===================================================================
--- original.js
+++ change.js
@@ -27,21 +27,8 @@
 			}
 		}
 	};
 });
-// NewObject class
-var NewObject = Container.expand(function () {
-	var self = Container.call(this);
-	var newObjectGraphics = self.attachAsset('newObject', {
-		anchorX: 0.5,
-		anchorY: 0.5
-	});
-	self.speedX = -5;
-	self.move = function () {
-		// NewObject moves from right to left
-		self.x += self.speedX;
-	};
-});
 // Obstacle class
 var Obstacle = Container.expand(function () {
 	var self = Container.call(this);
 	var obstacleGraphics = self.attachAsset('obstacle', {
@@ -49,13 +36,18 @@
 		anchorY: 0.5,
 		shape: 'ellipse'
 	});
 	self.speedX = -5;
+	self.originalY = self.y; // Track the original y position
 	self.move = function () {
 		// Obstacle moves from right to left
 		self.x += self.speedX;
 		// Rotate obstacle counterclockwise
 		self.rotation -= 0.11;
+		// After 5 points, obstacles begin to smoothly rise and fall by 100 pixels
+		if (score > 5) {
+			self.y = self.originalY + 100 * Math.sin(LK.ticks / 60); // 60 ticks is approximately 1 second
+		}
 	};
 });
 
 /**** 
@@ -143,17 +135,14 @@
 		game.addChild(gameOverScoreTxt);
 		LK.showGameOver();
 	}
 });
-// Initialize bird, obstacles and new object
+// Initialize bird and obstacles
 // Yellow bird
 // Brown obstacles;
 var obstacle = game.addChild(new Obstacle());
 obstacle.x = 2120; // Start at the right edge of the screen
 obstacle.y = Math.random() * 2732; // Start at a random height;
-var newObject = game.addChild(new NewObject());
-newObject.x = 2120; // Start at the right edge of the screen
-newObject.y = Math.random() * 2732; // Start at a random height;
 // Initialize score counter
 var score = 0;
 var scoreTxt = new Text2(score.toString(), {
 	size: 100,
@@ -164,5 +153,12 @@
 // Update score every 2 seconds
 LK.setInterval(function () {
 	score++;
 	scoreTxt.setText(score.toString());
+	// After 5 points, obstacles begin to smoothly rise and fall by 100 pixels
+	if (score > 5) {
+		for (var i = 0; i < obstacles.length; i++) {
+			var obstacle = obstacles[i];
+			obstacle.y += 100 * Math.sin(LK.ticks / 60); // 60 ticks is approximately 1 second
+		}
+	}
 }, 1500);
\ No newline at end of file