===================================================================
--- original.js
+++ change.js
@@ -143,8 +143,36 @@
 	self.toggle = function () {
 		self.visible = !self.visible;
 	};
 });
+// Define a class for the LED Light
+var LEDLight = Container.expand(function () {
+	var self = Container.call(this);
+	var ledGraphics = self.attachAsset('ledLight', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.x = 2048 / 2; // Center the LED light horizontally
+	self.y = 2732 / 2 - 1000; // Position the LED light above the center
+});
+// Define a class for the LightSwitch
+var LightSwitch = Container.expand(function () {
+	var self = Container.call(this);
+	var switchGraphics = self.attachAsset('lightswitch', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.x = 2048 / 2 + 800;
+	self.y = 2732 / 2 - 500; // Move the light switch up by 500 units
+	self.isTouched = false;
+	// Event handler for when the switch is touched
+	self.down = function (x, y, obj) {
+		self.isTouched = true;
+		LK.getSound('ls').play(); // Play 'ls' sound when the light switch is touched
+		// Mirror the light switch vertically
+		switchGraphics.scale.y *= -1;
+	};
+});
 // Define a class for Snowflake
 var Snowflake = Container.expand(function () {
 	var self = Container.call(this);
 	var snowflakeGraphics = self.attachAsset('snowflake', {
@@ -168,10 +196,10 @@
 	var stickyNoteGraphics = self.attachAsset('stickyNote', {
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
-	self.x = 2048 / 2; // Center the sticky note horizontally
-	self.y = 2732 / 2; // Center the sticky note vertically
+	self.x = 2048 / 2 - 300; // Move the sticky note left by 300 units
+	self.y = 2732 / 2 + 700; // Move the sticky note up by 500 units
 	self.touchCount = 0; // Initialize touch counter
 	// Method to handle touch events
 	self.down = function (x, y, obj) {
 		self.touchCount++;
@@ -293,8 +321,15 @@
 	snowflakes.push(snowflake);
 }
 // Add the wall to the game
 var wall = game.addChild(new Wall());
+// Add the light switch to the game
+var lightSwitch = game.addChild(new LightSwitch());
+// Add the LED light to the game
+var ledLight = new LEDLight();
+ledLight.x = lightSwitch.x; // Align LED light with the light switch
+ledLight.y = lightSwitch.y; // Align LED light with the light switch
+game.addChild(ledLight);
 // Add the ceiling light to the game, ensuring it is in front of the wallpaper
 var wallpaper = game.addChildAt(new Wallpaper(), 0); // Ensure wallpaper is rendered behind other elements
 // Add the ceiling light to the game, ensuring it is in front of the wallpaper
 ceilingLight = game.addChild(new CeilingLight());
@@ -313,8 +348,9 @@
 // Add the wooden box to the game
 var woodenBox = game.addChild(new WoodenBox());
 var toggleSwitch = game.addChild(new ToggleSwitch());
 toggleSwitch.isTouched = false; // Ensure toggle switch is in close state when the game starts
+var lightSwitch = game.addChild(new LightSwitch());
 var catPaw = game.addChild(new CatPaw());
 catPaw.visible = false; // Ensure the cat's paw is initially invisible when the game starts
 game.setChildIndex(catPaw, game.children.length - 1);
 // Add the sticky note to the game
@@ -324,8 +360,9 @@
 // Add the dark overlay to the game
 var darkOverlay = game.addChild(new DarkOverlay());
 game.setChildIndex(darkOverlay, game.children.length - 1); // Ensure darkOverlay is rendered above wallpaper
 // Re-add the LED light to ensure it is rendered on top of the dark overlay
+game.setChildIndex(ledLight, game.children.length - 1); // Ensure ledLight is rendered above darkOverlay
 // Add 'Close' text to the center of the map
 var closeText = new Text2('Close', {
 	size: 75,
 	fill: 0x000000
@@ -344,13 +381,19 @@
 openText.y = 2732 / 2 + 500; // Move down by 500 units
 game.addChild(openText);
 // Game update loop
 game.update = function () {
+	// Check if the light switch is touched
+	if (lightSwitch.isTouched && ceilingLight.visible) {
+		darkOverlay.toggle(); // Toggle the dark overlay
+		lightSwitch.isTouched = false; // Reset the switch state
+	}
 	ceilingLight.updateSwaying(); // Update swaying effect for ceiling light
 	// Update snowflakes
 	for (var i = 0; i < snowflakes.length; i++) {
 		snowflakes[i].update();
 	}
+	ledLight.visible = darkOverlay.visible; // Ensure LED light is only visible when darkOverlay is active
 	// Move the cat down by 600 units
 	if (toggleSwitch.isTouched) {
 		if (!boxLid.visible) {
 			cat.y = 2732 / 2 + 790; // Ensure the cat's position is set correctly when visible
@@ -362,8 +405,19 @@
 // Handle touch events on the game
 game.down = function (x, y, obj) {
 	// Convert global coordinates to local game coordinates
 	var localPos = game.toLocal(obj.global);
+	// Check if the touch is on the light switch
+	if (lightSwitch.intersects({
+		x: localPos.x,
+		y: localPos.y,
+		width: 1,
+		height: 1
+	})) {
+		lightSwitch.down(x, y, obj);
+		LK.effects.flashScreen(0xff0000, 1000); // Flash screen red
+		LK.showGameOver(); // End the game
+	}
 	// Check if the touch is on the sticky note
 	if (stickyNote.intersects({
 		x: localPos.x,
 		y: localPos.y,