===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,440 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+var facekit = LK.import("@upit/facekit.v1");
+
+/**** 
+* Classes
+****/ 
+// Ball class: the fixed shooter at bottom left
+var Ball = Container.expand(function () {
+	var self = Container.call(this);
+	var ballAsset = self.attachAsset('ball', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		width: BALL_SIZE,
+		height: BALL_SIZE,
+		color: 0xffffff,
+		shape: 'ellipse'
+	});
+	return self;
+});
+// Bullet class: fired from ball towards crosshair
+var Bullet = Container.expand(function () {
+	var self = Container.call(this);
+	var bulletAsset = self.attachAsset('bullet', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		width: BULLET_SIZE,
+		height: BULLET_SIZE,
+		color: 0x00e6e6,
+		shape: 'ellipse'
+	});
+	self.vx = 0;
+	self.vy = 0;
+	self.update = function () {
+		self.x += self.vx;
+		self.y += self.vy;
+	};
+	return self;
+});
+// Crosshair class: follows facekit position
+var Crosshair = Container.expand(function () {
+	var self = Container.call(this);
+	var crossAsset = self.attachAsset('crosshair', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		width: CROSS_SIZE,
+		height: CROSS_SIZE,
+		color: 0xff0000,
+		shape: 'ellipse'
+	});
+	return self;
+});
+// Note class: falling note
+var Note = Container.expand(function () {
+	var self = Container.call(this);
+	// Randomly pick a color for the note
+	var color = NOTE_COLORS[Math.floor(Math.random() * NOTE_COLORS.length)];
+	var noteAsset = self.attachAsset('note', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		width: NOTE_WIDTH,
+		height: NOTE_HEIGHT,
+		color: color,
+		shape: 'ellipse'
+	});
+	self.column = 0; // which column this note is in
+	self.speed = noteFallSpeed; // will be set on spawn
+	self.hit = false; // has this note been hit
+	self.update = function () {
+		self.y += self.speed;
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x181a20
+});
+
+/**** 
+* Game Code
+****/ 
+// Note: All note assets will be ellipses with different colors for variety
+// --- Constants ---
+var NOTE_COLORS = [0xffe066, 0x66b3ff, 0xff66a3, 0x7cff66, 0xff8c66];
+var GAME_W = 2048;
+var GAME_H = 2732;
+var BALL_SIZE = 120;
+var NOTE_WIDTH = 160;
+var NOTE_HEIGHT = 90;
+var CROSS_SIZE = 90;
+var BULLET_SIZE = 60;
+var NOTE_COLS = 5;
+var NOTE_MARGIN = 60;
+var NOTE_AREA_W = GAME_W - 2 * NOTE_MARGIN;
+var NOTE_COL_W = NOTE_AREA_W / NOTE_COLS;
+var NOTE_START_Y = -NOTE_HEIGHT;
+var BALL_X = 180;
+var BALL_Y = GAME_H - 220;
+var CROSS_MIN_X = 200;
+var CROSS_MAX_X = GAME_W - 200;
+var CROSS_MIN_Y = 200;
+var CROSS_MAX_Y = GAME_H - 400;
+var BULLET_SPEED = 48; // px per frame
+// --- Game State ---
+var notes = [];
+var bullets = [];
+var crosshair = null;
+var ball = null;
+var scoreTxt = null;
+var tipTxt = null;
+var lastNoteSpawnTick = 0;
+var noteFallSpeed = 12; // will be set by difficulty
+var noteSpawnInterval = 60; // ticks between notes, will be set by difficulty
+var difficulty = null; // 'slow', 'normal', 'fast'
+var gameStarted = false;
+var canShoot = true;
+var lastScore = 0;
+var musicTracks = [{
+	id: 'music1',
+	name: 'Parça 1'
+}, {
+	id: 'music2',
+	name: 'Parça 2'
+}, {
+	id: 'music3',
+	name: 'Parça 3'
+}];
+var currentMusic = null;
+// --- Difficulty Presets ---
+var DIFFICULTY_PRESETS = {
+	'slow': {
+		noteFallSpeed: 10,
+		noteSpawnInterval: 80
+	},
+	'normal': {
+		noteFallSpeed: 14,
+		noteSpawnInterval: 60
+	},
+	'fast': {
+		noteFallSpeed: 20,
+		noteSpawnInterval: 40
+	}
+};
+// --- UI: Difficulty Selection ---
+var diffBtns = [];
+function showDifficultyMenu() {
