===================================================================
--- original.js
+++ change.js
@@ -379,9 +379,9 @@
 		if (!isMiniGameMode) {
 			return;
 		}
 		// Move towards target position with smooth movement
-		self.position.x += (self.targetX - self.position.x) * 0.2;
+		self.position.x += (self.targetX - self.position.x) * 0.3;
 		self.x = self.position.x;
 		self.y = self.position.y;
 		// Animate chef slightly based on movement
 		var movementSpeed = Math.abs(self.targetX - self.position.x);
@@ -495,9 +495,11 @@
 	var cakeIndex = Math.floor(Math.random() * 10);
 	// Cake graphics
 	var cakeGraphics = self.attachAsset('cake_' + cakeIndex, {
 		anchorX: 0.5,
-		anchorY: 0.5
+		anchorY: 0.5,
+		width: 40,
+		height: 40
 	});
 	// Add rotation animation
 	var rotationDirection = Math.random() > 0.5 ? 1 : -1;
 	var rotationSpeed = (Math.random() * 0.02 + 0.01) * rotationDirection;
@@ -1094,70 +1096,79 @@
 });
 // Upgrade class
 var Upgrade = Container.expand(function () {
 	var self = Container.call(this);
-	// Upgrade properties
-	self.id = '';
-	self.name = '';
-	self.description = '';
-	self.price = 0;
-	self.cakesPerSecondIncrease = 0;
-	self.cakesPerClickIncrease = 0;
-	self.level = 0;
-	// Upgrade graphics
-	var upgradeGraphics = self.attachAsset('buttonPrice', {
+	// Create a shadow effect by adding a black tinted, semi-transparent duplicate of upgradeGraphics
+	var shadowGraphics = self.attachAsset('upgrade', {
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
-	// Upgrade icon
-	var icon = self.attachAsset('cake_0', {
+	shadowGraphics.tint = 0x000000; // Tint the shadow black
+	shadowGraphics.alpha = 0.5; // Make the shadow semi-transparent
+	shadowGraphics.y = 10; // Position the shadow slightly below the upgrade button
+	self.addChild(shadowGraphics);
+	var upgradeGraphics = self.attachAsset('upgrade', {
 		anchorX: 0.5,
-		anchorY: 0.5,
-		width: 60,
-		height: 60
+		anchorY: 0.5
 	});
-	icon.x = -120;
-	self.addChild(icon);
-	// Upgrade name text
-	var nameText = new Text2('Upgrade', {
-		size: 24,
-		fill: 0xFFFFFF,
-		fontWeight: 'bold'
+	// Attach the cake_1 image on top of the upgrade button
+	self.cakeGraphics = self.attachAsset('cake_1', {
+		anchorX: 0.5,
+		anchorY: 0.5
 	});
-	nameText.anchor.set(0.5, 0.5);
-	nameText.x = 0;
-	nameText.y = -upgradeGraphics.height / 4;
-	self.addChild(nameText);
-	// Upgrade price text
-	var upgradeText = new Text2('10', {
-		size: 24,
-		fill: 0xFFD700,
-		fontWeight: 'bold',
+	self.cakeGraphics.y = -10; // Move the cake slightly higher on the upgrade button
+	self.addChild(self.cakeGraphics);
+	var upgradesLabel = new Text2('Upgrades', {
+		size: 60,
+		fill: 0x808080,
+		// Gray color
+		fontWeight: '900'
+	});
+	upgradesLabel.anchor.set(0.5, 1); // Center the text horizontally and align it to the bottom
+	upgradesLabel.y = self.cakeGraphics.y - self.cakeGraphics.height / 2 - 160; // Move text slightly higher above the cake image
+	upgradesLabel.fill = 0x808080; // Change text color to gray
+	self.addChild(upgradesLabel);
+	var upgradeLabel = new Text2('Cake', {
+		size: 60,
+		fill: 0xFF8C00,
+		// Dark orange color
+		fontWeight: '900',
 		dropShadow: true,
 		dropShadowColor: 0x000000,
 		dropShadowBlur: 5,
 		dropShadowDistance: 5
 	});
+	upgradeLabel.anchor.set(0.5, 1); // Center the text horizontally and align it to the bottom
+	upgradeLabel.y = self.cakeGraphics.y - self.cakeGraphics.height / 2 - 50; // Position text even higher above the cake image
+	self.addChild(upgradeLabel);
+	self.cost = 10; // Initial cost of the upgrade
+	self.multiplier = 1; // Score multiplier
+	self.updateCost = function () {
+		self.cost = upgradePrices[Math.min(upgradeLevel + 1, upgradePrices.length - 1)]; // Update the cost using the upgradePrices array
