===================================================================
--- original.js
+++ change.js
@@ -89,8 +89,29 @@
 	var rightFlipper = self.addChild(new Flipper());
 	rightFlipper.x = 60;
 	rightFlipper.depth = -1;
 });
+var EnemyWave = Container.expand(function () {
+	var self = Container.call(this);
+	self.enemies = [];
+	self.spawnEnemy = function (x, y) {
+		var enemy = new Obstacle1(); // You can change this to any obstacle type
+		enemy.x = x;
+		enemy.y = y;
+		self.enemies.push(enemy);
+		game.addChild(enemy);
+	};
+	self.update = function () {
+		for (var i = self.enemies.length - 1; i >= 0; i--) {
+			var enemy = self.enemies[i];
+			enemy.y -= 2; // Move enemy upwards
+			if (enemy.y < 0) {
+				enemy.destroy();
+				self.enemies.splice(i, 1);
+			}
+		}
+	};
+});
 // Flipper class
 var Flipper = Container.expand(function () {
 	var self = Container.call(this);
 	var flipperGraphics = self.attachAsset('flippers', {
@@ -459,8 +480,16 @@
 
 /**** 
 * Game Code
 ****/ 
+var enemyWave = new EnemyWave();
+game.addChild(enemyWave);
+function spawnEnemyWave() {
+	enemyWave.spawnEnemy(0, 2732); // Bottom-left corner
+	enemyWave.spawnEnemy(2048, 2732); // Bottom-right corner
+	LK.setTimeout(spawnEnemyWave, 20000); // Spawn every 20 seconds
+}
+LK.setTimeout(spawnEnemyWave, 20000); // Initial call to spawn the first wave
 // Function to spawn power-ups every 20 seconds
 function spawnPowerUp() {
 	if (!firstPowerUpSpawned) {
 		if (LK.ticks < 300) {
@@ -592,8 +621,10 @@
 // Update bubbles
 for (var i = 0; i < bubbles.length; i++) {
 	bubbles[i].update();
 }
+// Update enemy waves
+enemyWave.update();
 // Define the current wave
 var currentWave = 0;
 var allWavesSpawnedOnce = false;
 // Spawn wave function
@@ -651,16 +682,10 @@
 	var obstacleTypes = [Obstacle1, Obstacle2, Obstacle3];
 	var obstacleType = obstacleTypes[Math.floor(Math.random() * obstacleTypes.length)];
 	layoutPositions.forEach(function (position) {
 		var obstacle = game.addChild(new obstacleType());
-		// Randomly decide if the obstacle should spawn from the bottom corners
-		if (Math.random() < 0.5) {
-			// Spawn from the left bottom corner
-			obstacle.x = Math.random() * (2048 / 2);
-		} else {
-			// Spawn from the right bottom corner
-			obstacle.x = 2048 / 2 + Math.random() * (2048 / 2);
-		}
+		// Position the obstacles according to the layout, using the grid for positioning
+		obstacle.x = 2048 / 2 + (position.x - gridSize / 2) * cellSize;
 		obstacle.y = 2732 + position.y * cellSize; // Spawn obstacles offscreen at the bottom
 		obstacles.push(obstacle);
 	});
 	currentWave++;