===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,404 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+var storage = LK.import("@upit/storage.v1");
+
+/**** 
+* Classes
+****/ 
+var AnswerButton = Container.expand(function (optionText, index) {
+	var self = Container.call(this);
+	var buttonGraphics = self.attachAsset('button', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	var optionLetter = ['A', 'B', 'C', 'D'][index];
+	var buttonText = new Text2(optionLetter + ': ' + optionText, {
+		size: 60,
+		fill: 0xFFFFFF
+	});
+	buttonText.anchor.set(0.5, 0.5);
+	self.addChild(buttonText);
+	self.isCorrect = false;
+	self.optionText = optionText;
+	self.setCorrect = function (correct) {
+		self.isCorrect = correct;
+	};
+	self.showResult = function (isSelected) {
+		if (isSelected) {
+			if (self.isCorrect) {
+				tween(buttonGraphics, {
+					tint: 0x42f56f
+				}, {
+					duration: 300
+				});
+				LK.getSound('correct').play();
+			} else {
+				tween(buttonGraphics, {
+					tint: 0xf54242
+				}, {
+					duration: 300
+				});
+				LK.getSound('wrong').play();
+			}
+		} else if (self.isCorrect) {
+			tween(buttonGraphics, {
+				tint: 0x42f56f
+			}, {
+				duration: 300
+			});
+		}
+	};
+	self.reset = function () {
+		tween(buttonGraphics, {
+			tint: 0x4287f5
+		}, {
+			duration: 300
+		});
+	};
+	self.down = function (x, y, obj) {
+		tween(buttonGraphics, {
+			scaleX: 0.95,
+			scaleY: 0.95
+		}, {
+			duration: 100
+		});
+	};
+	self.up = function (x, y, obj) {
+		tween(buttonGraphics, {
+			scaleX: 1,
+			scaleY: 1
+		}, {
+			duration: 100
+		});
+		// Handle selection in the game class
+		if (typeof game.onOptionSelected === 'function') {
+			game.onOptionSelected(self);
+		}
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
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+	backgroundColor: 0xf0f0f0
+});
+
+/**** 
+* Game Code
+****/ 
+// Game configuration
+var currentQuestion = 0;
+var totalQuestions = 20;
+var questions = [];
+var answerButtons = [];
+var questionText = null;
+var difficultyText = null;
+var progressText = null;
+var canAnswer = true;
+var difficultyLevels = ["Easy", "Medium", "Difficult", "Extreme"];
+var currentDifficulty = 0;
+// Generate questions of increasing difficulty
+function generateQuestions() {
+	questions = [];
+	// Easy questions (1-5)
+	for (var i = 0; i < 5; i++) {
+		var num1 = Math.floor(Math.random() * 10) + 1;
+		var num2 = Math.floor(Math.random() * 10) + 1;
+		var operation = ['+', '-', '*'][Math.floor(Math.random() * 3)];
+		var correctAnswer = calculateAnswer(num1, num2, operation);
+		questions.push({
+			question: "".concat(num1, " ").concat(operation, " ").concat(num2, " = ?"),
+			options: generateOptions(correctAnswer, 20),
+			correctAnswer: correctAnswer,
+			difficulty: 0
+		});
+	}
+	// Medium questions (6-10)
+	for (var i = 0; i < 5; i++) {
+		var num1 = Math.floor(Math.random() * 20) + 10;
+		var num2 = Math.floor(Math.random() * 20) + 10;
+		var operation = ['+', '-', '*', '/'][Math.floor(Math.random() * 4)];
+		if (operation === '/' && num1 % num2 !== 0) {
+			// Make sure division results in an integer
+			num1 = num2 * (Math.floor(Math.random() * 10) + 1);
+		}
+		var correctAnswer = calculateAnswer(num1, num2, operation);
+		questions.push({
+			question: "".concat(num1, " ").concat(operation, " ").concat(num2, " = ?"),
+			options: generateOptions(correctAnswer, 50),
+			correctAnswer: correctAnswer,
+			difficulty: 1
+		});
+	}
+	// Difficult questions (11-15)
+	for (var i = 0; i < 5; i++) {
+		var num1 = Math.floor(Math.random() * 50) + 20;
+		var num2 = Math.floor(Math.random() * 30) + 10;
+		var num3 = Math.floor(Math.random() * 10) + 1;
+		var operations = ['+', '-', '*'];
+		var op1 = operations[Math.floor(Math.random() * 3)];
+		var op2 = operations[Math.floor(Math.random() * 3)];
+		var question = "".concat(num1, " ").concat(op1, " ").concat(num2, " ").concat(op2, " ").concat(num3, " = ?");
