/**** 
* Classes
****/ 
var Bird = Container.expand(function () {
	var self = Container.call(this);
	var birdGraphics = self.attachAsset('bird', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.xSpeed = 10.9375;
	self.ySpeed = -20;
	self.gravity = 1;
	self.lift = -15;
	self.flap = function () {
		self.ySpeed = self.lift * 1.5;
		LK.getSound('flap').play();
	};
	self._update_migrated = function () {
		if (game.isMouseDown) {
			self.ySpeed += self.gravity / 3;
		} else {
			self.ySpeed += self.gravity;
		}
		self.y += self.ySpeed;
		self.x += self.xSpeed;
		if (self.y <= 0 || self.y >= 2732) {
			self.speed = -self.speed;
		}
		var targetRotation = Math.atan2(self.ySpeed, self.xSpeed * self.scale.x) / 2;
		birdGraphics.rotation += (targetRotation - birdGraphics.rotation) / 10;
	};
	self.flip = function () {
		self.scale.x *= -1;
	};
});
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obstacleShadow = self.attachAsset('obstacleShadow', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	obstacleShadow.rotation = Math.PI / 4;
	var obstacleShadow2 = self.attachAsset('obstacleShadow2', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	obstacleShadow2.rotation = Math.PI / 4;
	obstacleShadow2.y = -7;
	var obstacleGraphics = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	obstacleGraphics.rotation = Math.PI / 4;
	self.speed = 5;
	self._move_migrated = function (speed) {
		self.y += speed;
	};
});
var Wall = Container.expand(function () {
	var self = Container.call(this);
	var wallGraphics = self.attachAsset('wall', {
		anchorX: 0.5,
		anchorY: 0.5
	});
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000
});

/**** 
* Game Code
****/ 
// --- CODE PART: ONLY start screen ---
var code = function code() {
	// This function is only available on the start screen
	// You can add any code here that should only run on the start screen
};
// --- END CODE PART ---
var tutorialTextWhite = new Text2('Tap to Flap\nHold to Float', {
	size: 150,
	fill: '#ffffff',
	font: 'Impact',
	align: 'center'
});
tutorialTextWhite.anchor.set(.5, 1);
tutorialTextWhite.x = -4;
tutorialTextWhite.y = -62;
LK.gui.bottom.addChild(tutorialTextWhite);
var tutorialText = new Text2('Tap to Flap\nHold to Float', {
	size: 150,
	fill: '#3a84f7',
	font: 'Impact',
	dropShadow: true,
	dropShadowColor: '#222a9a',
	dropShadowBlur: 5,
	dropShadowDistance: 7,
	dropShadowAngle: 0,
	align: 'center'
});
tutorialText.anchor.set(.5, 1);
tutorialText.y = -50;
LK.gui.bottom.addChild(tutorialText);
game.score = 0;
game.obstacleSpeed = 5;
game.obstacleSpeedIncrease = 0.005;
game.checkObstacleCollision = function (obstacles) {
	for (var i = 0; i < obstacles.length; i++) {
		obstacles[i]._move_migrated();
		var dist = Math.sqrt(Math.pow(bird.x - obstacles[i].x, 2) + Math.pow(bird.y - obstacles[i].y, 2));
		if (dist < 280) {
			LK.setScore(game.score);
			LK.getSound('gameOverJingle').play();
			LK.showGameOver();
		}
	}
};
game.setBackgroundColor(0xadd8e6);
var scoreText = new Text2('0', {
	size: 150,
	fill: '#3a84f7',
	font: 'Impact',
	dropShadow: true,
	dropShadowColor: '#222a9a',
	dropShadowBlur: 5,
