/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");

/**** 
* Classes
****/ 
var Ball = Container.expand(function (value) {
	var self = Container.call(this);
	self.value = value || 2;
	self.velocityX = 0;
	self.velocityY = 0;
	self.gravity = 0.8;
	self.bounce = 0.4;
	self.friction = 0.98;
	self.radius = 60;
	self.isStatic = false;
	self.mergeTimer = 0;
	self.hasBeenMerged = false;
	var ballAsset = self.attachAsset('ball' + self.value, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var valueText = new Text2(self.value.toString(), {
		size: 42,
		fill: 0xFFFFFF
	});
	valueText.anchor.set(0.5, 0.5);
	self.addChild(valueText);
	self.update = function () {
		if (self.hasBeenMerged) return;
		if (self.mergeTimer > 0) {
			self.mergeTimer--;
			return;
		}
		// Skip all physics processing for static balls to prevent vibration
		if (self.isStatic) {
			return;
		}
		// Apply physics only if not static
		if (!self.isStatic) {
			// Store previous position for continuous collision detection
			var prevX = self.x;
			var prevY = self.y;
			// Apply gravity
			self.velocityY += self.gravity;
			// Calculate intended new position
			var newX = self.x + self.velocityX;
			var newY = self.y + self.velocityY;
			// Continuous collision detection - check path from current to intended position
			var stepCount = Math.max(1, Math.ceil(Math.abs(self.velocityX) + Math.abs(self.velocityY)) / (self.radius * 0.5));
			var stepX = (newX - self.x) / stepCount;
			var stepY = (newY - self.y) / stepCount;
			var collisionOccurred = false;
			// Check each step along the movement path
			for (var step = 1; step <= stepCount && !collisionOccurred; step++) {
				var testX = self.x + stepX * step;
				var testY = self.y + stepY * step;
				// Test collision with other balls
				for (var i = 0; i < balls.length; i++) {
					var otherBall = balls[i];
					if (otherBall === self || otherBall.hasBeenMerged || otherBall.mergeTimer > 0) continue;
					var dx = otherBall.x - testX;
					var dy = otherBall.y - testY;
					var distance = Math.sqrt(dx * dx + dy * dy);
					var minDistance = self.radius + otherBall.radius;
					if (distance < minDistance) {
						// Collision detected - stop at safe position
						var safeDistance = minDistance + 2; // Add small buffer
						if (distance > 0) {
							var normalX = dx / distance;
							var normalY = dy / distance;
							self.x = otherBall.x - normalX * safeDistance;
							self.y = otherBall.y - normalY * safeDistance;
							// Check for merge first - increased sensitivity for same-numbered balls
							var mergeDistance = self.value === otherBall.value ? minDistance * 1.4 : minDistance;
							if (self.value === otherBall.value && self.mergeTimer === 0 && otherBall.mergeTimer === 0 && distance < mergeDistance) {
								var newValue = self.value * 2;
								if (newValue <= 2048) {
									var newBall = new Ball(newValue);
									newBall.x = (self.x + otherBall.x) / 2;
									newBall.y = (self.y + otherBall.y) / 2;
									newBall.velocityX = (self.velocityX + otherBall.velocityX) / 2;
									newBall.velocityY = (self.velocityY + otherBall.velocityY) / 2;
									newBall.mergeTimer = 10;
									// Add merge animation - scale and pulse effect
									newBall.scaleX = 0.2; // Start very small
									newBall.scaleY = 0.2; // Start very small
									newBall.alpha = 0.7; // Start semi-transparent
									tween(newBall, {
										scaleX: 1.3,
										scaleY: 1.3,
										alpha: 1
									}, {
										duration: 200,
										easing: tween.easeOut,
										onFinish: function onFinish() {
											// Pulse back to normal size
											tween(newBall, {
												scaleX: 1,
												scaleY: 1
											}, {
												duration: 150,
												easing: tween.easeInOut
