===================================================================
--- original.js
+++ change.js
@@ -5,76 +5,67 @@
 
 /**** 
 * Classes
 ****/ 
-var Ball = Container.expand(function () {
+var FusionBall = Container.expand(function (tier) {
 	var self = Container.call(this);
-	var ballGraphics = self.attachAsset('ball', {
+	self.tier = tier || 1;
+	self.assetId = 'ball_tier' + self.tier;
+	var ballGraphics = self.attachAsset(self.assetId, {
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
 	self.velocityX = 0;
 	self.velocityY = 0;
-	self.speed = 8;
+	self.gravity = 0.5;
+	self.bounce = 0.7;
+	self.lastIntersecting = false;
 	self.lastPortalUsed = null;
 	self.portalCooldown = 0;
-	self.reset = function () {
-		self.x = 1024;
-		self.y = 1366;
-		var angle = (Math.random() - 0.5) * Math.PI * 0.5;
-		self.velocityX = Math.cos(angle) * self.speed * (Math.random() > 0.5 ? 1 : -1);
-		self.velocityY = Math.sin(angle) * self.speed;
-		self.lastPortalUsed = null;
-		self.portalCooldown = 0;
-	};
 	self.update = function () {
 		if (self.portalCooldown > 0) {
 			self.portalCooldown--;
 		}
+		// Apply physics
+		self.velocityY += self.gravity;
 		self.x += self.velocityX;
 		self.y += self.velocityY;
-		// Top and bottom bounds
-		if (self.y <= 15 || self.y >= 2717) {
-			self.velocityY = -self.velocityY;
-			self.y = self.y <= 15 ? 15 : 2717;
-			LK.getSound('bounce').play();
+		// Container bounds collision
+		var radius = ballGraphics.width / 2;
+		if (self.x - radius < containerBounds.left) {
+			self.x = containerBounds.left + radius;
+			self.velocityX *= -self.bounce;
 		}
-	};
-	return self;
-});
-var Paddle = Container.expand(function () {
-	var self = Container.call(this);
-	var paddleGraphics = self.attachAsset('paddle', {
-		anchorX: 0.5,
-		anchorY: 0.5
-	});
-	self.speed = 12;
-	self.targetY = 0;
-	self.update = function () {
-		// Smooth movement towards target position
-		var diff = self.targetY - self.y;
-		if (Math.abs(diff) > 2) {
-			self.y += diff * 0.15;
+		if (self.x + radius > containerBounds.right) {
+			self.x = containerBounds.right - radius;
+			self.velocityX *= -self.bounce;
 		}
-		// Keep paddle within bounds
-		if (self.y < 100) self.y = 100;
-		if (self.y > 2632) self.y = 2632;
+		if (self.y + radius > containerBounds.bottom) {
+			self.y = containerBounds.bottom - radius;
+			self.velocityY *= -self.bounce;
+			self.velocityX *= 0.8; // Friction
+		}
+		// Top boundary - game over condition
+		if (self.y - radius < containerBounds.top) {
+			gameOverTriggered = true;
+		}
 	};
 	return self;
 });
-var Portal = Container.expand(function () {
+var Portal = Container.expand(function (isEntrance) {
 	var self = Container.call(this);
-	var portalGraphics = self.attachAsset('portal', {
+	self.isEntrance = isEntrance || false;
+	var portalGraphics = self.attachAsset(self.isEntrance ? 'portal_entrance' : 'portal_exit', {
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
 	self.paired = null;
 	self.animationPhase = 0;
 	self.update = function () {
-		self.animationPhase += 0.2;
-		portalGraphics.rotation = self.animationPhase * 0.5;
-		portalGraphics.scaleX = 1 + Math.sin(self.animationPhase) * 0.2;
-		portalGraphics.scaleY = 1 + Math.sin(self.animationPhase) * 0.2;
+		self.animationPhase += 0.15;
+		portalGraphics.rotation = self.animationPhase;
+		portalGraphics.scaleX = 1 + Math.sin(self.animationPhase * 2) * 0.1;
+		portalGraphics.scaleY = 1 + Math.sin(self.animationPhase * 2) * 0.1;
 	};
 	return self;
 });
 
@@ -89,98 +80,83 @@
 * Game Code
 ****/ 
 // Game variables
 var level = 1;
-var gameMode = 'normal'; // normal, multiball, gravity, obstacles, speed
-var ballCount = 0;
-var modeChangeTimer = 0;
+var gameMode = 'normal'; // normal, gravity, speed, chaos, mega
+var balls = [];
+var portals = [];
+var currentBallTier = 1;
+var nextBallTier = 1;
+var gameOverTriggered = false;
 var portalSpawnTimer = 0;
-var lastBallOut = '';
-// Game objects
-var playerPaddle, aiPaddle, balls, portals, centerLine;
-var levelText, modeText, scoreText;
-// Initialize game objects
-balls = [];
-portals = [];
-// Create center line
-centerLine = game.addChild(LK.getAsset('centerLine', {
+var containerBounds = {};
+// UI elements
+var levelText, modeText, scoreText, nextBallPreview;
+// Initialize container
+var container = game.addChild(LK.getAsset('container', {
 	anchorX: 0.5,
 	anchorY: 0.5
 }));
-centerLine.x = 1024;
-centerLine.y = 1366;
-// Create paddles
-playerPaddle = game.addChild(new Paddle());
-playerPaddle.x = 100;
-playerPaddle.y = 1366;
