===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,268 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var FallingBomb = Container.expand(function (lane) {
+	var self = Container.call(this);
+	var bombGraphics = self.attachAsset('bomb', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.lane = lane;
+	self.speed = 8;
+	self.update = function () {
+		self.y += self.speed;
+	};
+	return self;
+});
+var FallingNote = Container.expand(function (noteType, lane) {
+	var self = Container.call(this);
+	var noteGraphics = self.attachAsset('note' + noteType, {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.lane = lane;
+	self.speed = 8;
+	self.noteType = noteType;
+	self.update = function () {
+		self.y += self.speed;
+	};
+	return self;
+});
+var Player = Container.expand(function () {
+	var self = Container.call(this);
+	var playerGraphics = self.attachAsset('player', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.currentLane = 3;
+	self.shieldActive = false;
+	self.shieldTimer = 0;
+	self.update = function () {
+		if (self.shieldActive) {
+			self.shieldTimer--;
+			if (self.shieldTimer <= 0) {
+				self.shieldActive = false;
+				playerGraphics.tint = 0xFFFFFF;
+			}
+		}
+	};
+	self.activateShield = function () {
+		self.shieldActive = true;
+		self.shieldTimer = 300; // 5 seconds at 60fps
+		playerGraphics.tint = 0xFFD700;
+	};
+	return self;
+});
+var ShieldPowerup = Container.expand(function (lane) {
+	var self = Container.call(this);
+	var shieldGraphics = self.attachAsset('shield', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.lane = lane;
+	self.speed = 6;
+	self.update = function () {
+		self.y += self.speed;
+		shieldGraphics.rotation += 0.1;
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x2C3E50
+});
+
+/**** 
+* Game Code
+****/ 
+var player;
+var staircases = [];
+var fallingNotes = [];
+var fallingBombs = [];
+var shieldPowerups = [];
+var hearts = [];
+var scoreTxt;
+var heartsTxt;
+var playerHealth = 3;
+var gameSpeed = 1;
+var spawnTimer = 0;
+var bombSpawnChance = 0.15;
+var shieldSpawnChance = 0.05;
+var lanePositions = [];
+var laneWidth = 2048 / 7;
+// Calculate lane positions
+for (var i = 0; i < 7; i++) {
+	lanePositions[i] = i * laneWidth + laneWidth / 2;
+}
+// Create staircases
+for (var i = 0; i < 7; i++) {
+	var staircase = game.addChild(LK.getAsset('staircase', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	}));
+	staircase.x = lanePositions[i];
+	staircase.y = 2732 - 100;
+	staircases.push(staircase);
+}
+// Create player
+player = game.addChild(new Player());
+player.x = lanePositions[player.currentLane];
+player.y = 2732 - 150;
+// Create UI
+scoreTxt = new Text2('Score: 0', {
+	size: 80,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreTxt);
+heartsTxt = new Text2('♥ ♥ ♥', {
+	size: 80,
+	fill: 0xFF0000
+});
+heartsTxt.anchor.set(1, 0);
+LK.gui.topRight.addChild(heartsTxt);
+function updateHeartsDisplay() {
+	var heartsText = '';
+	for (var i = 0; i < playerHealth; i++) {
+		heartsText += '♥ ';
+	}
+	heartsTxt.setText(heartsText);
+}
+function spawnFallingObject() {
+	var lane = Math.floor(Math.random() * 7);
+	var x = lanePositions[lane];
+	if (Math.random() < shieldSpawnChance) {
+		// Spawn shield powerup
+		var shield = new ShieldPowerup(lane);
+		shield.x = x;
+		shield.y = -50;
+		shieldPowerups.push(shield);
+		game.addChild(shield);