											});
										}
									});
									// Animate merging balls with shrink and fade
									tween(self, {
										scaleX: 0,
										scaleY: 0,
										alpha: 0
									}, {
										duration: 250,
										easing: tween.easeIn
									});
									tween(otherBall, {
										scaleX: 0,
										scaleY: 0,
										alpha: 0
									}, {
										duration: 250,
										easing: tween.easeIn
									});
									balls.push(newBall);
									gameArea.addChild(newBall);
									// Mark for removal
									self.hasBeenMerged = true;
									otherBall.hasBeenMerged = true;
									LK.getSound('merge').play();
									LK.setScore(LK.getScore() + newValue);
									scoreText.setText(LK.getScore());
									// Check win condition
									if (newValue === 2048) {
										LK.showYouWin();
									}
									return;
								}
							}
							// Enhanced collision response for better stacking
							var relativeVelX = self.velocityX - otherBall.velocityX;
							var relativeVelY = self.velocityY - otherBall.velocityY;
							var relativeSpeed = relativeVelX * normalX + relativeVelY * normalY;
							if (relativeSpeed > 0) {
								// Calculate mass-based collision response (assume equal mass)
								var restitution = 0.3; // Lower restitution for more stable stacking
								var impulse = (1 + restitution) * relativeSpeed * 0.5;
								self.velocityX -= impulse * normalX;
								self.velocityY -= impulse * normalY;
								otherBall.velocityX += impulse * normalX;
								otherBall.velocityY += impulse * normalY;
								// Apply different friction based on collision angle
								var collisionAngle = Math.atan2(normalY, normalX);
								var frictionFactor = Math.abs(Math.sin(collisionAngle)) * 0.8 + 0.2;
								self.velocityX *= self.friction * frictionFactor;
								self.velocityY *= self.friction * frictionFactor;
								otherBall.velocityX *= otherBall.friction * frictionFactor;
								otherBall.velocityY *= otherBall.friction * frictionFactor;
								// Enhanced static detection for stacking
								if (Math.abs(self.velocityY) < 0.5 && Math.abs(self.velocityX) < 0.5) {
									// Check if ball is supported (has another ball below it or touching ground)
									var supportFound = false;
									var localBottom = gameAreaHeight - 20;
									// Check ground support
									if (self.y + self.radius >= localBottom - 5) {
										supportFound = true;
									} else {
										// Check support from other balls
										for (var j = 0; j < balls.length; j++) {
											var supportBall = balls[j];
											if (supportBall === self || supportBall.hasBeenMerged) continue;
											var supportDx = supportBall.x - self.x;
											var supportDy = supportBall.y - self.y;
											var supportDistance = Math.sqrt(supportDx * supportDx + supportDy * supportDy);
											// Check if this ball is resting on another ball (other ball is below)
											if (supportDistance < (self.radius + supportBall.radius) * 1.1 && supportDy > 0) {
												supportFound = true;
												break;
											}
										}
									}
									if (supportFound) {
										self.isStatic = true;
										self.velocityX = 0;
										self.velocityY = 0;
									}
								}
							}
						}
						collisionOccurred = true;
						break;
					}
				}
			}
			// If no collision occurred, move to intended position
			if (!collisionOccurred) {
				self.x = newX;
				self.y = newY;
			}
			// Boundary collisions after position update
			var localWidth = gameAreaRight - gameAreaLeft;
			var localBottom = gameAreaHeight - 20; // gameAreaHeight minus bottom wall height
			// Ground collision
			if (self.y + self.radius > localBottom) {
				self.y = localBottom - self.radius;
