===================================================================
--- original.js
+++ change.js
@@ -75,11 +75,15 @@
 LK.gui.top.addChild(scoreTxt);
 var player = game.addChild(new Player());
 player.x = 1024;
 player.y = 2732 - player.height;
-var enemy = game.addChild(new Enemy());
-enemy.x = 0;
-enemy.y = Math.random() * 2732;
+var enemies = [];
+for (var i = 0; i < 5; i++) {
+	var enemy = game.addChild(new Enemy());
+	enemy.x = Math.random() * 2048;
+	enemy.y = Math.random() * 2732;
+	enemies.push(enemy);
+}
 var obstacles = [];
 for (var i = 0; i < 15; i++) {
 	var obstacle = game.addChild(new Obstacle());
 	obstacle.x = Math.random() * 2048;
@@ -93,9 +97,20 @@
 	player.movingUp = false;
 };
 game.update = function () {
 	player.update();
-	enemy.update();
+	enemies.forEach(function (enemy) {
+		enemy.update();
+		if (player.intersects(enemy)) {
+			LK.showGameOver();
+		}
+	});
+	if (LK.ticks % 180 === 0 && enemies.length < 10) {
+		var newEnemy = game.addChild(new Enemy());
+		newEnemy.x = -newEnemy.width;
+		newEnemy.y = Math.random() * 2732;
+		enemies.push(newEnemy);
+	}
 	if (LK.ticks % 300 === 0 && obstacles.length < 25) {
 		// Add new obstacle every 10 seconds
 		var newObstacle = game.addChild(new Obstacle());
 		newObstacle.x = 2048 + Math.random() * 2048;
@@ -116,9 +131,9 @@
 		if (obstacle.x > player.x) {
 			obstacle.scored = false; // Reset scored status when obstacle is ahead
 		}
 	});
-	if (player.intersects(enemy) || obstacles.some(function (obstacle) {
+	if (obstacles.some(function (obstacle) {
 		return player.intersects(obstacle);
 	})) {
 		LK.showGameOver();
 	}