===================================================================
--- original.js
+++ change.js
@@ -1,71 +1,93 @@
-/****
+/**** 
 * Classes
-****/
+****/ 
 // No need to manually define assets, LK will handle this automatically.
 // Define a simple class for the light indicator
 var LightIndicator = Container.expand(function () {
-  var self = Container.call(this);
-  var light = self.attachAsset('light', {
-    anchorX: 0.5,
-    anchorY: 0.5
-  });
-  self.setColor = function (color) {
-    light.tint = color;
-  };
-  return self;
+	var self = Container.call(this);
+	var light = self.attachAsset('light', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.setColor = function (color) {
+		light.tint = color;
+	};
+	return self;
 });
 
-/****
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-  backgroundColor: 0x000000 // Init game with black background
+	backgroundColor: 0x000000 // Init game with black background
 });
 
-/****
+/**** 
 * Game Code
-****/
+****/ 
 // Initialize variables
-var lightIndicator;
+var lightIndex;
+// Removed unnecessary lightIndicator variable
 var startTime;
 var reactionTimeText;
 var gameStarted = false;
 // Function to start the game
 function startGame() {
-  gameStarted = true;
-  lightIndicator.setColor(0x00FF00); // Set light to green
-  startTime = Date.now();
-  LK.setTimeout(turnOffLight, Math.random() * 3000 + 2000); // Turn off light after a random time between 2-5 seconds
+	gameStarted = true;
+	var lightIndex = 0;
+	function turnOnNextLight() {
+		if (lightIndex < lightIndicators.length) {
+			lightIndicators[lightIndex].setColor(0x00FF00); // Set light to green
+			lightIndex++;
+			LK.setTimeout(turnOnNextLight, 1000); // Turn on next light after 1 second
+		} else {
+			startTime = Date.now();
+			LK.setTimeout(turnOffLight, Math.random() * 3000 + 2000); // Turn off light after a random time between 2-5 seconds
+		}
+	}
+	turnOnNextLight();
 }
 // Function to turn off the light
 function turnOffLight() {
-  lightIndicator.setColor(0x000000); // Set light to black
-  startTime = Date.now(); // Record the time when the light turns off
+	lightIndicators.forEach(function (light) {
+		light.setColor(0x000000); // Set light to black
+	});
+	startTime = Date.now(); // Record the time when the light turns off
 }
 // Function to handle screen tap
 function handleTap(x, y, obj) {
-  if (!gameStarted) {
-    startGame();
-  } else {
-    var reactionTime = Date.now() - startTime;
-    reactionTimeText.setText("Reaction Time: " + reactionTime + " ms");
-    gameStarted = false;
-  }
+	if (!gameStarted) {
+		startGame();
+	} else {
+		var reactionTime = Date.now() - startTime;
+		reactionTimeText.setText("Reaction Time: " + reactionTime + " ms");
+		gameStarted = false;
+		lightIndicators.forEach(function (light) {
+			light.setColor(0xFF0000); // Reset lights to red
+		});
+		reactionTimeText.setText("Reaction Time: 0 ms"); // Reset reaction time text
+	}
 }
-// Initialize light indicator
-lightIndicator = game.addChild(new LightIndicator());
-lightIndicator.x = 2048 / 2;
-lightIndicator.y = 2732 / 2;
-lightIndicator.setColor(0xFF0000); // Set initial light color to red
+// Initialize five light indicators
+var lightIndicators = [];
+for (var i = 0; i < 5; i++) {
+	var light = game.addChild(new LightIndicator());
+	light.x = 2048 / 2;
+	light.y = 2732 / 2 + i * 150 - 300; // Position lights vertically
+	light.setColor(0xFF0000); // Set initial light color to red
+	lightIndicators.push(light);
+}
 // Initialize reaction time text
 reactionTimeText = new Text2('Reaction Time: 0 ms', {
-  size: 100,
-  fill: "#ffffff"
+	size: 100,
+	fill: "#ffffff"
 });
 reactionTimeText.anchor.set(0.5, 0);
+reactionTimeText.x = 2048 / 2;
+reactionTimeText.y = 100;
 LK.gui.top.addChild(reactionTimeText);
 // Set up event listeners
 game.down = handleTap;
 game.update = function () {
-  // No need for continuous updates in this simple game
+	// No need for continuous updates in this simple game
 };
\ No newline at end of file