+	} else if (Math.random() < bombSpawnChance) {
+		// Spawn bomb
+		var bomb = new FallingBomb(lane);
+		bomb.x = x;
+		bomb.y = -50;
+		fallingBombs.push(bomb);
+		game.addChild(bomb);
+	} else {
+		// Spawn note
+		var noteType = Math.floor(Math.random() * 7) + 1;
+		var note = new FallingNote(noteType, lane);
+		note.x = x;
+		note.y = -50;
+		fallingNotes.push(note);
+		game.addChild(note);
+	}
+}
+function movePlayer(targetLane) {
+	if (targetLane >= 0 && targetLane < 7) {
+		player.currentLane = targetLane;
+		tween(player, {
+			x: lanePositions[targetLane]
+		}, {
+			duration: 200,
+			easing: tween.easeOut
+		});
+	}
+}
+game.down = function (x, y, obj) {
+	var clickedLane = Math.floor(x / laneWidth);
+	movePlayer(clickedLane);
+};
+game.update = function () {
+	// Spawn falling objects
+	spawnTimer++;
+	if (spawnTimer >= Math.max(30 - Math.floor(LK.ticks / 600), 15)) {
+		spawnFallingObject();
+		spawnTimer = 0;
+	}
+	// Update and check falling notes
+	for (var i = fallingNotes.length - 1; i >= 0; i--) {
+		var note = fallingNotes[i];
+		if (note.lastY === undefined) note.lastY = note.y;
+		// Check if note went off screen
+		if (note.lastY < 2732 && note.y >= 2732) {
+			note.destroy();
+			fallingNotes.splice(i, 1);
+			continue;
+		}
+		// Check collision with player
+		if (note.lane === player.currentLane && note.intersects(player)) {
+			LK.setScore(LK.getScore() + 10);
+			scoreTxt.setText('Score: ' + LK.getScore());
+			LK.getSound('catch').play();
+			note.destroy();
+			fallingNotes.splice(i, 1);
+			continue;
+		}
+		note.lastY = note.y;
+	}
+	// Update and check falling bombs
+	for (var i = fallingBombs.length - 1; i >= 0; i--) {
+		var bomb = fallingBombs[i];
+		if (bomb.lastY === undefined) bomb.lastY = bomb.y;
+		// Check if bomb went off screen
+		if (bomb.lastY < 2732 && bomb.y >= 2732) {
+			bomb.destroy();
+			fallingBombs.splice(i, 1);
+			continue;
+		}
+		// Check collision with player
+		if (bomb.lane === player.currentLane && bomb.intersects(player) && !player.shieldActive) {
+			playerHealth--;
+			updateHeartsDisplay();
+			LK.getSound('bomb_hit').play();
+			LK.effects.flashScreen(0xff0000, 500);
+			bomb.destroy();
+			fallingBombs.splice(i, 1);
+			if (playerHealth <= 0) {
+				LK.showGameOver();
+			}
+			continue;
+		}
+		bomb.lastY = bomb.y;
+	}
+	// Update and check shield powerups
+	for (var i = shieldPowerups.length - 1; i >= 0; i--) {
+		var shield = shieldPowerups[i];
+		if (shield.lastY === undefined) shield.lastY = shield.y;
+		// Check if shield went off screen
+		if (shield.lastY < 2732 && shield.y >= 2732) {
+			shield.destroy();
+			shieldPowerups.splice(i, 1);
+			continue;
+		}
+		// Check collision with player
+		if (shield.lane === player.currentLane && shield.intersects(player)) {
+			player.activateShield();
+			LK.getSound('shield_pickup').play();
+			shield.destroy();
+			shieldPowerups.splice(i, 1);
+			continue;
+		}
+		shield.lastY = shield.y;
+	}
+	// Gradually increase game speed
+	if (LK.ticks % 1800 === 0) {
+		// Every 30 seconds
+		gameSpeed += 0.1;
+		for (var i = 0; i < fallingNotes.length; i++) {
+			fallingNotes[i].speed = 8 * gameSpeed;
+		}
+		for (var i = 0; i < fallingBombs.length; i++) {
+			fallingBombs[i].speed = 8 * gameSpeed;
+		}
+		for (var i = 0; i < shieldPowerups.length; i++) {
+			shieldPowerups[i].speed = 6 * gameSpeed;
+		}
+	}
+};
\ No newline at end of file