+		storage.upgradeCost = self.cost; // Save the updated upgrade cost
+	};
+	self.increaseMultiplier = function () {
+		self.multiplier += 1; // Increase the multiplier by 1
+	};
+	var upgradeText = new Text2('$' + self.cost, {
+		size: 80,
+		fill: 0xFFA500,
+		// Orange color
+		fontWeight: '900',
+		dropShadow: true,
+		dropShadowColor: 0x000000,
+		dropShadowBlur: 5,
+		dropShadowDistance: 5
+	});
 	upgradeText.anchor.set(0.5, 0);
 	upgradeText.x = 0;
 	upgradeText.y = upgradeGraphics.height / 2 + 20; // Position text below the upgrade button
 	self.addChild(upgradeText);
-	// Add cake graphics
-	self.cakeGraphics = self.attachAsset('cake_0', {
-		anchorX: 0.5,
-		anchorY: 0.5,
-		width: 80,
-		height: 80
-	});
-	self.cakeGraphics.x = 120;
-	self.addChild(self.cakeGraphics);
-	// Update upgrade text
 	self.updateUpgradeText = function () {
-		upgradeText.setText(formatPrice(self.price));
+		upgradeText.setText(formatPrice(self.cost));
 	};
-	// Update cake graphics
 	self.updateCakeGraphics = function () {
-		var cakeIndex = Math.min(self.level + 1, 9);
+		var cakeIndex = Math.min(upgradeLevel + 1, 9);
 		tween(self.cakeGraphics, {
 			alpha: 0
 		}, {
 			duration: 500,
@@ -1165,13 +1176,11 @@
 			onFinish: function onFinish() {
 				self.removeChild(self.cakeGraphics);
 				self.cakeGraphics = self.attachAsset('cake_' + cakeIndex, {
 					anchorX: 0.5,
-					anchorY: 0.5,
-					width: 80,
-					height: 80
+					anchorY: 0.5
 				});
-				self.cakeGraphics.x = 120;
+				self.cakeGraphics.y = -10;
 				self.cakeGraphics.alpha = 0;
 				self.addChild(self.cakeGraphics);
 				tween(self.cakeGraphics, {
 					alpha: 1
@@ -1181,68 +1190,64 @@
 				});
 			}
 		});
 	};
-	// Initialize upgrade
-	self.initialize = function (id, name, description, basePrice, cakesPerSecondIncrease, cakesPerClickIncrease, iconAsset) {
-		self.id = id;
-		self.name = name;
-		self.description = description;
-		self.basePrice = basePrice;
-		self.price = basePrice;
-		self.cakesPerSecondIncrease = cakesPerSecondIncrease;
-		self.cakesPerClickIncrease = cakesPerClickIncrease;
-		self.level = 0;
-		// Update texts
-		nameText.text = name;
-		upgradeText.text = basePrice;
-		upgradeText.setText(formatPrice(self.price));
-		// Update icon
-		if (iconAsset) {
-			self.removeChild(icon);
-			icon = self.attachAsset(iconAsset, {
-				anchorX: 0.5,
-				anchorY: 0.5,
-				width: 60,
-				height: 60
+	self.onClick = function () {
+		if (currentScore >= self.cost) {
+			currentScore -= self.cost; // Deduct the cost from the current score
+			score.updateScore(currentScore); // Update the score display
+			self.updateCost(); // Update the cost for the next upgrade
+			storage.upgradeMultiplier = self.multiplier; // Save the updated multiplier
+			self.increaseMultiplier(); // Increase the score multiplier
+			self.updateUpgradeText(); // Update the upgrade text
+			upgradeLevel = Math.min(upgradeLevel + 1, 9); // Increment upgrade level, max 9
+			storage.upgradeLevel = upgradeLevel; // Save the updated upgrade level
+			self.updateCakeGraphics(); // Update cake graphics based on new upgrade level
+			confettiManager.popCakes(bigCake.x, bigCake.y, 5); // Call popCakes using bigCake's coordinates
+			LK.getSound('buySound').play(); // Play buy sound when upgrade is purchased
+			// Animate the upgrade button
+			tween(upgradeGraphics, {
+				scaleX: 1.2,
+				scaleY: 1.2
+			}, {
+				duration: 200,
+				easing: tween.easeOut,
+				onFinish: function onFinish() {
+					tween(upgradeGraphics, {
+						scaleX: 1,
+						scaleY: 1
+					}, {
+						duration: 200,
+						easing: tween.easeIn
+					});
+				}
 			});
-			icon.x = -120;
-			self.addChild(icon);
-		}
-		return self;
-	};
-	// Update upgrade price based on level
-	self.updatePrice = function () {
-		self.price = Math.floor(self.basePrice * Math.pow(1.15, self.level));
