===================================================================
--- original.js
+++ change.js
@@ -35,8 +35,23 @@
 	var petGraphics = self.attachAsset('pet', {
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
+	var tailGraphics = self.attachAsset('tail', {
+		anchorX: 0.5,
+		anchorY: 0
+	});
+	tailGraphics.x = 0;
+	tailGraphics.y = petGraphics.height / 2;
+	self.wagging = false;
+	self.wagTail = function () {
+		self.wagging = !self.wagging;
+		if (self.wagging) {
+			tailGraphics.rotation = 0.3;
+		} else {
+			tailGraphics.rotation = -0.3;
+		}
+	};
 	// Pet properties
 	self.happiness = 100; // Max happiness
 	self.health = 100; // Max health
 	// Method to feed the pet
@@ -112,8 +127,9 @@
 });
 // Update game state every tick
 LK.on('tick', function () {
 	pet.update();
+	pet.wagTail();
 	// Update the happiness bar
 	happinessBar.update(pet.happiness);
 	// Update the health bar
 	healthBar.update(pet.health);