				self.velocityY *= -self.bounce;
				self.velocityX *= self.friction;
				if (Math.abs(self.velocityY) < 1) {
					self.velocityY = 0;
					self.isStatic = true;
				}
			}
			// Side walls collision
			if (self.x - self.radius < 0) {
				self.x = self.radius;
				self.velocityX *= -self.bounce;
			}
			if (self.x + self.radius > localWidth) {
				self.x = localWidth - self.radius;
				self.velocityX *= -self.bounce;
			}
		}
		// Enhanced merge detection pass - check for nearby same-numbered balls
		// Skip if this ball is static to prevent vibration
		if (!self.isStatic) {
			for (var i = 0; i < balls.length; i++) {
				var otherBall = balls[i];
				if (otherBall === self || otherBall.hasBeenMerged || otherBall.mergeTimer > 0 || self.mergeTimer > 0) continue;
				var dx = otherBall.x - self.x;
				var dy = otherBall.y - self.y;
				var distance = Math.sqrt(dx * dx + dy * dy);
				var minDistance = self.radius + otherBall.radius;
				// Enhanced merge sensitivity for same-numbered balls
				if (self.value === otherBall.value) {
					var mergeTriggerDistance = minDistance * 1.3; // 30% more sensitive
					if (distance < mergeTriggerDistance) {
						var newValue = self.value * 2;
						if (newValue <= 2048) {
							var newBall = new Ball(newValue);
							newBall.x = (self.x + otherBall.x) / 2;
							newBall.y = (self.y + otherBall.y) / 2;
							newBall.velocityX = (self.velocityX + otherBall.velocityX) / 2;
							newBall.velocityY = (self.velocityY + otherBall.velocityY) / 2;
							newBall.mergeTimer = 10;
							// Add merge animation - scale and pulse effect
							newBall.scaleX = 0.2; // Start very small
							newBall.scaleY = 0.2; // Start very small
							newBall.alpha = 0.7; // Start semi-transparent
							tween(newBall, {
								scaleX: 1.3,
								scaleY: 1.3,
								alpha: 1
							}, {
								duration: 200,
								easing: tween.easeOut,
								onFinish: function onFinish() {
									// Pulse back to normal size
									tween(newBall, {
										scaleX: 1,
										scaleY: 1
									}, {
										duration: 150,
										easing: tween.easeInOut
									});
								}
							});
							// Animate merging balls with shrink and fade
							tween(self, {
								scaleX: 0,
								scaleY: 0,
								alpha: 0
							}, {
								duration: 250,
								easing: tween.easeIn
							});
							tween(otherBall, {
								scaleX: 0,
								scaleY: 0,
								alpha: 0
							}, {
								duration: 250,
								easing: tween.easeIn
							});
							balls.push(newBall);
							gameArea.addChild(newBall);
							// Mark for removal
							self.hasBeenMerged = true;
							otherBall.hasBeenMerged = true;
							LK.getSound('merge').play();
							LK.setScore(LK.getScore() + newValue);
							scoreText.setText(LK.getScore());
							// Check win condition
							if (newValue === 2048) {
								LK.showYouWin();
							}
							return;
						}
					}
				}
				// Enhanced separation for stable stacking
				if (distance < minDistance && distance > 0) {
					var overlap = minDistance - distance;
					var normalX = dx / distance;
					var normalY = dy / distance;
					// Different separation strategies based on ball positions
					var separationForce = overlap * 0.5;
					// If one ball is static and the other is moving, adjust separation
					if (self.isStatic && !otherBall.isStatic) {
						// Static ball moves less
						self.x -= normalX * separationForce * 0.2;
						self.y -= normalY * separationForce * 0.2;
						otherBall.x += normalX * separationForce * 0.8;
						otherBall.y += normalY * separationForce * 0.8;
					} else if (!self.isStatic && otherBall.isStatic) {
						// Other ball is static
						self.x -= normalX * separationForce * 0.8;
						self.y -= normalY * separationForce * 0.8;
