===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,241 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var AnswerButton = Container.expand(function (answer, isCorrect) {
+	var self = Container.call(this);
+	var buttonGraphics = self.attachAsset('answerButton', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	var answerText = new Text2(answer.toString(), {
+		size: 60,
+		fill: 0xFFFFFF
+	});
+	answerText.anchor.set(0.5, 0.5);
+	self.addChild(answerText);
+	self.answer = answer;
+	self.isCorrect = isCorrect;
+	self.isClicked = false;
+	self.down = function (x, y, obj) {
+		if (self.isClicked) return;
+		self.isClicked = true;
+		if (self.isCorrect) {
+			self.removeChild(buttonGraphics);
+			var correctGraphics = self.attachAsset('correctButton', {
+				anchorX: 0.5,
+				anchorY: 0.5
+			});
+			LK.getSound('correct').play();
+			LK.setScore(LK.getScore() + 1);
+			scoreTxt.setText(LK.getScore());
+			LK.setTimeout(function () {
+				nextQuestion();
+			}, 1000);
+		} else {
+			self.removeChild(buttonGraphics);
+			var wrongGraphics = self.attachAsset('wrongButton', {
+				anchorX: 0.5,
+				anchorY: 0.5
+			});
+			LK.getSound('wrong').play();
+			LK.setTimeout(function () {
+				showGameOver();
+			}, 1000);
+		}
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x34495e
+});
+
+/**** 
+* Game Code
+****/ 
+var currentLevel = 1;
+var questionsAnswered = 0;
+var maxQuestions = 10;
+var timeLeft = 60;
+var gameTimer = null;
+var currentQuestion = null;
+var answerButtons = [];
+// UI Elements
+var questionBox = game.addChild(LK.getAsset('questionBox', {
+	anchorX: 0.5,
+	anchorY: 0.5,
+	x: 1024,
+	y: 800
+}));
+var questionText = new Text2('', {
+	size: 80,
+	fill: 0xFFFFFF
+});
+questionText.anchor.set(0.5, 0.5);
+questionText.x = 1024;
+questionText.y = 800;
+game.addChild(questionText);
+var scoreTxt = new Text2('Score: 0', {
+	size: 60,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0, 0);
+scoreTxt.x = 100;
+scoreTxt.y = 150;
+game.addChild(scoreTxt);
+var timerTxt = new Text2('Time: 60', {
+	size: 60,
+	fill: 0xFFFFFF
+});
+timerTxt.anchor.set(1, 0);
+timerTxt.x = 1948;
+timerTxt.y = 150;
+game.addChild(timerTxt);
+var levelTxt = new Text2('Level: 1', {
+	size: 50,
+	fill: 0xFFFFFF
+});
+levelTxt.anchor.set(0.5, 0);
+levelTxt.x = 1024;
+levelTxt.y = 150;
+game.addChild(levelTxt);
+function generateQuestion() {
+	var num1, num2, operator, correctAnswer;
+	var operations = ['+', '-', '*', '/'];
+	if (currentLevel <= 2) {
+		// Easy: single digit addition/subtraction
+		num1 = Math.floor(Math.random() * 9) + 1;
+		num2 = Math.floor(Math.random() * 9) + 1;
+		operator = Math.random() < 0.5 ? '+' : '-';
+		if (operator === '-' && num2 > num1) {
+			var temp = num1;
+			num1 = num2;
+			num2 = temp;
+		}
+	} else if (currentLevel <= 4) {
+		// Medium: two digit numbers, all operations
+		num1 = Math.floor(Math.random() * 20) + 1;
+		num2 = Math.floor(Math.random() * 10) + 1;
+		operator = operations[Math.floor(Math.random() * 4)];
+		if (operator === '-' && num2 > num1) {
+			var temp = num1;
+			num1 = num2;
+			num2 = temp;
+		}
+		if (operator === '/' && num1 % num2 !== 0) {
+			num1 = num2 * Math.floor(Math.random() * 5 + 1);
+		}
+	} else {
+		// Hard: larger numbers
+		num1 = Math.floor(Math.random() * 50) + 10;
+		num2 = Math.floor(Math.random() * 20) + 1;
+		operator = operations[Math.floor(Math.random() * 4)];
+		if (operator === '-' && num2 > num1) {
+			var temp = num1;
+			num1 = num2;
+			num2 = temp;
+		}
+		if (operator === '/' && num1 % num2 !== 0) {
+			num1 = num2 * Math.floor(Math.random() * 8 + 1);
+		}
+	}
+	switch (operator) {
+		case '+':
+			correctAnswer = num1 + num2;
+			break;
+		case '-':
+			correctAnswer = num1 - num2;
+			break;
+		case '*':
+			correctAnswer = num1 * num2;
+			break;
+		case '/':
+			correctAnswer = num1 / num2;
+			break;
+	}
+	return {
+		text: num1 + ' ' + operator + ' ' + num2 + ' = ?',
+		answer: correctAnswer
+	};
+}
+function generateWrongAnswers(correctAnswer) {
+	var wrongAnswers = [];
+	var range = Math.max(5, Math.floor(correctAnswer * 0.3));
+	while (wrongAnswers.length < 3) {
+		var wrong = correctAnswer + Math.floor(Math.random() * range * 2) - range;
+		if (wrong !== correctAnswer && wrongAnswers.indexOf(wrong) === -1 && wrong >= 0) {
+			wrongAnswers.push(wrong);
+		}
+	}
+	return wrongAnswers;
+}
+function clearAnswerButtons() {
+	for (var i = 0; i < answerButtons.length; i++) {
+		answerButtons[i].destroy();
+	}
+	answerButtons = [];
+}
+function showQuestion() {
+	clearAnswerButtons();
+	currentQuestion = generateQuestion();
+	questionText.setText(currentQuestion.text);
+	var answers = [currentQuestion.answer];
+	var wrongAnswers = generateWrongAnswers(currentQuestion.answer);
+	answers = answers.concat(wrongAnswers);
+	// Shuffle answers
+	for (var i = answers.length - 1; i > 0; i--) {
+		var j = Math.floor(Math.random() * (i + 1));
+		var temp = answers[i];
+		answers[i] = answers[j];
+		answers[j] = temp;
+	}
+	// Create answer buttons
+	var buttonStartX = 1024 - (4 * 350 + 3 * 50) / 2 + 175;
+	var buttonY = 1200;
+	for (var i = 0; i < 4; i++) {
+		var button = new AnswerButton(answers[i], answers[i] === currentQuestion.answer);
+		button.x = buttonStartX + i * 400;
+		button.y = buttonY;
+		answerButtons.push(button);
+		game.addChild(button);
+	}
+}
+function nextQuestion() {
+	questionsAnswered++;
+	if (questionsAnswered >= maxQuestions) {
+		LK.showYouWin();
+		return;
+	}
+	if (questionsAnswered % 3 === 0) {
+		currentLevel++;
+		levelTxt.setText('Level: ' + currentLevel);
+		LK.effects.flashScreen(0x27ae60, 500);
+	}
+	showQuestion();
+}
+function showGameOver() {
+	LK.clearInterval(gameTimer);
+	LK.showGameOver();
+}
+function startGame() {
+	// Start timer
+	gameTimer = LK.setInterval(function () {
+		timeLeft--;
+		timerTxt.setText('Time: ' + timeLeft);
+		if (timeLeft <= 0) {
+			showGameOver();
+		}
+	}, 1000);
+	// Show first question
+	showQuestion();
+}
+// Start the game
+startGame();
\ No newline at end of file