===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,270 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var Lane = Container.expand(function (laneIndex) {
+	var self = Container.call(this);
+	var laneGraphics = self.attachAsset('lane', {
+		anchorX: 0.5,
+		anchorY: 0
+	});
+	var hitZone = self.attachAsset('hitZone', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.laneIndex = laneIndex;
+	self.x = 2048 / 6 * (laneIndex + 1);
+	hitZone.y = 2500;
+	hitZone.alpha = 0.3;
+	return self;
+});
+var Note = Container.expand(function () {
+	var self = Container.call(this);
+	var noteGraphics = self.attachAsset('note', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 3;
+	self.lane = 0;
+	self.isActive = true;
+	self.update = function () {
+		if (self.isActive) {
+			self.y += self.speed;
+		}
+	};
+	return self;
+});
+var Tower = Container.expand(function () {
+	var self = Container.call(this);
+	var towerGraphics = self.attachAsset('tower', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.maxHealth = 100;
+	self.health = self.maxHealth;
+	self.takeDamage = function (damage) {
+		self.health -= damage;
+		if (self.health <= 0) {
+			self.health = 0;
+			LK.showGameOver();
+		}
+		// Flash tower red when damaged
+		LK.effects.flashObject(self, 0xff0000, 300);
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x1a1a2e
+});
+
+/**** 
+* Game Code
+****/ 
+var lanes = [];
+var notes = [];
+var tower;
+var score = 0;
+var combo = 0;
+var gameSpeed = 1;
+var spawnTimer = 0;
+var healthBarFg;
+var healthBarBg;
+var scoreTxt;
+var comboTxt;
+var feedbackTxt;
+var feedbackTimer = 0;
+// Create lanes
+for (var i = 0; i < 5; i++) {
+	var lane = new Lane(i);
+	lanes.push(lane);
+	game.addChild(lane);
+}
+// Create tower
+tower = new Tower();
+tower.x = 2048 / 2;
+tower.y = 2600;
+game.addChild(tower);
+// Create health bar
+healthBarBg = LK.getAsset('healthBarBg', {
+	anchorX: 0.5,
+	anchorY: 0
+});
+healthBarFg = LK.getAsset('healthBar', {
+	anchorX: 0,
+	anchorY: 0
+});
+LK.gui.top.addChild(healthBarBg);
+LK.gui.top.addChild(healthBarFg);
+healthBarBg.x = 0;
+healthBarBg.y = 100;
+healthBarFg.x = -150;
+healthBarFg.y = 100;
+// Create UI text
+scoreTxt = new Text2('Score: 0', {
+	size: 60,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0.5, 0);
+LK.gui.topRight.addChild(scoreTxt);
+scoreTxt.x = -50;
+scoreTxt.y = 50;
+comboTxt = new Text2('Combo: 0', {
+	size: 40,
+	fill: 0xFFFF00
+});
+comboTxt.anchor.set(0.5, 0);
+LK.gui.topRight.addChild(comboTxt);
+comboTxt.x = -50;
+comboTxt.y = 120;
+feedbackTxt = new Text2('', {
+	size: 80,
+	fill: 0x00FF00
+});
+feedbackTxt.anchor.set(0.5, 0.5);
+LK.gui.center.addChild(feedbackTxt);
+function spawnNote() {
+	var note = new Note();
+	var laneIndex = Math.floor(Math.random() * 5);
+	note.lane = laneIndex;
+	note.x = lanes[laneIndex].x;
+	note.y = -50;
+	note.speed = 3 + gameSpeed * 0.5;
+	notes.push(note);
+	game.addChild(note);
+}
+function updateHealthBar() {
+	var healthPercent = tower.health / tower.maxHealth;
+	healthBarFg.scaleX = healthPercent;
+	if (healthPercent > 0.6) {
