food = new Food();
-		food.x = self.x;
-		food.y = self.y - feederGraphics.height;
-		LK.stageContainer.addChild(food);
-		var nearbyFish = self.getNearbyFishWithinRange(500);
-		nearbyFish.forEach(function (fish) {
-			fish.rushToFood(food);
-		});
-	};
-	LK.setInterval(self.releaseFood, 10000);
-	return self;
-});
 var InteractiveElement = Container.expand(function () {
 	var self = Container.call(this);
 	self.interact = function () {};
 	self.performInteraction = function () {
@@ -408,31 +467,8 @@
 		});
 	});
 	return self;
 });
-var TreasureChest = InteractiveElement.expand(function () {
-	var self = InteractiveElement.call(this) || this;
-	var chestGraphics = self.createAsset('treasureChest', 'Treasure Chest Graphics', 0.5, 0.5);
-	self.isOpen = false;
-	self.coinReleaseRate = 3;
-	self.releaseCoins = function () {
-		if (self.isOpen) {
-			for (var i = 0; i < self.coinReleaseRate; i++) {
-				var coin = new Coin();
-				coin.x = self.x;
-				coin.y = self.y;
-				LK.stageContainer.addChild(coin);
-			}
-		}
-	};
-	self.interact = function () {
-		self.isOpen = !self.isOpen;
-		chestGraphics.texture = LK.getAsset(self.isOpen ? 'chestOpen' : 'chestClosed', 'Chest Graphics', 0.5, 0.5).texture;
-		self.releaseCoins();
-	};
-	LK.setInterval(self.performInteraction, 10000);
-	return self;
-});
 var Coin = Container.expand(function () {
 	var self = Container.call(this);
 	var coinGraphics = self.createAsset('coin', 'Coin Graphics', 0.5, 0.5);
 	self.value = 1;
@@ -1497,11 +1533,11 @@
 		}
 		fishGraphics.rotation = self.rotation;
 	};
 });
-var BubbleGenerator = Container.expand(function () {
+var BubbleGenerator = Container.expand(function (bubbleRate) {
 	var self = Container.call(this);
-	self.bubbleRate = 1000;
+	self.bubbleRate = bubbleRate || 1000;
 	self.createBubble = function () {
 		var bubble = new Bubble();
 		bubble.x = Math.random() * 2048;
 		bubble.y = 2732;