						otherBall.x += normalX * separationForce * 0.2;
						otherBall.y += normalY * separationForce * 0.2;
					} else {
						// Both moving or both static - equal separation
						self.x -= normalX * separationForce;
						self.y -= normalY * separationForce;
						otherBall.x += normalX * separationForce;
						otherBall.y += normalY * separationForce;
					}
					// Ensure balls stay within bounds after separation
					var localWidth = gameAreaRight - gameAreaLeft;
					var localBottom = gameAreaHeight - 20; // gameAreaHeight minus bottom wall height
					self.x = Math.max(self.radius, Math.min(localWidth - self.radius, self.x));
					self.y = Math.max(self.radius, Math.min(localBottom - self.radius, self.y));
					// Re-check static state after separation
					if (self.isStatic && (Math.abs(self.x - (self.x - normalX * separationForce)) > 1 || Math.abs(self.y - (self.y - normalY * separationForce)) > 1)) {
						self.isStatic = false; // Ball was moved significantly, make it dynamic again
					}
				}
			}
		}
		// Periodic re-evaluation of static state for better stacking
		if (LK.ticks % 10 === 0 && !self.hasBeenMerged) {
			// Check every 10 frames
			if (!self.isStatic && Math.abs(self.velocityX) < 0.3 && Math.abs(self.velocityY) < 0.3) {
				// Check if ball should become static
				var supportFound = false;
				var localBottom = gameAreaHeight - 20;
				// Check ground support
				if (self.y + self.radius >= localBottom - 2) {
					supportFound = true;
				} else {
					// Check support from other static balls
					for (var k = 0; k < balls.length; k++) {
						var checkBall = balls[k];
						if (checkBall === self || checkBall.hasBeenMerged || !checkBall.isStatic) continue;
						var checkDx = checkBall.x - self.x;
						var checkDy = checkBall.y - self.y;
						var checkDistance = Math.sqrt(checkDx * checkDx + checkDy * checkDy);
						// Ball is resting on another static ball
						if (checkDistance < (self.radius + checkBall.radius) * 1.05 && checkDy > 0) {
							supportFound = true;
							break;
						}
					}
				}
				if (supportFound) {
					self.isStatic = true;
					self.velocityX = 0;
					self.velocityY = 0;
				}
			} else if (self.isStatic) {
				// Check if static ball should become dynamic (lost support)
				var stillSupported = false;
				var localBottom = gameAreaHeight - 20;
				// Check ground support
				if (self.y + self.radius >= localBottom - 2) {
					stillSupported = true;
				} else {
					// Check support from other balls
					for (var k = 0; k < balls.length; k++) {
						var supportBall = balls[k];
						if (supportBall === self || supportBall.hasBeenMerged) continue;
						var supportDx = supportBall.x - self.x;
						var supportDy = supportBall.y - self.y;
						var supportDistance = Math.sqrt(supportDx * supportDx + supportDy * supportDy);
						if (supportDistance < (self.radius + supportBall.radius) * 1.05 && supportDy > 0) {
							stillSupported = true;
							break;
						}
					}
				}
				if (!stillSupported) {
					self.isStatic = false; // Ball lost support, make it fall
				}
			}
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x34495e
});

/**** 
* Game Code
****/ 
var balls = [];
var nextBallValue = 2;
var gameAreaLeft = 224;
var gameAreaRight = 1824;
var gameAreaTop = 400;
var gameAreaBottom = 2600;
var dropCooldown = 0;
var gameAreaHeight = gameAreaBottom - gameAreaTop;
// Create game area background
var gameAreaBg = game.addChild(LK.getAsset('gameArea', {
	anchorX: 0.5,
	anchorY: 0,
	x: 1024,
	y: gameAreaTop
}));
// Create game area container for balls
var gameArea = new Container();
gameArea.x = gameAreaLeft;
gameArea.y = gameAreaTop;
game.addChild(gameArea);
// Create visible walls
var leftWall = game.addChild(LK.getAsset('leftWall', {
	anchorX: 1,