+	var btnLabels = [{
+		key: 'slow',
+		label: 'Yavaş'
+	}, {
+		key: 'normal',
+		label: 'Normal'
+	}, {
+		key: 'fast',
+		label: 'Hızlı'
+	}];
+	var btnW = 500,
+		btnH = 180,
+		btnGap = 60;
+	var startY = GAME_H / 2 - (btnLabels.length * btnH + (btnLabels.length - 1) * btnGap) / 2;
+	for (var i = 0; i < btnLabels.length; i++) {
+		var btn = new Container();
+		var bg = btn.attachAsset('btnbg', {
+			anchorX: 0.5,
+			anchorY: 0.5,
+			width: btnW,
+			height: btnH,
+			color: 0x222a38,
+			shape: 'box'
+		});
+		var txt = new Text2(btnLabels[i].label, {
+			size: 90,
+			fill: "#fff"
+		});
+		txt.anchor.set(0.5, 0.5);
+		txt.x = 0;
+		txt.y = 0;
+		btn.addChild(txt);
+		btn.x = GAME_W / 2;
+		btn.y = startY + i * (btnH + btnGap);
+		btn.difficulty = btnLabels[i].key;
+		btn.down = function (x, y, obj) {
+			startGame(this.difficulty);
+		};
+		game.addChild(btn);
+		diffBtns.push(btn);
+	}
+	// Show tip
+	if (!tipTxt) {
+		tipTxt = new Text2("Başını hareket ettir, notalara dokun ve ateş et!", {
+			size: 70,
+			fill: 0xFFE066
+		});
+		tipTxt.anchor.set(0.5, 0);
+	}
+	tipTxt.x = GAME_W / 2;
+	tipTxt.y = 180;
+	game.addChild(tipTxt);
+}
+// Remove difficulty menu
+function hideDifficultyMenu() {
+	for (var i = 0; i < diffBtns.length; i++) {
+		diffBtns[i].destroy();
+	}
+	diffBtns = [];
+	if (tipTxt) {
+		tipTxt.destroy();
+		tipTxt = null;
+	}
+}
+// --- Start Game ---
+function startGame(diffKey) {
+	difficulty = diffKey;
+	noteFallSpeed = DIFFICULTY_PRESETS[diffKey].noteFallSpeed;
+	noteSpawnInterval = DIFFICULTY_PRESETS[diffKey].noteSpawnInterval;
+	gameStarted = true;
+	hideDifficultyMenu();
+	LK.setScore(0);
+	lastScore = 0;
+	notes = [];
+	bullets = [];
+	// Pick a random music
+	currentMusic = musicTracks[Math.floor(Math.random() * musicTracks.length)];
+	LK.playMusic(currentMusic.id);
+	// Ball
+	ball = new Ball();
+	ball.x = BALL_X;
+	ball.y = BALL_Y;
+	game.addChild(ball);
+	// Crosshair
+	crosshair = new Crosshair();
+	crosshair.x = BALL_X + 400;
+	crosshair.y = BALL_Y - 400;
+	game.addChild(crosshair);
+	// Score
+	if (!scoreTxt) {
+		scoreTxt = new Text2('0', {
+			size: 120,
+			fill: "#fff"
+		});
+		scoreTxt.anchor.set(0.5, 0);
+		LK.gui.top.addChild(scoreTxt);
+	}
+	scoreTxt.setText(0);
+	// Show tip for a few seconds
+	if (!tipTxt) {
+		tipTxt = new Text2("Başını hareket ettir, notalara dokun ve ateş et!", {
+			size: 70,
+			fill: 0xFFE066
+		});
+		tipTxt.anchor.set(0.5, 0);
+	}
+	tipTxt.x = GAME_W / 2;
+	tipTxt.y = 180;
+	game.addChild(tipTxt);
+	LK.setTimeout(function () {
+		if (tipTxt) {
+			tipTxt.destroy();
+			tipTxt = null;
+		}
+	}, 3000);
+}
+// --- End Game ---
+function endGame(win) {
+	// Clean up
+	for (var i = 0; i < notes.length; i++) notes[i].destroy();
+	notes = [];
+	for (var i = 0; i < bullets.length; i++) bullets[i].destroy();
+	bullets = [];
+	if (ball) {
+		ball.destroy();
+		ball = null;
+	}
+	if (crosshair) {
+		crosshair.destroy();
+		crosshair = null;
+	}
+	gameStarted = false;
+	LK.stopMusic();
+	if (win) {
+		LK.showYouWin();
+	} else {
+		LK.showGameOver();
+	}
+}
+// --- Note Spawning ---
+function spawnNote() {
+	var note = new Note();
+	// Pick a random column
+	var col = Math.floor(Math.random() * NOTE_COLS);
+	note.column = col;
+	note.x = NOTE_MARGIN + NOTE_COL_W / 2 + col * NOTE_COL_W;
+	note.y = NOTE_START_Y;
+	note.speed = noteFallSpeed;
+	notes.push(note);
+	game.addChild(note);
+}
+// --- Difficulty Increase ---
+function maybeIncreaseDifficulty() {
+	var score = LK.getScore();
+	if (score > 0 && score % 10 === 0 && score !== lastScore) {
+		// Increase speed and spawn rate
+		noteFallSpeed += 2;
