===================================================================
--- original.js
+++ change.js
@@ -1,90 +1,92 @@
-/****
+/**** 
 * Classes
-****/
+****/ 
 //<Assets used in the game will automatically appear here>
 //<Write imports for supported plugins here>
 // Define a class for the PianoTile
 var PianoTile = Container.expand(function () {
-  var self = Container.call(this);
-  // Create and attach a black rectangle as the tile
-  var tileGraphics = self.attachAsset('tile', {
-    anchorX: 0.5,
-    anchorY: 0.5
-  });
-  // Set the speed of the tile
-  self.speed = 5;
-  // Update function to move the tile downwards
-  self.update = function () {
-    self.y += self.speed;
-  };
-  // Function to handle tap on the tile
-  self.tap = function () {
-    // Increase score and destroy the tile
-    LK.setScore(LK.getScore() + 1);
-    self.destroy();
-  };
+	var self = Container.call(this);
+	// Create and attach a black rectangle as the tile
+	var tileGraphics = self.attachAsset('tile', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	// Set the speed of the tile
+	self.speed = 5;
+	// Update function to move the tile downwards
+	self.update = function () {
+		self.y += self.speed;
+	};
+	// Function to handle tap on the tile
+	self.tap = function () {
+		// Increase score and destroy the tile
+		LK.setScore(LK.getScore() + 1);
+		self.destroy();
+	};
 });
 
-/****
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-  backgroundColor: 0x000000 //Init game with black background 
+	backgroundColor: 0x000000 //Init game with black background 
 });
 
-/****
+/**** 
 * Game Code
-****/
+****/ 
 // Initialize score display
 var scoreTxt = new Text2('0', {
-  size: 150,
-  fill: 0xFFFFFF
+	size: 150,
+	fill: 0xFFFFFF
 });
 scoreTxt.anchor.set(0.5, 0);
 LK.gui.top.addChild(scoreTxt);
 // Array to keep track of active tiles
 var tiles = [];
 // Function to create a new tile
 function createTile() {
-  var newTile = new PianoTile();
-  // Randomly position the tile in one of the two lanes
-  newTile.x = Math.random() > 0.5 ? 512 : 1536;
-  newTile.y = -100; // Start above the screen
-  tiles.push(newTile);
-  game.addChild(newTile);
+	var newTile = new PianoTile();
+	// Randomly position the tile in one of the two lanes
+	newTile.x = Math.random() > 0.5 ? 512 : 1536;
+	newTile.y = -100; // Start above the screen
+	tiles.push(newTile);
+	game.addChild(newTile);
 }
 // Game update function
 game.update = function () {
-  // Update score display
-  scoreTxt.setText(LK.getScore());
-  // Create a new tile every 60 ticks
-  if (LK.ticks % 60 == 0) {
-    createTile();
-  }
-  // Update and check each tile
-  for (var i = tiles.length - 1; i >= 0; i--) {
-    var tile = tiles[i];
-    tile.update();
-    // Check if tile is off-screen
-    if (tile.y > 2732) {
-      // End game if a tile is missed
-      LK.showGameOver();
-      return;
-    }
-  }
+	// Update score display
+	scoreTxt.setText(LK.getScore());
+	// Create a new tile every 60 ticks
+	if (LK.ticks % 60 == 0) {
+		createTile();
+	}
+	// Update and check each tile
+	for (var i = tiles.length - 1; i >= 0; i--) {
+		var tile = tiles[i];
+		tile.update();
+		// Check if tile is off-screen
+		if (tile.y > 2732) {
+			// End game if a tile is missed
+			LK.showGameOver();
+			return;
+		}
+	}
 };
 // Handle tap events
 game.down = function (x, y, obj) {
-  // Check if a tile was tapped
-  for (var i = tiles.length - 1; i >= 0; i--) {
-    var tile = tiles[i];
-    if (tile.containsPoint({
-      x: x,
-      y: y
-    })) {
-      tile.tap();
-      tiles.splice(i, 1);
-      break;
-    }
-  }
+	// Check if a tile was tapped
+	for (var i = tiles.length - 1; i >= 0; i--) {
+		var tile = tiles[i];
+		if (tile.intersects({
+			x: x,
+			y: y,
+			width: 1,
+			height: 1
+		})) {
+			tile.tap();
+			tiles.splice(i, 1);
+			break;
+		}
+	}
 };
\ No newline at end of file