	anchorY: 0,
	x: gameAreaLeft,
	y: gameAreaTop
}));
var rightWall = game.addChild(LK.getAsset('rightWall', {
	anchorX: 0,
	anchorY: 0,
	x: gameAreaRight,
	y: gameAreaTop
}));
var bottomWall = game.addChild(LK.getAsset('bottomWall', {
	anchorX: 0.5,
	anchorY: 0,
	x: 1024,
	y: gameAreaBottom
}));
// Create danger zone indicator
var dangerZone = game.addChild(LK.getAsset('dangerZone', {
	anchorX: 0.5,
	anchorY: 0,
	x: 1024,
	y: gameAreaTop,
	alpha: 0
}));
// Create game over line (invisible)
var gameOverLine = game.addChild(LK.getAsset('gameOverLine', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 1024,
	y: gameAreaTop + 100,
	alpha: 0,
	visible: false
}));
// Create score display
var scoreText = new Text2('0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreText);
scoreText.y = 100;
// Create next ball preview
var nextBallPreview = LK.getAsset('ball' + nextBallValue, {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 1024,
	y: 300,
	scaleX: 0.75,
	scaleY: 0.75
});
game.addChild(nextBallPreview);
// Create next ball value text
var nextBallText = new Text2(nextBallValue.toString(), {
	size: 24,
	fill: 0xFFFFFF
});
nextBallText.anchor.set(0.5, 0.5);
nextBallText.x = 1024;
nextBallText.y = 300;
game.addChild(nextBallText);
// Create instruction text
var instructionText = new Text2('Tap to drop ball', {
	size: 40,
	fill: 0xFFFFFF
});
instructionText.anchor.set(0.5, 0);
instructionText.x = 1024;
instructionText.y = 150;
game.addChild(instructionText);
function getRandomNextBallValue() {
	var values = [2, 4, 8];
	return values[Math.floor(Math.random() * values.length)];
}
function updateNextBallPreview() {
	game.removeChild(nextBallPreview);
	game.removeChild(nextBallText);
	nextBallPreview = LK.getAsset('ball' + nextBallValue, {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 1024,
		y: 300,
		scaleX: 0.75,
		scaleY: 0.75
	});
	game.addChild(nextBallPreview);
	nextBallText = new Text2(nextBallValue.toString(), {
		size: 24,
		fill: 0xFFFFFF
	});
	nextBallText.anchor.set(0.5, 0.5);
	nextBallText.x = 1024;
	nextBallText.y = 300;
	game.addChild(nextBallText);
}
function checkGameOver() {
	for (var i = 0; i < balls.length; i++) {
		// Check if ball touches the danger zone (first 100 pixels of game area)
		// Since balls are in gameArea container, we use local coordinates
		// Only trigger game over if ball is static (not actively falling) and in danger zone
		if (balls[i].y - balls[i].radius <= 100 && balls[i].isStatic) {
			LK.showGameOver();
			return;
		}
	}
}
function cleanupMergedBalls() {
	for (var i = balls.length - 1; i >= 0; i--) {
		if (balls[i].hasBeenMerged) {
			gameArea.removeChild(balls[i]);
			balls[i].destroy();
			balls.splice(i, 1);
		}
	}
}
// Create initial 5 rows of balls
function createInitialBalls() {
	var localWidth = gameAreaRight - gameAreaLeft;
	var ballsPerRow = Math.floor(localWidth / 120); // Space balls 120px apart
	var startX = (localWidth - (ballsPerRow - 1) * 120) / 2; // Center the row
	for (var row = 0; row < 5; row++) {
		for (var col = 0; col < ballsPerRow; col++) {
			var initialBall = new Ball(getRandomNextBallValue());
			initialBall.x = startX + col * 120;
			initialBall.y = gameAreaHeight - 80 - row * 120; // Start from bottom, 120px spacing
			initialBall.velocityX = 0;
			initialBall.velocityY = 0;
			initialBall.isStatic = true; // Start as static for stable stacking
			balls.push(initialBall);
			gameArea.addChild(initialBall);
		}
	}
}
// Initialize the starting balls
createInitialBalls();
game.down = function (x, y, obj) {
	if (dropCooldown > 0) return;
	// Constrain drop position to game area (convert to local coordinates)
	var localWidth = gameAreaRight - gameAreaLeft;
	var localX = x - gameAreaLeft;
	var dropX = Math.max(60, Math.min(localWidth - 60, localX));
