===================================================================
--- original.js
+++ change.js
@@ -175,8 +175,64 @@
 			self.direction = angle + Math.PI;
 		}
 	};
 });
+var Skater2 = Container.expand(function () {
+	var self = Container.call(this);
+	var skaterGraphics = self.attachAsset('Skater_2', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.direction = Math.random() * 2 * Math.PI;
+	self.speed = 5;
+	self.rotationSpeed = 0.1;
+	self.isRotating = false;
+	self.rotateTimer = 0;
+	self.rotateDuration = 30;
+	self._move_migrated = function () {
+		var newX = self.x + Math.cos(self.direction) * self.speed;
+		var newY = self.y + Math.sin(self.direction) * self.speed;
+		if (newX > 1798 || newX < 300) {
+			self.direction = Math.PI - self.direction;
+		}
+		if (newY > 2482 || newY < 250) {
+			self.direction = -self.direction;
+		}
+		self.x = newX;
+		self.y = newY;
+	};
+	self._update_migrated = function () {
+		if (self.isRotating) {
+			self.rotation += self.rotationSpeed;
+			self.rotateTimer++;
+			if (self.rotateTimer >= self.rotateDuration) {
+				self.isRotating = false;
+				self.rotateTimer = 0;
+				self.direction = Math.random() * 2 * Math.PI;
+			}
+		} else if (Math.random() < 0.05) {
+			self.isRotating = true;
+		}
+		self._move_migrated();
+		for (var i = 0; i < skaters.length; i++) {
+			if (self !== skaters[i] && self.intersects(skaters[i])) {
+				var angle = Math.atan2(skaters[i].y - self.y, skaters[i].x - self.x);
+				self.direction = angle + Math.PI;
+				skaters[i].direction = angle;
+				LK.getSound('Bounce').play();
+			}
+		}
+		var circleCenter = {
+			x: 2048 / 2,
+			y: 2732 / 2
+		};
+		var distanceToCenter = Math.sqrt(Math.pow(self.x - circleCenter.x, 2) + Math.pow(self.y - circleCenter.y, 2));
+		if (distanceToCenter < 400) {
+			var angle = Math.atan2(circleCenter.y - self.y, circleCenter.x - self.x);
+			self.direction = angle + Math.PI;
+		}
+	};
+});
 var Snowboarder = Container.expand(function () {
 	var self = Container.call(this);
 	var snowboarderGraphics = self.attachAsset('snowboarder', {
 		anchorX: 0.5,
@@ -406,12 +462,9 @@
 	}
 };
 game.spawnSkaters = function (level) {
 	for (var i = 0; i < (level === 4 ? level + 3 : level + 2); i++) {
-		var skater = level === 4 ? game.addChild(LK.getAsset('Skater_2', {
-			anchorX: 0.5,
-			anchorY: 0.5
-		})) : game.addChild(new Skater());
+		var skater = level === 4 ? game.addChild(new Skater2()) : game.addChild(new Skater());
 		if (level === 4) {
 			skater.width = 250;
 			skater.height = 282.08;
 		}