+		var correctAnswer = calculateComplexAnswer(num1, num2, num3, op1, op2);
+		questions.push({
+			question: question,
+			options: generateOptions(correctAnswer, 100),
+			correctAnswer: correctAnswer,
+			difficulty: 2
+		});
+	}
+	// Extreme questions (16-20)
+	for (var i = 0; i < 5; i++) {
+		var question = "";
+		var correctAnswer = 0;
+		// Choose a random type of extreme question
+		var questionType = Math.floor(Math.random() * 4);
+		switch (questionType) {
+			case 0:
+				// Powers and roots
+				var base = Math.floor(Math.random() * 10) + 2;
+				var exponent = Math.floor(Math.random() * 3) + 2;
+				question = "".concat(base, "^").concat(exponent, " = ?");
+				correctAnswer = Math.pow(base, exponent);
+				break;
+			case 1:
+				// Percentage problems
+				var whole = Math.floor(Math.random() * 100) + 50;
+				var percentage = Math.floor(Math.random() * 90) + 10;
+				question = "".concat(percentage, "% of ").concat(whole, " = ?");
+				correctAnswer = percentage / 100 * whole;
+				break;
+			case 2:
+				// Complex equation
+				var a = Math.floor(Math.random() * 10) + 1;
+				var b = Math.floor(Math.random() * 20) + 10;
+				var c = Math.floor(Math.random() * 5) + 1;
+				var d = Math.floor(Math.random() * 10) + 5;
+				question = "(".concat(a, " \xD7 ").concat(b, ") \xF7 (").concat(c, " + ").concat(d, ") = ?");
+				correctAnswer = a * b / (c + d);
+				correctAnswer = Math.round(correctAnswer * 100) / 100; // Round to 2 decimal places
+				break;
+			case 3:
+				// Sequence problems
+				var start = Math.floor(Math.random() * 5) + 1;
+				var diff = Math.floor(Math.random() * 5) + 2;
+				var sequence = [];
+				for (var j = 0; j < 5; j++) {
+					sequence.push(start + j * diff);
+				}
+				question = "What comes next: ".concat(sequence.join(", "), ", ?");
+				correctAnswer = start + 5 * diff;
+				break;
+		}
+		questions.push({
+			question: question,
+			options: generateOptions(correctAnswer, 200),
+			correctAnswer: correctAnswer,
+			difficulty: 3
+		});
+	}
+}
+function calculateAnswer(num1, num2, operation) {
+	switch (operation) {
+		case '+':
+			return num1 + num2;
+		case '-':
+			return num1 - num2;
+		case '*':
+			return num1 * num2;
+		case '/':
+			return num1 / num2;
+		default:
+			return 0;
+	}
+}
+function calculateComplexAnswer(num1, num2, num3, op1, op2) {
+	// Follow order of operations (BODMAS)
+	if ((op1 === '*' || op1 === '/') && (op2 === '+' || op2 === '-')) {
+		// First operation takes precedence
+		var intermediateResult = calculateAnswer(num1, num2, op1);
+		return calculateAnswer(intermediateResult, num3, op2);
+	} else {
+		// Second operation takes precedence
+		var intermediateResult = calculateAnswer(num2, num3, op2);
+		return calculateAnswer(num1, intermediateResult, op1);
+	}
+}
+function generateOptions(correctAnswer, range) {
+	var options = [correctAnswer];
+	// Generate 3 wrong answers
+	while (options.length < 4) {
+		var offset = Math.floor(Math.random() * range) - range / 2;
+		var wrongAnswer = correctAnswer + offset;
+		// Make sure the wrong answer is not the same as any existing options
+		// and is not negative
+		if (offset !== 0 && !options.includes(wrongAnswer) && wrongAnswer >= 0) {
+			options.push(wrongAnswer);
+		}
+	}
+	// Shuffle options
+	for (var i = options.length - 1; i > 0; i--) {
+		var j = Math.floor(Math.random() * (i + 1));
+		var temp = options[i];
+		options[i] = options[j];
+		options[j] = temp;
+	}
+	// Round decimal answers for better display
+	for (var i = 0; i < options.length; i++) {
+		if (options[i] % 1 !== 0) {
+			options[i] = Math.round(options[i] * 100) / 100;
+		}
+	}
+	return options;
+}
+function initializeGame() {
+	// Clear any existing elements
+	while (game.children.length > 0) {
+		game.removeChild(game.children[0]);
+	}
+	// Reset variables
+	currentQuestion = 0;
+	currentDifficulty = 0;
+	answerButtons = [];
+	canAnswer = true;
+	// Generate new questions
+	generateQuestions();
+	// Create title
+	var titleText = new Text2("Math Challenge Quiz", {