	var newBall = new Ball(nextBallValue);
	newBall.x = dropX;
	newBall.y = 170; // Start below the danger zone (100px) plus ball radius (60px) plus buffer
	newBall.velocityX = 0;
	newBall.velocityY = 0;
	balls.push(newBall);
	gameArea.addChild(newBall);
	LK.getSound('drop').play();
	// Update next ball
	nextBallValue = getRandomNextBallValue();
	updateNextBallPreview();
	dropCooldown = 30; // 0.5 seconds at 60fps
};
game.update = function () {
	if (dropCooldown > 0) {
		dropCooldown--;
	}
	cleanupMergedBalls();
	checkGameOver();
	// Update score display
	scoreText.setText(LK.getScore());
};

===================================================================
--- original.js
+++ change.js
@@ -33,8 +33,12 @@
 		if (self.mergeTimer > 0) {
 			self.mergeTimer--;
 			return;
 		}
+		// Skip all physics processing for static balls to prevent vibration
+		if (self.isStatic) {
+			return;
+		}
 		// Apply physics only if not static
 		if (!self.isStatic) {
 			// Store previous position for continuous collision detection
 			var prevX = self.x;
@@ -217,154 +221,123 @@
 				self.velocityX *= -self.bounce;
 			}
 		}
 		// Enhanced merge detection pass - check for nearby same-numbered balls
-		for (var i = 0; i < balls.length; i++) {
-			var otherBall = balls[i];
-			if (otherBall === self || otherBall.hasBeenMerged || otherBall.mergeTimer > 0 || self.mergeTimer > 0) continue;
-			var dx = otherBall.x - self.x;
-			var dy = otherBall.y - self.y;
-			var distance = Math.sqrt(dx * dx + dy * dy);
-			var minDistance = self.radius + otherBall.radius;
-			// Enhanced merge sensitivity for same-numbered balls
-			if (self.value === otherBall.value) {
-				var mergeTriggerDistance = minDistance * 1.3; // 30% more sensitive
-				if (distance < mergeTriggerDistance) {
-					var newValue = self.value * 2;
-					if (newValue <= 2048) {
-						var newBall = new Ball(newValue);
-						newBall.x = (self.x + otherBall.x) / 2;
-						newBall.y = (self.y + otherBall.y) / 2;
-						newBall.velocityX = (self.velocityX + otherBall.velocityX) / 2;
-						newBall.velocityY = (self.velocityY + otherBall.velocityY) / 2;
-						newBall.mergeTimer = 10;
-						// Add merge animation - scale and pulse effect
-						newBall.scaleX = 0.2; // Start very small
-						newBall.scaleY = 0.2; // Start very small
-						newBall.alpha = 0.7; // Start semi-transparent
-						tween(newBall, {
-							scaleX: 1.3,
-							scaleY: 1.3,
-							alpha: 1
-						}, {
-							duration: 200,
-							easing: tween.easeOut,
-							onFinish: function onFinish() {
-								// Pulse back to normal size
-								tween(newBall, {
-									scaleX: 1,
-									scaleY: 1
-								}, {
-									duration: 150,
-									easing: tween.easeInOut
-								});
+		// Skip if this ball is static to prevent vibration
+		if (!self.isStatic) {
+			for (var i = 0; i < balls.length; i++) {
+				var otherBall = balls[i];
+				if (otherBall === self || otherBall.hasBeenMerged || otherBall.mergeTimer > 0 || self.mergeTimer > 0) continue;
+				var dx = otherBall.x - self.x;
+				var dy = otherBall.y - self.y;
+				var distance = Math.sqrt(dx * dx + dy * dy);
+				var minDistance = self.radius + otherBall.radius;
+				// Enhanced merge sensitivity for same-numbered balls
+				if (self.value === otherBall.value) {
+					var mergeTriggerDistance = minDistance * 1.3; // 30% more sensitive
+					if (distance < mergeTriggerDistance) {
+						var newValue = self.value * 2;
+						if (newValue <= 2048) {
+							var newBall = new Ball(newValue);
+							newBall.x = (self.x + otherBall.x) / 2;
+							newBall.y = (self.y + otherBall.y) / 2;
+							newBall.velocityX = (self.velocityX + otherBall.velocityX) / 2;
+							newBall.velocityY = (self.velocityY + otherBall.velocityY) / 2;
+							newBall.mergeTimer = 10;
