===================================================================
--- original.js
+++ change.js
@@ -70,20 +70,13 @@
 	startButton.on('down', function () {
 		self.removeChild(startButton);
 		hero = self.addChild(new Hero());
 		var enemies = [];
+		var newEnemy = self.addChild(new Enemy());
+		enemies.push(newEnemy);
 		hero.x = 1024;
 		hero.y = 1366;
 		self.startingScene = false;
-		var spawnEnemy = function () {
-			var newEnemy = self.addChild(new Enemy());
-			newEnemy.x = Math.random() * 2048;
-			newEnemy.y = Math.random() * 2732;
-			newEnemy.scale.x = newEnemy.scale.y = Math.random() * 2 + 0.5;
-			enemies.push(newEnemy);
-			LK.setTimeout(spawnEnemy, 2000);
-		};
-		LK.setTimeout(spawnEnemy, 2000);
 	});
 	var leftWall = self.addChild(new Wall());
 	leftWall.width = 81.92;
 	leftWall.height = 2732;
@@ -103,8 +96,17 @@
 	bottomWall.width = 2048;
 	bottomWall.height = 109.28;
 	bottomWall.x = 0;
 	bottomWall.y = 2732 - 109.28;
+	var spawnEnemy = function () {
+		var newEnemy = self.addChild(new Enemy());
+		newEnemy.x = Math.random() * 2048;
+		newEnemy.y = Math.random() * 2732;
+		newEnemy.scale.x = newEnemy.scale.y = Math.random() * 2 + 0.5;
+		enemies.push(newEnemy);
+		LK.setTimeout(spawnEnemy, 2000);
+	};
+	LK.setTimeout(spawnEnemy, 2000);
 	var heroBullets = [];
 	var enemyBullets = [];
 	var isGameOver = false;
 	var tickOffset = 0;
@@ -151,10 +153,10 @@
 					var other = enemies[i];
 					var dx = enemy.x - other.x;
 					var dy = enemy.y - other.y;
 					var distance = Math.sqrt(dx * dx + dy * dy);
-					if (distance < (enemy.graphics.width + other.graphics.width) / 2) {
-						var overlap = (enemy.graphics.width + other.graphics.width) / 2 - distance;
+					if (distance < enemy.graphics.width) {
+						var overlap = enemy.graphics.width - distance;
 						var adjustX = overlap / 2 * (dx / distance);
 						var adjustY = overlap / 2 * (dy / distance);
 						enemy.x += adjustX;
 						enemy.y += adjustY;
@@ -162,64 +164,55 @@
 						other.y -= adjustY;
 					}
 				}
 			}
-			if (Math.random() < 0.01) {
-				var newBullet = new EnemyBullet();
-				newBullet.x = enemy.x;
-				newBullet.y = enemy.y;
-				var dx = hero.x - enemy.x;
-				var dy = hero.y - enemy.y;
-				var mag = Math.sqrt(dx * dx + dy * dy);
-				newBullet.speedX = 10 * dx / mag;
-				newBullet.speedY = 10 * dy / mag;
-				enemyBullets.push(newBullet);
-				self.addChild(newBullet);
-			}
 		});
-		for (var a = heroBullets.length - 1; a >= 0; a--) {
-			heroBullets[a].move();
-			if (heroBullets[a].y < 0 || heroBullets[a].y > 2732 || heroBullets[a].x < 0 || heroBullets[a].x > 2048) {
-				heroBullets[a].destroy();
-				heroBullets.splice(a, 1);
-			}
-			for (var b = enemyBullets.length - 1; b >= 0; b--) {
-				if (heroBullets[a].intersects(enemyBullets[b])) {
+		self.updateBullets = function () {
+			for (var a = heroBullets.length - 1; a >= 0; a--) {
+				heroBullets[a].move();
+				if (heroBullets[a].y < 0 || heroBullets[a].y > 2732 || heroBullets[a].x < 0 || heroBullets[a].x > 2048) {
 					heroBullets[a].destroy();
-					enemyBullets[b].destroy();
 					heroBullets.splice(a, 1);
-					enemyBullets.splice(b, 1);
-					break;
 				}
-			}
-			for (var e = enemies.length - 1; e >= 0; e--) {
-				if (heroBullets[a] && enemies[e] && heroBullets[a].intersects(enemies[e])) {
-					var explosion = self.createAsset('explosion', 'Explosion Animation', .5, .5);
-					explosion.x = enemies[e].x;
-					explosion.y = enemies[e].y;
-					enemies[e].destroy();
-					enemies.splice(e, 1);
-					heroBullets[a].destroy();
-					heroBullets.splice(a, 1);
-					LK.setTimeout(function () {
-						explosion.destroy();
-					}, 1000);
-					break;
+				for (var b = enemyBullets.length - 1; b >= 0; b--) {
+					if (heroBullets[a].intersects(enemyBullets[b])) {
+						heroBullets[a].destroy();
+						enemyBullets[b].destroy();
+						heroBullets.splice(a, 1);
+						enemyBullets.splice(b, 1);
+						break;
+					}
 				}
+				for (var e = enemies.length - 1; e >= 0; e--) {
+					if (heroBullets[a] && enemies[e] && heroBullets[a].intersects(enemies[e])) {
+						var explosion = self.createAsset('explosion', 'Explosion Animation', .5, .5);
+						explosion.x = enemies[e].x;
+						explosion.y = enemies[e].y;
+						enemies[e].destroy();
+						enemies.splice(e, 1);
+						heroBullets[a].destroy();
+						heroBullets.splice(a, 1);
+						LK.setTimeout(function () {
+							explosion.destroy();
+						}, 1000);
+						break;
+					}
+				}
 			}
-		}
-		for (var a = enemyBullets.length - 1; a >= 0; a--) {
-			if (enemyBullets[a]) {
-				enemyBullets[a].move();
-				if (enemyBullets[a].y > 2732 + 50) {
-					enemyBullets[a].destroy();
-					enemyBullets.splice(a, 1);
+			for (var a = enemyBullets.length - 1; a >= 0; a--) {
+				if (enemyBullets[a]) {
+					enemyBullets[a].move();
+					if (enemyBullets[a].y > 2732 + 50) {
+						enemyBullets[a].destroy();
+						enemyBullets.splice(a, 1);
+					}
+					if (hero.intersects(enemyBullets[a])) {
+						isGameOver = true;
+					}
 				}
-				if (hero.intersects(enemyBullets[a])) {
-					isGameOver = true;
-				}
 			}
-		}
+		};
+		self.updateBullets();
 		var lastBulletTime = 0;
 		var bulletFireRate = 1000;
 		var lastBulletTime = 0;
 		var bulletFireRate = 500;
@@ -228,17 +221,8 @@
 		var touchDelay = 10000;
 		stage.on('down', function (obj) {
 			if (self.startingScene) {
 				self.startingScene = false;
-				var spawnEnemy = function () {
-					var newEnemy = self.addChild(new Enemy());
-					newEnemy.x = Math.random() * 2048;
-					newEnemy.y = Math.random() * 2732;
-					newEnemy.scale.x = newEnemy.scale.y = Math.random() * 2 + 0.5;
-					enemies.push(newEnemy);
-					LK.setTimeout(spawnEnemy, 2000);
-				};
-				LK.setTimeout(spawnEnemy, 2000);
 				return;
 			}
 			var now = Date.now();
 			if (now - lastTouchTime < touchDelay) return;