	dropShadowDistance: 7,
	dropShadowAngle: 0
});
scoreText.anchor.set(.5, 0);
LK.gui.top.addChild(scoreText);
var scoreText2 = new Text2('0', {
	size: 150,
	fill: '#ffffff',
	font: 'Impact'
});
scoreText2.anchor.set(.5, 0);
scoreText2.x = -4;
scoreText2.y = -5;
LK.gui.top.addChild(scoreText2);
LK.gui.top.addChild(scoreText);
var bird = game.addChild(new Bird());
var leftWall = game.addChild(new Wall());
leftWall.x = 0;
leftWall.y = 1366;
var rightWall = game.addChild(new Wall());
rightWall.x = 2048;
rightWall.y = 1366;
var leftObstacles = [],
	rightObstacles = [];
var obstacleSpawnRandomness = 120;
var obstacleSpawnRandomnessDecrease = 0.025 * (2 / 3);
var obstacleSpawnY = -500;
var leftObstacleSpawnTime = Math.floor(Math.random() * obstacleSpawnRandomness) + obstacleSpawnRandomness;
var rightObstacleSpawnTime = Math.floor(Math.random() * obstacleSpawnRandomness) + obstacleSpawnRandomness;
bird.x = 1024;
bird.y = 1366;
game.isMouseDown = false;
game.down = function (x, y, obj) {
	bird.flap();
	game.isMouseDown = true;
};
game.up = function (x, y, obj) {
	game.isMouseDown = false;
};
game.update = function () {
	bird._update_migrated();
	if (game.score > 2) {
		tutorialText.y += 5;
		tutorialTextWhite.y += 5;
	}
	scoreText.setText(game.score);
	scoreText2.setText(game.score);
	game.obstacleSpeed += game.obstacleSpeedIncrease;
	obstacleSpawnRandomness -= obstacleSpawnRandomnessDecrease;
	if (obstacleSpawnRandomness < 20) {
		obstacleSpawnRandomness = 20;
	}
	if (LK.ticks >= leftObstacleSpawnTime) {
		var newObstacle = game.addChildAt(new Obstacle(), 0);
		newObstacle.x = 0;
		newObstacle.y = obstacleSpawnY;
		leftObstacles.push(newObstacle);
		leftObstacleSpawnTime += Math.floor(Math.random() * obstacleSpawnRandomness) + obstacleSpawnRandomness;
	}
	if (LK.ticks >= rightObstacleSpawnTime) {
		var newObstacle = game.addChildAt(new Obstacle(), 0);
		newObstacle.x = 2048;
		newObstacle.y = -newObstacle.height;
		rightObstacles.push(newObstacle);
		rightObstacleSpawnTime += Math.floor(Math.random() * obstacleSpawnRandomness) + obstacleSpawnRandomness;
	}
	if (bird.intersects(leftWall) && bird.xSpeed < 0 || bird.intersects(rightWall) && bird.xSpeed > 0) {
		bird.xSpeed = -bird.xSpeed;
		bird.flip();
		game.score++;
		LK.setScore(game.score);
		LK.getSound('bounce').play();
	}
	for (var i = leftObstacles.length - 1; i >= 0; i--) {
		leftObstacles[i]._move_migrated(game.obstacleSpeed);
		if (leftObstacles[i].y > 3232) {
			leftObstacles[i].destroy();
			leftObstacles.splice(i, 1);
		}
	}
	for (var i = rightObstacles.length - 1; i >= 0; i--) {
		rightObstacles[i]._move_migrated(game.obstacleSpeed);
		if (rightObstacles[i].y > 3232) {
			rightObstacles[i].destroy();
			rightObstacles.splice(i, 1);
		}
	}
	game.checkObstacleCollision(leftObstacles);
	game.checkObstacleCollision(rightObstacles);
	if (bird.y < 0 || bird.y > 2732) {
		LK.setScore(game.score);
		LK.getSound('gameOverJingle').play();
		LK.showGameOver();
	}
};
// "obb" code part: gives 999 points when called
function obb() {
	game.score = 999;
	LK.setScore(game.score);
	scoreText.setText(game.score);
	scoreText2.setText(game.score);
