===================================================================
--- original.js
+++ change.js
@@ -13,8 +13,22 @@
 	self.updateLives = function (lives) {
 		self.livesText.setText('Lives: ' + lives);
 	};
 });
+// ScoreDisplay class
+var ScoreDisplay = Container.expand(function () {
+	var self = Container.call(this);
+	self.scoreText = new Text2('Score: 0', {
+		size: 100,
+		fill: "#ffffff"
+	});
+	self.scoreText.anchor.set(0.5, 0);
+	self.scoreText.y = 150; // Offset from the LivesDisplay
+	LK.gui.top.addChild(self.scoreText);
+	self.updateScore = function (score) {
+		self.scoreText.setText('Score: ' + score);
+	};
+});
 // Hero class
 var Hero = Container.expand(function () {
 	var self = Container.call(this);
 	var heroGraphics = self.createAsset('hero', 'Hero character', 0.5, 0.5);
@@ -55,11 +69,13 @@
 
 /**** 
 * Game Code
 ****/
-// Initialize hero and lives display
+// Initialize hero, lives display, and score display
 var hero = game.addChild(new Hero());
 var livesDisplay = game.addChild(new LivesDisplay());
+var scoreDisplay = game.addChild(new ScoreDisplay());
+var score = 0; // Global score variable
 
 // Update the lives display when hero's lives change
 Hero.prototype.updateLives = function () {
 	livesDisplay.updateLives(this.lives);
@@ -115,9 +131,11 @@
 		bullets[i].move();
 		// Check for bullet-enemy collisions
 		for (var j = enemies.length - 1; j >= 0; j--) {
 			if (bullets[i] && bullets[i].intersects(enemies[j])) {
-				// Destroy enemy
+				// Destroy enemy and update score
+				score += 1; // Increment score
+				scoreDisplay.updateScore(score); // Update score display
 				enemies[j].destroy();
 				enemies.splice(j, 1);
 				// Destroy bullet
 				bullets[i].destroy();