===================================================================
--- original.js
+++ change.js
@@ -10,9 +10,9 @@
 		anchorY: 0.5
 	});
 	self.speedY = 10;
 	self.flyUp = false;
-	self.move = function () {
+	self._move_migrated = function () {
 		// Bird falls down
 		self.y += self.speedY;
 		// If bird is flying up, decrease its y position
 		if (self.flyUp) {
@@ -36,9 +36,9 @@
 		anchorY: 0.5,
 		shape: 'ellipse'
 	});
 	self.speedX = -5;
-	self.move = function () {
+	self._move_migrated = function () {
 		// Obstacle moves from right to left
 		self.x += self.speedX;
 		// Rotate obstacle counterclockwise
 		self.rotation -= 0.17;
@@ -65,9 +65,9 @@
 var bird = game.addChild(new Bird());
 bird.x = 350; // Start in the middle of the screen horizontally
 bird.y = 1366; // Start in the middle of the screen vertically
 // Add touch event listener to make bird move up and down smoothly
-game.on('down', function (obj) {
+game.on('down', function (x, y, obj) {
 	bird.flyUp = true;
 	bird.rotation += Math.PI / 2; // Rotate 90 degrees
 	bird.scale.y = 0.7; // Reduce bird size vertically by 10%
 	LK.setTimeout(function () {
@@ -77,9 +77,9 @@
 var obstacles = [];
 var obstacleCreationCounter = 0;
 var score = 0; // Add a variable to track the player's score
 LK.on('tick', function () {
-	bird.move();
+	bird._move_migrated();
 	// Create a new obstacle every 42 ticks (approximately 0.7 seconds)
 	obstacleCreationCounter++;
 	if (score < 15 && obstacleCreationCounter >= 36 || score >= 15 && score < 30 && obstacleCreationCounter >= 30 || score >= 30 && score < 45 && obstacleCreationCounter >= 24 || score >= 45 && score < 60 && obstacleCreationCounter >= 24 || score >= 60 && obstacleCreationCounter >= 18) {
 		var newObstacle = game.addChild(new Obstacle());
@@ -103,9 +103,9 @@
 	}
 	// Move each obstacle and check for collisions
 	for (var i = 0; i < obstacles.length; i++) {
 		var obstacle = obstacles[i];
-		obstacle.move();
+		obstacle._move_migrated();
 		// Check if bird has collided with the obstacle
 		var dx = bird.x - obstacle.x;
 		var dy = bird.y - obstacle.y;
 		var distance = Math.sqrt(dx * dx + dy * dy);