===================================================================
--- original.js
+++ change.js
@@ -1,66 +1,71 @@
-/****
+/**** 
 * Classes
-****/
+****/ 
 // Block class
 var Block = Container.expand(function () {
-  var self = Container.call(this);
-  var blockGraphics = self.attachAsset('block', {
-    anchorX: 0.5,
-    anchorY: 0.5
-  });
-  self.speed = 5;
-  self.update = function () {
-    self.y += self.speed;
-    if (self.y > 2732 + 50) {
-      self.destroy();
-      blocks.splice(blocks.indexOf(self), 1);
-    }
-  };
+	var self = Container.call(this);
+	var blockGraphics = self.attachAsset('block', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 5;
+	self.horizontalSpeed = Math.random() < 0.5 ? -2 : 2; // Random initial horizontal direction
+	self.update = function () {
+		self.y += self.speed;
+		self.x += self.horizontalSpeed;
+		if (self.x < 0 || self.x > 2048) {
+			self.horizontalSpeed *= -1; // Reverse direction when hitting screen edges
+		}
+		if (self.y > 2732 + 50) {
+			self.destroy();
+			blocks.splice(blocks.indexOf(self), 1);
+		}
+	};
 });
 // Bullet class
 var Bullet = Container.expand(function () {
-  var self = Container.call(this);
-  var bulletGraphics = self.attachAsset('bullet', {
-    anchorX: 0.5,
-    anchorY: 0.5
-  });
-  self.speed = -10;
-  self.update = function () {
-    self.y += self.speed;
-    if (self.y < -50) {
-      self.destroy();
-      bullets.splice(bullets.indexOf(self), 1);
-    }
-  };
+	var self = Container.call(this);
+	var bulletGraphics = self.attachAsset('bullet', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = -10;
+	self.update = function () {
+		self.y += self.speed;
+		if (self.y < -50) {
+			self.destroy();
+			bullets.splice(bullets.indexOf(self), 1);
+		}
+	};
 });
 //<Assets used in the game will automatically appear here>
 // Plane class
 var Plane = Container.expand(function () {
-  var self = Container.call(this);
-  var planeGraphics = self.attachAsset('plane', {
-    anchorX: 0.5,
-    anchorY: 0.5
-  });
-  self.shoot = function () {
-    var bullet = new Bullet();
-    bullet.x = self.x;
-    bullet.y = self.y - planeGraphics.height / 2;
-    game.addChild(bullet);
-    bullets.push(bullet);
-  };
+	var self = Container.call(this);
+	var planeGraphics = self.attachAsset('plane', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.shoot = function () {
+		var bullet = new Bullet();
+		bullet.x = self.x;
+		bullet.y = self.y - planeGraphics.height / 2;
+		game.addChild(bullet);
+		bullets.push(bullet);
+	};
 });
 
-/****
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-  backgroundColor: 0x000000 //Init game with black background 
+	backgroundColor: 0x000000 //Init game with black background 
 });
 
-/****
+/**** 
 * Game Code
-****/
+****/ 
 var plane = new Plane();
 plane.x = 2048 / 2;
 plane.y = 2732 - 200;
 game.addChild(plane);
@@ -68,59 +73,59 @@
 var blocks = [];
 var hearts = 3;
 var score = 0;
 var scoreTxt = new Text2('Score: 0', {
-  size: 100,
-  fill: "#ffffff"
+	size: 100,
+	fill: "#ffffff"
 });
 scoreTxt.anchor.set(0.5, 0);
 LK.gui.top.addChild(scoreTxt);
 var heartsTxt = new Text2('Hearts: 3', {
-  size: 100,
-  fill: "#ffffff"
+	size: 100,
+	fill: "#ffffff"
 });
 heartsTxt.anchor.set(0.5, 0);
 LK.gui.topRight.addChild(heartsTxt);
 game.down = function (x, y, obj) {
-  plane.x = x;
-  plane.y = y;
+	plane.x = x;
+	plane.y = y;
 };
 game.move = function (x, y, obj) {
-  plane.x = x;
-  plane.y = y;
+	plane.x = x;
+	plane.y = y;
 };
 game.update = function () {
-  if (LK.ticks % 60 === 0) {
-    plane.shoot();
-  }
-  if (LK.ticks % 120 === 0) {
-    var block = new Block();
-    block.x = Math.random() * 2048;
-    block.y = -50;
-    game.addChild(block);
-    blocks.push(block);
-  }
-  bullets.forEach(function (bullet) {
-    blocks.forEach(function (block) {
-      if (bullet.intersects(block)) {
-        bullet.destroy();
-        block.destroy();
-        bullets.splice(bullets.indexOf(bullet), 1);
-        blocks.splice(blocks.indexOf(block), 1);
-        score += 10;
-        scoreTxt.setText('Score: ' + score);
-      }
-    });
-  });
-  blocks.forEach(function (block) {
-    if (plane.intersects(block)) {
-      block.destroy();
-      blocks.splice(blocks.indexOf(block), 1);
-      hearts -= 1;
-      heartsTxt.setText('Hearts: ' + hearts);
-      if (hearts <= 0) {
-        LK.effects.flashScreen(0xff0000, 1000);
-        LK.showGameOver();
-      }
-    }
-  });
+	if (LK.ticks % 60 === 0) {
+		plane.shoot();
+	}
+	if (LK.ticks % 120 === 0) {
+		var block = new Block();
+		block.x = Math.random() * 2048;
+		block.y = -50;
+		game.addChild(block);
+		blocks.push(block);
+	}
+	bullets.forEach(function (bullet) {
+		blocks.forEach(function (block) {
+			if (bullet.intersects(block)) {
+				bullet.destroy();
+				block.destroy();
+				bullets.splice(bullets.indexOf(bullet), 1);
+				blocks.splice(blocks.indexOf(block), 1);
+				score += 10;
+				scoreTxt.setText('Score: ' + score);
+			}
+		});
+	});
+	blocks.forEach(function (block) {
+		if (plane.intersects(block)) {
+			block.destroy();
+			blocks.splice(blocks.indexOf(block), 1);
+			hearts -= 1;
+			heartsTxt.setText('Hearts: ' + hearts);
+			if (hearts <= 0) {
+				LK.effects.flashScreen(0xff0000, 1000);
+				LK.showGameOver();
+			}
+		}
+	});
 };
\ No newline at end of file