+							// Add merge animation - scale and pulse effect
+							newBall.scaleX = 0.2; // Start very small
+							newBall.scaleY = 0.2; // Start very small
+							newBall.alpha = 0.7; // Start semi-transparent
+							tween(newBall, {
+								scaleX: 1.3,
+								scaleY: 1.3,
+								alpha: 1
+							}, {
+								duration: 200,
+								easing: tween.easeOut,
+								onFinish: function onFinish() {
+									// Pulse back to normal size
+									tween(newBall, {
+										scaleX: 1,
+										scaleY: 1
+									}, {
+										duration: 150,
+										easing: tween.easeInOut
+									});
+								}
+							});
+							// Animate merging balls with shrink and fade
+							tween(self, {
+								scaleX: 0,
+								scaleY: 0,
+								alpha: 0
+							}, {
+								duration: 250,
+								easing: tween.easeIn
+							});
+							tween(otherBall, {
+								scaleX: 0,
+								scaleY: 0,
+								alpha: 0
+							}, {
+								duration: 250,
+								easing: tween.easeIn
+							});
+							balls.push(newBall);
+							gameArea.addChild(newBall);
+							// Mark for removal
+							self.hasBeenMerged = true;
+							otherBall.hasBeenMerged = true;
+							LK.getSound('merge').play();
+							LK.setScore(LK.getScore() + newValue);
+							scoreText.setText(LK.getScore());
+							// Check win condition
+							if (newValue === 2048) {
+								LK.showYouWin();
 							}
-						});
-						// Animate merging balls with shrink and fade
-						tween(self, {
-							scaleX: 0,
-							scaleY: 0,
-							alpha: 0
-						}, {
-							duration: 250,
-							easing: tween.easeIn
-						});
-						tween(otherBall, {
-							scaleX: 0,
-							scaleY: 0,
-							alpha: 0
-						}, {
-							duration: 250,
-							easing: tween.easeIn
-						});
-						balls.push(newBall);
-						gameArea.addChild(newBall);
-						// Mark for removal
-						self.hasBeenMerged = true;
-						otherBall.hasBeenMerged = true;
-						LK.getSound('merge').play();
-						LK.setScore(LK.getScore() + newValue);
-						scoreText.setText(LK.getScore());
-						// Check win condition
-						if (newValue === 2048) {
-							LK.showYouWin();
+							return;
 						}
-						return;
 					}
 				}
-			}
-			// Enhanced separation for stable stacking
-			if (distance < minDistance && distance > 0) {
-				var overlap = minDistance - distance;
-				var normalX = dx / distance;
-				var normalY = dy / distance;
-				// Different separation strategies based on ball positions
-				var separationForce = overlap * 0.5;
-				// If one ball is static and the other is moving, adjust separation
-				if (self.isStatic && !otherBall.isStatic) {
-					// Static ball moves less
-					self.x -= normalX * separationForce * 0.2;
-					self.y -= normalY * separationForce * 0.2;
-					otherBall.x += normalX * separationForce * 0.8;
-					otherBall.y += normalY * separationForce * 0.8;
-				} else if (!self.isStatic && otherBall.isStatic) {
-					// Other ball is static
-					self.x -= normalX * separationForce * 0.8;
-					self.y -= normalY * separationForce * 0.8;
-					otherBall.x += normalX * separationForce * 0.2;
-					otherBall.y += normalY * separationForce * 0.2;
-				} else {
-					// Both moving or both static - equal separation
-					self.x -= normalX * separationForce;
-					self.y -= normalY * separationForce;
-					otherBall.x += normalX * separationForce;
-					otherBall.y += normalY * separationForce;
+				// Enhanced separation for stable stacking
+				if (distance < minDistance && distance > 0) {
+					var overlap = minDistance - distance;
+					var normalX = dx / distance;
+					var normalY = dy / distance;
+					// Different separation strategies based on ball positions
+					var separationForce = overlap * 0.5;
