===================================================================
--- original.js
+++ change.js
@@ -1,8 +1,155 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var Card = Container.expand(function (isWinning) {
+	var self = Container.call(this);
+	self.isWinning = isWinning || false;
+	self.isFlipped = false;
+	self.isClickable = true;
+	// Create card back (visible initially)
+	var cardBack = self.attachAsset('cardBack', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	// Create card front (hidden initially)
+	var cardFront = self.attachAsset(self.isWinning ? 'cardFront' : 'wrongCard', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		alpha: 0
+	});
+	self.flip = function () {
+		if (!self.isClickable || self.isFlipped) return;
+		self.isFlipped = true;
+		self.isClickable = false;
+		LK.getSound('cardFlip').play();
+		// Flip animation
+		tween.to(cardBack, {
+			scaleX: 0
+		}, 150, function () {
+			cardBack.alpha = 0;
+			cardFront.alpha = 1;
+			cardFront.scaleX = 0;
+			tween.to(cardFront, {
+				scaleX: 1
+			}, 150);
+		});
+		// Trigger game logic
+		if (self.isWinning) {
+			LK.getSound('correct').play();
+			game.onCorrectCard();
+		} else {
+			LK.getSound('wrong').play();
+			game.onWrongCard();
+		}
+	};
+	self.down = function (x, y, obj) {
+		self.flip();
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 // Assets will be initialized automatically when needed
 // Classes will be defined here
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x2c3e50
+});
+
+/**** 
+* Game Code
+****/ 
+// Game variables
+var currentLevel = 1;
+var maxLevel = 9;
+var cards = [];
+var gameState = 'playing'; // 'playing', 'won', 'lost'
+// UI elements
+var levelText = new Text2('Level: 1', {
+	size: 80,
+	fill: 0xFFFFFF
+});
+levelText.anchor.set(0.5, 0);
+LK.gui.top.addChild(levelText);
+var instructionText = new Text2('Find the green card!', {
+	size: 60,
+	fill: 0xFFFFFF
+});
+instructionText.anchor.set(0.5, 0);
+instructionText.y = 100;
+LK.gui.top.addChild(instructionText);
+function getCardsForLevel(level) {
+	if (level <= 3) return 3;
+	if (level <= 6) return 6;
+	return 9;
+}
+function createLevel() {
+	// Clear existing cards
+	for (var i = 0; i < cards.length; i++) {
+		cards[i].destroy();
+	}
+	cards = [];
+	var numCards = getCardsForLevel(currentLevel);
+	var winningIndex = Math.floor(Math.random() * numCards);
+	// Calculate card positions
+	var cardSpacing = 250;
+	var cardsPerRow = numCards <= 3 ? 3 : 3;
+	var rows = Math.ceil(numCards / cardsPerRow);
+	var startX = 1024 - (cardsPerRow - 1) * cardSpacing / 2;
+	var startY = 1366 - (rows - 1) * 350 / 2;
+	// Create cards
+	for (var i = 0; i < numCards; i++) {
+		var isWinning = i === winningIndex;
+		var card = new Card(isWinning);
+		var row = Math.floor(i / cardsPerRow);
+		var col = i % cardsPerRow;
+		card.x = startX + col * cardSpacing;
+		card.y = startY + row * 350;
+		cards.push(card);
+		game.addChild(card);
+	}
+	// Update UI
+	levelText.setText('Level: ' + currentLevel);
+	gameState = 'playing';
+}
+game.onCorrectCard = function () {
+	gameState = 'won';
+	// Disable all cards
+	for (var i = 0; i < cards.length; i++) {
+		cards[i].isClickable = false;
+	}
+	if (currentLevel >= maxLevel) {
+		// Game complete
+		instructionText.setText('Congratulations! You won!');
+		LK.setTimeout(function () {
+			LK.showYouWin();
+		}, 1500);
+	} else {
+		// Next level
+		instructionText.setText('Correct! Next level...');
+		LK.setTimeout(function () {
+			currentLevel++;
+			createLevel();
+			instructionText.setText('Find the green card!');
+		}, 1500);
+	}
+};
+game.onWrongCard = function () {
+	gameState = 'lost';
+	// Disable all cards
+	for (var i = 0; i < cards.length; i++) {
+		cards[i].isClickable = false;
+	}
+	instructionText.setText('Wrong choice! Game Over');
+	LK.setTimeout(function () {
+		LK.showGameOver();
+	}, 1500);
+};
+// Initialize first level
+createLevel();
\ No newline at end of file