===================================================================
--- original.js
+++ change.js
@@ -71,9 +71,9 @@
 // Function to create obstacles
 function createObstacle() {
 	var obstacle = new Obstacle();
 	obstacle.x = 2048;
-	obstacle.y = 1366 + (Math.floor(Math.random() * 3) - 1) * 300; // Random layer
+	obstacle.y = 1366 + (Math.floor(Math.random() * 3) - 1) * 600; // Random layer
 	obstacles.push(obstacle);
 	game.addChild(obstacle);
 }
 // Function to update game speed
@@ -101,15 +101,15 @@
 			obstacles.splice(i, 1);
 			score++;
 			scoreTxt.setText(score);
 		}
-		if (obstacles[i] && obstacles[i].intersects(player)) {
+		if (obstacles[i].intersects(player)) {
 			LK.effects.flashScreen(0xff0000, 1000);
 			LK.showGameOver();
 		}
 	}
 	// Create new obstacles
-	if (LK.ticks % 240 == 0) {
+	if (LK.ticks % 60 == 0) {
 		createObstacle();
 	}
 	// Update speed
 	updateSpeed();