+		healthBarFg.tint = 0x00ff00;
+	} else if (healthPercent > 0.3) {
+		healthBarFg.tint = 0xffff00;
+	} else {
+		healthBarFg.tint = 0xff0000;
+	}
+}
+function checkNoteHit(note, timing) {
+	var distance = Math.abs(note.y - 2500);
+	var perfectRange = 30;
+	var goodRange = 60;
+	if (distance <= perfectRange) {
+		// Perfect hit
+		score += 100 + combo * 10;
+		combo++;
+		showFeedback('PERFECT!', 0x00ff00);
+		LK.getSound('hit').play();
+		return true;
+	} else if (distance <= goodRange) {
+		// Good hit
+		score += 50 + combo * 5;
+		combo++;
+		showFeedback('GOOD', 0xffff00);
+		LK.getSound('hit').play();
+		return true;
+	} else {
+		// Miss
+		combo = 0;
+		showFeedback('MISS', 0xff0000);
+		LK.getSound('miss').play();
+		return false;
+	}
+}
+function showFeedback(text, color) {
+	feedbackTxt.setText(text);
+	feedbackTxt.tint = color;
+	feedbackTxt.alpha = 1;
+	feedbackTimer = 60; // Show for 1 second
+}
+function updateUI() {
+	scoreTxt.setText('Score: ' + score);
+	comboTxt.setText('Combo: ' + combo);
+	if (feedbackTimer > 0) {
+		feedbackTimer--;
+		feedbackTxt.alpha = feedbackTimer / 60;
+	}
+}
+game.down = function (x, y, obj) {
+	// Check which lane was tapped
+	var tappedLane = -1;
+	for (var i = 0; i < lanes.length; i++) {
+		var laneX = lanes[i].x;
+		if (Math.abs(x - laneX) < 100) {
+			tappedLane = i;
+			break;
+		}
+	}
+	if (tappedLane === -1) return;
+	// Find the closest note in that lane
+	var closestNote = null;
+	var closestDistance = Infinity;
+	for (var i = 0; i < notes.length; i++) {
+		var note = notes[i];
+		if (note.lane === tappedLane && note.isActive) {
+			var distance = Math.abs(note.y - 2500);
+			if (distance < closestDistance && distance < 100) {
+				closestDistance = distance;
+				closestNote = note;
+			}
+		}
+	}
+	if (closestNote) {
+		var hit = checkNoteHit(closestNote, 0);
+		if (hit) {
+			closestNote.isActive = false;
+			closestNote.destroy();
+			var index = notes.indexOf(closestNote);
+			if (index > -1) {
+				notes.splice(index, 1);
+			}
+		}
+	}
+};
+game.update = function () {
+	// Spawn notes
+	spawnTimer++;
+	var spawnRate = Math.max(30 - Math.floor(LK.ticks / 1800), 15); // Increase spawn rate over time
+	if (spawnTimer >= spawnRate) {
+		spawnNote();
+		spawnTimer = 0;
+	}
+	// Update notes
+	for (var i = notes.length - 1; i >= 0; i--) {
+		var note = notes[i];
+		if (!note.isActive) continue;
+		// Check if note reached the bottom without being hit
+		if (note.y > 2550) {
+			tower.takeDamage(10);
+			combo = 0;
+			showFeedback('MISSED!', 0xff0000);
+			LK.getSound('miss').play();
+			note.destroy();
+			notes.splice(i, 1);
+			continue;
+		}
+		// Remove notes that are way off screen
+		if (note.y > 2800) {
+			note.destroy();
+			notes.splice(i, 1);
+		}
+	}
+	// Increase difficulty over time
+	if (LK.ticks % 1800 === 0) {
+		// Every 30 seconds
+		gameSpeed += 0.1;
+	}
+	// Update UI
+	updateUI();
+	updateHealthBar();
+	// Update score in LK system
+	LK.setScore(score);
+};
+// Start background music
+LK.playMusic('bgmusic');
\ No newline at end of file