}

===================================================================
--- original.js
+++ change.js
@@ -73,97 +73,14 @@
 
 /**** 
 * Game Code
 ****/ 
-// --- CODE ENTRY SCREEN BEGIN ---
-var codeScreenContainer = new Container();
-var codeScreenBg = LK.getAsset('obstacle', {
-	anchorX: 0.5,
-	anchorY: 0.5
-});
-codeScreenBg.width = 800;
-codeScreenBg.height = 600;
-codeScreenBg.x = 1024;
-codeScreenBg.y = 1366;
-codeScreenContainer.addChild(codeScreenBg);
-var codePrompt = new Text2('Enter Code:', {
-	size: 80,
-	fill: '#ffffff',
-	font: 'Impact',
-	align: 'center'
-});
-codePrompt.anchor.set(0.5, 1);
-codePrompt.x = 1024;
-codePrompt.y = 1200;
-codeScreenContainer.addChild(codePrompt);
-var codeInput = new Text2('', {
-	size: 80,
-	fill: '#3a84f7',
-	font: 'Impact',
-	align: 'center'
-});
-codeInput.anchor.set(0.5, 0.5);
-codeInput.x = 1024;
-codeInput.y = 1366;
-codeScreenContainer.addChild(codeInput);
-var codeError = new Text2('', {
-	size: 80,
-	fill: '#ff0000',
-	font: 'Impact',
-	align: 'center'
-});
-codeError.anchor.set(0.5, 0);
-codeError.x = 1024;
-codeError.y = 1500;
-codeScreenContainer.addChild(codeError);
-var codeScreenActive = true;
-var enteredCode = '';
-game.addChild(codeScreenContainer);
-// Hide code entry screen when any LK overlay/article is shown
-LK.on('article', function () {
-	codeScreenActive = false;
-	codeScreenContainer.visible = false;
-});
-// Also hide code entry screen on game reset (when a new game is created)
-LK.on('game', function () {
-	codeScreenActive = false;
-	codeScreenContainer.visible = false;
-});
-// Touch anywhere to "type" a code digit (simulate keypad: 0-9, O, B)
-game.down = function (x, y, obj) {
-	if (codeScreenActive) {
-		// Simulate a keypad: tap left/right to cycle chars, tap center to confirm
-		// For simplicity, tap left 1/3 = O, center 1/3 = B, right 1/3 = 0-9 cycling
-		if (y < 1200 || y > 1532) return; // Only respond in code box area
-		if (x < 2048 / 3) {
-			enteredCode += 'O';
-		} else if (x > 2048 * 2 / 3) {
-			// Cycle through 0-9
-			var nextDigit = ((enteredCode.match(/[0-9]$/) ? parseInt(enteredCode.slice(-1)) : -1) + 1) % 10;
-			enteredCode += nextDigit.toString();
-		} else {
-			enteredCode += 'B';
-		}
-		if (enteredCode.length > 8) enteredCode = enteredCode.slice(0, 8);
-		codeInput.setText(enteredCode);
-		// Check for code
-		if (enteredCode.toUpperCase() === 'OBB') {
-			codeScreenActive = false;
-			codeScreenContainer.visible = false;
-			codeError.setText('');
-			obb();
-		} else if (enteredCode.length >= 3) {
-			codeError.setText('Invalid code');
-		} else {
-			codeError.setText('');
-		}
-		return;
-	}
-	// --- original game.down logic below ---
-	bird.flap();
-	game.isMouseDown = true;
+// --- CODE PART: ONLY start screen ---
+var code = function code() {
+	// This function is only available on the start screen
+	// You can add any code here that should only run on the start screen
 };
-// --- CODE ENTRY SCREEN END ---
+// --- END CODE PART ---
 var tutorialTextWhite = new Text2('Tap to Flap\nHold to Float', {
 	size: 150,
 	fill: '#ffffff',
 	font: 'Impact',