===================================================================
--- original.js
+++ change.js
@@ -130,8 +130,33 @@
 });
 // Define the EnemyType2 class
 var EnemyType2 = Container.expand(function () {
 	var self = Container.call(this);
+	self.shoot = function () {
+		if (LK.ticks - self.lastShotTick >= self.shootInterval) {
+			var newEnemyBullet = new EnemyBullet();
+			newEnemyBullet.x = self.x;
+			newEnemyBullet.y = self.y + self.height / 2;
+			// Calculate the direction to the hero
+			var direction = {
+				x: spaceRanger.x - self.x,
+				y: spaceRanger.y - self.y
+			};
+			var magnitude = Math.sqrt(direction.x * direction.x + direction.y * direction.y);
+			direction.x /= magnitude;
+			direction.y /= magnitude;
+			// Set bullet speed to aim at the hero
+			newEnemyBullet.speedX = direction.x * 5;
+			newEnemyBullet.speedY = direction.y * 5;
+			newEnemyBullet.move = function () {
+				this.x += this.speedX;
+				this.y += this.speedY;
+			};
+			game.addChild(newEnemyBullet);
+			enemyBullets.push(newEnemyBullet);
+			self.lastShotTick = LK.ticks;
+		}
+	};
 	var enemyGraphics = self.createAsset('enemyType2', 'Enemy Type 2', 0.5, 0.5);
 	self.speed = 4;
 	self.health = 2;
 	self.move = function () {
@@ -140,8 +165,33 @@
 });
 // Define the EnemyType3 class
 var EnemyType3 = Container.expand(function () {
 	var self = Container.call(this);
+	self.shoot = function () {
+		if (LK.ticks - self.lastShotTick >= self.shootInterval) {
+			var newEnemyBullet = new EnemyBullet();
+			newEnemyBullet.x = self.x;
+			newEnemyBullet.y = self.y + self.height / 2;
+			// Calculate the direction to the hero
+			var direction = {
+				x: spaceRanger.x - self.x,
+				y: spaceRanger.y - self.y
+			};
+			var magnitude = Math.sqrt(direction.x * direction.x + direction.y * direction.y);
+			direction.x /= magnitude;
+			direction.y /= magnitude;
+			// Set bullet speed to aim at the hero
+			newEnemyBullet.speedX = direction.x * 5;
+			newEnemyBullet.speedY = direction.y * 5;
+			newEnemyBullet.move = function () {
+				this.x += this.speedX;
+				this.y += this.speedY;
+			};
+			game.addChild(newEnemyBullet);
+			enemyBullets.push(newEnemyBullet);
+			self.lastShotTick = LK.ticks;
+		}
+	};
 	var enemyGraphics = self.createAsset('enemyType3', 'Enemy Type 3', 0.5, 0.5);
 	self.speed = 1;
 	self.health = 7;
 	self.move = function () {
@@ -150,8 +200,33 @@
 });
 // Define the EnemyType4 class
 var EnemyType4 = Container.expand(function () {
 	var self = Container.call(this);
+	self.shoot = function () {
+		if (LK.ticks - self.lastShotTick >= self.shootInterval) {
+			var newEnemyBullet = new EnemyBullet();
+			newEnemyBullet.x = self.x;
+			newEnemyBullet.y = self.y + self.height / 2;
+			// Calculate the direction to the hero
+			var direction = {
+				x: spaceRanger.x - self.x,
+				y: spaceRanger.y - self.y
+			};
+			var magnitude = Math.sqrt(direction.x * direction.x + direction.y * direction.y);
+			direction.x /= magnitude;
+			direction.y /= magnitude;
+			// Set bullet speed to aim at the hero
+			newEnemyBullet.speedX = direction.x * 5;
+			newEnemyBullet.speedY = direction.y * 5;
+			newEnemyBullet.move = function () {
+				this.x += this.speedX;
+				this.y += this.speedY;
+			};
+			game.addChild(newEnemyBullet);
+			enemyBullets.push(newEnemyBullet);
+			self.lastShotTick = LK.ticks;
+		}
+	};
 	var enemyGraphics = self.createAsset('enemyType4', 'Enemy Type 4', 0.5, 0.5);
 	self.speed = 3;
 	self.health = 4;
 	self.move = function () {
@@ -161,8 +236,33 @@
 });
 // Define the EnemyType5 class
 var EnemyType5 = Container.expand(function () {
 	var self = Container.call(this);
+	self.shoot = function () {
+		if (LK.ticks - self.lastShotTick >= self.shootInterval) {
+			var newEnemyBullet = new EnemyBullet();
+			newEnemyBullet.x = self.x;
+			newEnemyBullet.y = self.y + self.height / 2;
+			// Calculate the direction to the hero
+			var direction = {
+				x: spaceRanger.x - self.x,
+				y: spaceRanger.y - self.y
+			};
+			var magnitude = Math.sqrt(direction.x * direction.x + direction.y * direction.y);
+			direction.x /= magnitude;
+			direction.y /= magnitude;
+			// Set bullet speed to aim at the hero
+			newEnemyBullet.speedX = direction.x * 5;
+			newEnemyBullet.speedY = direction.y * 5;
+			newEnemyBullet.move = function () {
+				this.x += this.speedX;
+				this.y += this.speedY;
+			};
+			game.addChild(newEnemyBullet);
+			enemyBullets.push(newEnemyBullet);
+			self.lastShotTick = LK.ticks;
+		}
+	};
 	var enemyGraphics = self.createAsset('enemyType5', 'Enemy Type 5', 0.5, 0.5);
 	self.speed = 5;
 	self.health = 1;
 	self.move = function () {
@@ -342,9 +442,9 @@
 	}
 	// Move all aliens and make them shoot if they are of EnemyType1
 	for (var j = aliens.length - 1; j >= 0; j--) {
 		aliens[j].move();
-		if (aliens[j] instanceof EnemyType1) {
+		if (aliens[j].shoot) {
 			aliens[j].shoot();
 		}
 		if (aliens[j].y > 2732 + aliens[j].height / 2) {
 			aliens[j].destroy();