-		upgradeText.setText(formatPrice(self.price));
-	};
-	// Buy upgrade
-	self.buy = function () {
-		// Check if player has enough cakes
-		if (cakes >= self.price) {
-			// Subtract price from cakes
-			cakes -= self.price;
-			updateCakeCounter();
-			// Increase level
-			self.level++;
-			upgradeText.setText('Lv. ' + self.level);
-			// Update price
-			self.updatePrice();
-			// Increase cakes per second
-			cakesPerSecond += self.cakesPerSecondIncrease;
-			updateCakesPerSecondCounter();
-			// Increase cakes per click
-			cakesPerClick += self.cakesPerClickIncrease;
-			// Play purchase sound
-			LK.getSound('achat').play();
-			// Create animation
-			var animation = new CakeAnimation();
-			animation.x = self.x;
-			animation.y = self.y;
-			foregroundContainer.addChild(animation);
 		} else {
-			// Not enough cakes
-			LK.getSound('errorsond').play(); // Play error sound
+			// Play error sound if not enough cakes
+			LK.getSound('errorsond').play();
+			// Shake the upgrade button to indicate error
+			tween(upgradeGraphics, {
+				x: 10
+			}, {
+				duration: 50,
+				easing: tween.easeInOut,
+				onFinish: function onFinish() {
+					tween(upgradeGraphics, {
+						x: -10
+					}, {
+						duration: 100,
+						easing: tween.easeInOut,
+						onFinish: function onFinish() {
+							tween(upgradeGraphics, {
+								x: 0
+							}, {
+								duration: 50,
+								easing: tween.easeInOut
+							});
+						}
+					});
+				}
+			});
 		}
 	};
 	return self;
 });
@@ -1355,9 +1360,8 @@
 * Assets
 * Initialize all game assets including images, sounds, and music
 ****/ 
 // Declare game variables
-var cakes = 0; // Initialize cakes variable to track the number of cakes
 var bonusCakeManager; // Declare bonusCakeManager globally
 var cakeList = ['cake_0', 'cake_1', 'cake_2', 'cake_3', 'cake_4', 'cake_5', 'cake_6', 'cake_8', 'cake_9'];
 var isResetConfirmationDisplayed = false; // Track if reset confirmation is displayed
 var upgradeLevel = storage.upgradeLevel || 0; // Load saved upgrade level or default to 0
@@ -1448,29 +1452,28 @@
 			endMiniGame();
 		}
 	}, 1000);
 	// Set up input handling for mini-game
-	LK.stage.on('mousemove', handleMiniGamePointerMove);
-	LK.stage.on('mousedown', handleMiniGamePointerMove);
+	LK.stage.on('move', handleMiniGamePointerMove);
+	LK.stage.on('down', handleMiniGamePointerMove);
 }
 // Handle mini-game pointer movement
 function handleMiniGamePointerMove(event) {
 	if (!isMiniGameMode) {
 		return;
 	}
 	// Get mouse position
-	var mouseX = event.clientX || event.pageX;
-	miniGameChef.setTargetPosition(mouseX);
+	miniGameChef.setTargetPosition(event.x);
 }
 // End mini-game
 function endMiniGame() {
 	// Stop timer
 	LK.clearInterval(miniGameTimer);
 	// Stop cake manager
 	miniGameCakeManager.stop();
 	// Remove input handlers
-	LK.stage.off('mousemove', handleMiniGamePointerMove);
-	LK.stage.off('mousedown', handleMiniGamePointerMove);
+	LK.stage.off('move', handleMiniGamePointerMove);
+	LK.stage.off('down', handleMiniGamePointerMove);
 	// Calculate reward based on score
 	miniGameReward = Math.floor(miniGameCakeManager.gameScore / 10);
 	// Add reward to player's cakes
 	cakes += miniGameReward;
@@ -1605,9 +1608,9 @@
 	miniGameButton.x = 2048 / 2;
 	miniGameButton.y = 2732 / 2 + 400;
 	foregroundContainer.addChild(miniGameButton);
 	// Set up game loop
-	LK.setInterval(gameLoop, 16); // ~60fps
+	LK.onUpdate(gameLoop);
 }
 // Call the function to initialize game variables
 initializeGameVariables();
 // Game loop
@@ -1631,5 +1634,6 @@
 		miniGameCakeManager.update(miniGameChef);
 	}
 }
 // Initialize cakesPerSecondCounter
-var cakesPerSecondCounter = 0;
\ No newline at end of file
+var cakesPerSecondCounter = 0;
+LK.onUpdate(gameLoop);
\ No newline at end of file