+		size: 100,
+		fill: 0x1A1A1A
+	});
+	titleText.anchor.set(0.5, 0);
+	titleText.x = 2048 / 2;
+	titleText.y = 100;
+	game.addChild(titleText);
+	// Create difficulty indicator
+	difficultyText = new Text2("Difficulty: ".concat(difficultyLevels[currentDifficulty]), {
+		size: 60,
+		fill: 0x1A1A1A
+	});
+	difficultyText.anchor.set(0.5, 0);
+	difficultyText.x = 2048 / 2;
+	difficultyText.y = 220;
+	game.addChild(difficultyText);
+	// Create progress indicator
+	progressText = new Text2("Question: ".concat(currentQuestion + 1, "/").concat(totalQuestions), {
+		size: 60,
+		fill: 0x1A1A1A
+	});
+	progressText.anchor.set(0.5, 0);
+	progressText.x = 2048 / 2;
+	progressText.y = 300;
+	game.addChild(progressText);
+	// Create question text
+	questionText = new Text2("", {
+		size: 80,
+		fill: 0x1A1A1A
+	});
+	questionText.anchor.set(0.5, 0);
+	questionText.x = 2048 / 2;
+	questionText.y = 450;
+	game.addChild(questionText);
+	// Create answer buttons
+	for (var i = 0; i < 4; i++) {
+		var button = new AnswerButton("", i);
+		// Calculate position
+		var buttonWidth = 600;
+		var buttonHeight = 250;
+		var padding = 100;
+		if (i < 2) {
+			button.x = 2048 / 2 - buttonWidth / 2 - padding / 2 + i * (buttonWidth + padding);
+			button.y = 800;
+		} else {
+			button.x = 2048 / 2 - buttonWidth / 2 - padding / 2 + (i - 2) * (buttonWidth + padding);
+			button.y = 1100;
+		}
+		game.addChild(button);
+		answerButtons.push(button);
+	}
+	// Create score display
+	var scoreText = new Text2("Score: 0", {
+		size: 60,
+		fill: 0x1A1A1A
+	});
+	scoreText.anchor.set(1, 0);
+	scoreText.x = 2048 - 50;
+	scoreText.y = 50;
+	game.addChild(scoreText);
+	// Display first question
+	displayQuestion(currentQuestion);
+	// Play background music
+	LK.playMusic('bgMusic');
+}
+function displayQuestion(questionIndex) {
+	if (questionIndex >= questions.length) {
+		return;
+	}
+	var question = questions[questionIndex];
+	// Update difficulty if needed
+	var newDifficulty = question.difficulty;
+	if (newDifficulty !== currentDifficulty) {
+		currentDifficulty = newDifficulty;
+		difficultyText.setText("Difficulty: ".concat(difficultyLevels[currentDifficulty]));
+		LK.getSound('levelUp').play();
+	}
+	// Update progress
+	progressText.setText("Question: ".concat(questionIndex + 1, "/").concat(totalQuestions));
+	// Update question text
+	questionText.setText(question.question);
+	// Reset and update all buttons
+	for (var i = 0; i < 4; i++) {
+		answerButtons[i].reset();
+		answerButtons[i].setCorrect(question.options[i] === question.correctAnswer);
+		var buttonText = new Text2(['A', 'B', 'C', 'D'][i] + ': ' + question.options[i], {
+			size: 60,
+			fill: 0xFFFFFF
+		});
+		buttonText.anchor.set(0.5, 0.5);
+		// Remove any existing text
+		while (answerButtons[i].children.length > 1) {
+			answerButtons[i].removeChild(answerButtons[i].children[1]);
+		}
+		answerButtons[i].addChild(buttonText);
+		answerButtons[i].optionText = question.options[i];
+	}
+	canAnswer = true;
+}
+game.onOptionSelected = function (selectedButton) {
+	if (!canAnswer) return;
+	canAnswer = false;
+	// Show results for all buttons
+	for (var i = 0; i < answerButtons.length; i++) {
+		answerButtons[i].showResult(answerButtons[i] === selectedButton);
+	}
+	// Check if the selected answer is correct
+	if (selectedButton.isCorrect) {
+		// Increase score
+		LK.setScore(LK.getScore() + 1);
+		// Move to next question after a delay
+		LK.setTimeout(function () {
+			currentQuestion++;
+			if (currentQuestion >= totalQuestions) {
+				// Game completed
+				LK.showYouWin();
+			} else {
+				displayQuestion(currentQuestion);
+			}
+		}, 1000);
+	} else {
+		// If wrong answer, show game over after a delay
+		LK.setTimeout(function () {
+			LK.showGameOver();
+		}, 1500);
+	}
+};
+// On window resize, make sure everything is positioned correctly
+LK.on('resize', function () {
+	// The engine handles scaling automatically
+});
+// Initialize the game
+initializeGame();
\ No newline at end of file