+		if (noteSpawnInterval > 20) noteSpawnInterval -= 6;
+		lastScore = score;
+	}
+}
+// --- Facekit Crosshair Update ---
+function updateCrosshair() {
+	if (!crosshair) return;
+	// Use facekit.noseTip or facekit.mouthCenter for aiming
+	var fx = facekit.noseTip ? facekit.noseTip.x : facekit.mouthCenter ? facekit.mouthCenter.x : GAME_W / 2;
+	var fy = facekit.noseTip ? facekit.noseTip.y : facekit.mouthCenter ? facekit.mouthCenter.y : GAME_H / 2;
+	// Clamp to play area
+	if (fx < CROSS_MIN_X) fx = CROSS_MIN_X;
+	if (fx > CROSS_MAX_X) fx = CROSS_MAX_X;
+	if (fy < CROSS_MIN_Y) fy = CROSS_MIN_Y;
+	if (fy > CROSS_MAX_Y) fy = CROSS_MAX_Y;
+	crosshair.x = fx;
+	crosshair.y = fy;
+}
+// --- Fire Bullet ---
+function fireBullet() {
+	if (!canShoot || !gameStarted) return;
+	canShoot = false;
+	// Find if crosshair is over a note
+	var hitNote = null;
+	for (var i = 0; i < notes.length; i++) {
+		var n = notes[i];
+		if (!n.hit && crosshair && crosshair.intersects(n)) {
+			hitNote = n;
+			break;
+		}
+	}
+	// Fire bullet towards crosshair
+	var b = new Bullet();
+	b.x = ball.x;
+	b.y = ball.y;
+	// Direction vector
+	var dx = crosshair.x - ball.x;
+	var dy = crosshair.y - ball.y;
+	var len = Math.sqrt(dx * dx + dy * dy);
+	if (len === 0) {
+		dx = 0;
+		dy = -1;
+		len = 1;
+	}
+	b.vx = BULLET_SPEED * dx / len;
+	b.vy = BULLET_SPEED * dy / len;
+	bullets.push(b);
+	game.addChild(b);
+	// If hitNote, mark as hit (so only one bullet per note)
+	if (hitNote) {
+		hitNote.hit = true;
+	}
+	// Play note sound (simulate: play a sound per note column)
+	var soundId = 'note' + (hitNote ? hitNote.column : Math.floor(Math.random() * NOTE_COLS));
+	LK.getSound(soundId).play();
+	// Allow next shot after short delay
+	LK.setTimeout(function () {
+		canShoot = true;
+	}, 250);
+}
+// --- Touch Handler: tap to fire if crosshair is over a note
+game.down = function (x, y, obj) {
+	if (!gameStarted) return;
+	fireBullet();
+};
+// --- Main Game Loop ---
+game.update = function () {
+	if (!gameStarted) return;
+	// Update crosshair position from facekit
+	updateCrosshair();
+	// Spawn notes
+	if (LK.ticks - lastNoteSpawnTick >= noteSpawnInterval) {
+		spawnNote();
+		lastNoteSpawnTick = LK.ticks;
+	}
+	// Update notes
+	for (var i = notes.length - 1; i >= 0; i--) {
+		var n = notes[i];
+		n.update();
+		// If note is hit and bullet will reach it, handled below
+		// If note falls below screen, game over
+		if (n.y > GAME_H + NOTE_HEIGHT / 2) {
+			endGame(false);
+			return;
+		}
+	}
+	// Update bullets
+	for (var i = bullets.length - 1; i >= 0; i--) {
+		var b = bullets[i];
+		b.update();
+		// Remove bullet if out of bounds
+		if (b.x < -100 || b.x > GAME_W + 100 || b.y < -100 || b.y > GAME_H + 100) {
+			b.destroy();
+			bullets.splice(i, 1);
+			continue;
+		}
+		// Check collision with notes
+		for (var j = notes.length - 1; j >= 0; j--) {
+			var n = notes[j];
+			if (n.hit && b.intersects(n)) {
+				// Hit!
+				LK.setScore(LK.getScore() + 1);
+				scoreTxt.setText(LK.getScore());
+				// Remove note and bullet
+				n.destroy();
+				notes.splice(j, 1);
+				b.destroy();
+				bullets.splice(i, 1);
+				// Difficulty up
+				maybeIncreaseDifficulty();
+				// Win condition: 50 points
+				if (LK.getScore() >= 50) {
+					endGame(true);
+					return;
+				}
+				break;
+			}
+		}
+	}
+};
+// --- Show Difficulty Menu on Start ---
+showDifficultyMenu();
+/**** 
+* Asset Initialization (for static analysis)
+****/ 
+// Notes (5 columns, 5 colors)
+for (var i = 0; i < NOTE_COLS; i++) {}
+// Ball
+// Crosshair
+// Bullet
+// Button background
+// Music tracks
\ No newline at end of file