+					// If one ball is static and the other is moving, adjust separation
+					if (self.isStatic && !otherBall.isStatic) {
+						// Static ball moves less
+						self.x -= normalX * separationForce * 0.2;
+						self.y -= normalY * separationForce * 0.2;
+						otherBall.x += normalX * separationForce * 0.8;
+						otherBall.y += normalY * separationForce * 0.8;
+					} else if (!self.isStatic && otherBall.isStatic) {
+						// Other ball is static
+						self.x -= normalX * separationForce * 0.8;
+						self.y -= normalY * separationForce * 0.8;
+						otherBall.x += normalX * separationForce * 0.2;
+						otherBall.y += normalY * separationForce * 0.2;
+					} else {
+						// Both moving or both static - equal separation
+						self.x -= normalX * separationForce;
+						self.y -= normalY * separationForce;
+						otherBall.x += normalX * separationForce;
+						otherBall.y += normalY * separationForce;
+					}
+					// Ensure balls stay within bounds after separation
+					var localWidth = gameAreaRight - gameAreaLeft;
+					var localBottom = gameAreaHeight - 20; // gameAreaHeight minus bottom wall height
+					self.x = Math.max(self.radius, Math.min(localWidth - self.radius, self.x));
+					self.y = Math.max(self.radius, Math.min(localBottom - self.radius, self.y));
+					// Re-check static state after separation
+					if (self.isStatic && (Math.abs(self.x - (self.x - normalX * separationForce)) > 1 || Math.abs(self.y - (self.y - normalY * separationForce)) > 1)) {
+						self.isStatic = false; // Ball was moved significantly, make it dynamic again
+					}
 				}
-				// Ensure balls stay within bounds after separation
-				var localWidth = gameAreaRight - gameAreaLeft;
-				var localBottom = gameAreaHeight - 20; // gameAreaHeight minus bottom wall height
-				self.x = Math.max(self.radius, Math.min(localWidth - self.radius, self.x));
-				self.y = Math.max(self.radius, Math.min(localBottom - self.radius, self.y));
-				// Re-check static state after separation
-				if (self.isStatic && (Math.abs(self.x - (self.x - normalX * separationForce)) > 1 || Math.abs(self.y - (self.y - normalY * separationForce)) > 1)) {
-					self.isStatic = false; // Ball was moved significantly, make it dynamic again
-				}
 			}
 		}
-		// Add subtle shake animation to static balls
-		if (self.isStatic && !self.hasBeenMerged && !self.shaking) {
-			// Create continuous subtle shake animation
-			var _createShakeAnimation = function createShakeAnimation() {
-				if (!self.isStatic || self.hasBeenMerged) {
-					self.shaking = false;
-					return;
-				}
-				var shakeIntensity = 0.5; // Very subtle shake
-				var randomX = (Math.random() - 0.5) * shakeIntensity;
-				var randomY = (Math.random() - 0.5) * shakeIntensity;
-				tween(self, {
-					x: originalX + randomX,
-					y: originalY + randomY
-				}, {
-					duration: 100 + Math.random() * 100,
-					// Random duration between 100-200ms
-					easing: tween.easeInOut,
-					onFinish: function onFinish() {
-						if (self.isStatic && !self.hasBeenMerged) {
-							originalX = self.x;
-							originalY = self.y;
-							_createShakeAnimation(); // Continue shaking
-						} else {
-							self.shaking = false;
-						}
-					}
-				});
-			};
-			self.shaking = true;
-			var originalX = self.x;
-			var originalY = self.y;
-			_createShakeAnimation();
-		}
 		// Periodic re-evaluation of static state for better stacking
 		if (LK.ticks % 10 === 0 && !self.hasBeenMerged) {
 			// Check every 10 frames
 			if (!self.isStatic && Math.abs(self.velocityX) < 0.3 && Math.abs(self.velocityY) < 0.3) {
@@ -416,9 +389,8 @@
 					}
 				}
 				if (!stillSupported) {
 					self.isStatic = false; // Ball lost support, make it fall
-					self.shaking = false; // Stop shaking when becoming dynamic
 				}
 			}
 		}
 	};