/**** 
* Plugins
****/ 
var facekit = LK.import("@upit/facekit.v1");
var tween = LK.import("@upit/tween.v1");

/**** 
* Classes
****/ 
// Duck class representing the player's duck
var Duck = Container.expand(function () {
	var self = Container.call(this);
	var duckGraphics = self.attachAsset('duck', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 5; // Initial speed of the duck
	self.speedVariation = 0; // Variable to keep track of the speed variation
	self.update = function () {
		if (countdown == 0) {
			// Update the duck's speed using the tween plugin
			tween(self, {
				speedVariation: Math.random() * 2 - 1
			}, {
				duration: 1000,
				easing: tween.easeInOut
			});
			self.x += self.speed + self.speedVariation;
		}
	};
});
// PlayerDuck class representing the player's duck
var PlayerDuck = Duck.expand(function () {
	var self = Duck.call(this);
	// Create a playerDuck graphic and assign it to the playerDuck instance
	var playerDuckGraphics = self.attachAsset('playerDuck', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		if (countdown == 0) {
			self.x += facekit.volume * self.speed;
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87CEEB // Light blue background to simulate sky
});

/**** 
* Game Code
****/ 
// Initialize game elements
//<Assets used in the game will automatically appear here>
var ducks = [];
var countdown = 3;
var countdownText = new Text2(countdown.toString(), {
	size: 150,
	fill: 0xFFFFFF
});
countdownText.anchor.set(0.5, 0);
LK.gui.center.addChild(countdownText);
for (var i = 0; i < 5; i++) {
	var duck = game.addChild(new Duck());
	duck.x = 100; // Starting position of the duck
	duck.y = 600 + i * 200; // Aligned vertically
	ducks.push(duck);
}
var playerDuck = new PlayerDuck();
var score = 0;
// Update function called every frame
game.update = function () {
	if (countdown > 0 && LK.ticks % 60 == 0) {
		countdown--;
		countdownText.setText(countdown.toString());
		if (countdown == 0) {
			LK.gui.center.removeChild(countdownText);
			// Reset the duck's speed variation
			for (var j = 0; j < ducks.length; j++) {
				var duck = ducks[j];
				duck.speedVariation = 0;
			}
		}
	}
	for (var j = 0; j < ducks.length; j++) {
		var duck = ducks[j];
		duck.update();
		// Check if duck has reached the end of the track
		if (duck.x > 2048) {
			// Duck wins the race
			if (duck === playerDuck) {
				LK.showYouWin();
			} else {
				LK.showGameOver();
			}
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -41,8 +41,9 @@
 		if (countdown == 0) {
 			self.x += facekit.volume * self.speed;
 		}
 	};
+	return self;
 });
 
 /**** 
 * Initialize Game