-playerPaddle.targetY = 1366;
-aiPaddle = game.addChild(new Paddle());
-aiPaddle.x = 1948;
-aiPaddle.y = 1366;
-aiPaddle.targetY = 1366;
-// Create initial ball
-var initialBall = game.addChild(new Ball());
-initialBall.reset();
-balls.push(initialBall);
+container.x = 1024;
+container.y = 1366;
+container.alpha = 0.3;
+// Set container bounds
+containerBounds = {
+	left: 324,
+	right: 1724,
+	top: 466,
+	bottom: 2266
+};
 // Create UI
 levelText = new Text2('Level: 1', {
 	size: 60,
 	fill: 0xFFFFFF
 });
 levelText.anchor.set(0.5, 0);
 LK.gui.top.addChild(levelText);
-levelText.y = 100;
+levelText.y = 80;
 modeText = new Text2('Mode: Normal', {
 	size: 50,
 	fill: 0x00FFFF
 });
 modeText.anchor.set(0.5, 0);
 LK.gui.top.addChild(modeText);
-modeText.y = 180;
-scoreText = new Text2('0', {
-	size: 80,
+modeText.y = 150;
+scoreText = new Text2('Score: 0', {
+	size: 70,
 	fill: 0xFFFFFF
 });
 scoreText.anchor.set(0.5, 0);
 LK.gui.top.addChild(scoreText);
-scoreText.y = 250;
-// Functions
+scoreText.y = 220;
+nextBallPreview = game.addChild(new FusionBall(1));
+nextBallPreview.x = 1024;
+nextBallPreview.y = 350;
+nextBallPreview.alpha = 0.7;
 function updateGameMode() {
 	var newMode = 'normal';
-	if (level >= 21) newMode = 'speed';else if (level >= 16) newMode = 'obstacles';else if (level >= 11) newMode = 'gravity';else if (level >= 6) newMode = 'multiball';
+	var modeLevel = Math.floor((level - 1) / 5) + 1;
+	if (modeLevel === 1) newMode = 'normal';else if (modeLevel === 2) newMode = 'gravity';else if (modeLevel === 3) newMode = 'speed';else if (modeLevel === 4) newMode = 'chaos';else newMode = 'mega';
 	if (newMode !== gameMode) {
 		gameMode = newMode;
 		modeText.setText('Mode: ' + gameMode.charAt(0).toUpperCase() + gameMode.slice(1));
-		// Mode-specific initialization
-		if (gameMode === 'multiball' && balls.length === 1) {
-			var ball2 = game.addChild(new Ball());
-			ball2.reset();
-			ball2.speed = 6;
-			balls.push(ball2);
-		}
-		if (gameMode === 'speed') {
-			balls.forEach(function (ball) {
-				ball.speed = Math.min(ball.speed * 1.5, 20);
-			});
-		}
+		LK.getSound('levelup').play();
 	}
 }
 function spawnPortalPair() {
 	if (portals.length >= 4) return;
-	var portal1 = game.addChild(new Portal());
-	var portal2 = game.addChild(new Portal());
-	// Position portals randomly but not too close to paddles
-	portal1.x = 300 + Math.random() * 600;
-	portal1.y = 200 + Math.random() * 2332;
-	portal2.x = 1148 + Math.random() * 600;
-	portal2.y = 200 + Math.random() * 2332;
+	var portal1 = game.addChild(new Portal(true));
+	var portal2 = game.addChild(new Portal(false));
+	// Position portals within container bounds
+	portal1.x = containerBounds.left + 100 + Math.random() * (containerBounds.right - containerBounds.left - 200);
+	portal1.y = containerBounds.top + 100 + Math.random() * (containerBounds.bottom - containerBounds.top - 200);
+	portal2.x = containerBounds.left + 100 + Math.random() * (containerBounds.right - containerBounds.left - 200);
+	portal2.y = containerBounds.top + 100 + Math.random() * (containerBounds.bottom - containerBounds.top - 200);
 	// Pair them
 	portal1.paired = portal2;
 	portal2.paired = portal1;
-	// Color the pair differently
-	portal2.getChildAt(0).tint = 0xff00ff;
 	portals.push(portal1, portal2);
-	// Remove portals after 10 seconds
+	// Remove portals after 8 seconds
 	LK.setTimeout(function () {
 		var index1 = portals.indexOf(portal1);
 		var index2 = portals.indexOf(portal2);
 		if (index1 >= 0) {
@@ -190,46 +166,65 @@
 		if (index2 >= 0) {
 			portal2.destroy();
 			portals.splice(index2, 1);
 		}
-	}, 10000);
+	}, 8000);
 }
-function checkCollisions() {
-	balls.forEach(function (ball, ballIndex) {
-		// Paddle collisions
-		if (ball.intersects(playerPaddle) || ball.intersects(aiPaddle)) {
-			var paddle = ball.intersects(playerPaddle) ? playerPaddle : aiPaddle;
-			// Reverse X velocity and add some angle based on where it hit the paddle
-			ball.velocityX = -ball.velocityX;
-			var hitPos = (ball.y - paddle.y) / 100; // -1 to 1
-			ball.velocityY += hitPos * 3;
-			// Keep ball from paddle
-			if (ball.intersects(playerPaddle)) {
-				ball.x = playerPaddle.x + 50;
-			} else {
-				ball.x = aiPaddle.x - 50;
+function checkFusions() {
+	for (var i = 0; i < balls.length; i++) {
+		for (var j = i + 1; j < balls.length; j++) {
+			var ball1 = balls[i];
+			var ball2 = balls[j];
+			if (ball1.tier === ball2.tier && ball1.intersects(ball2)) {
+				// Create fusion ball
+				var newTier = Math.min(ball1.tier + 1, 7);
+				var fusionBall = game.addChild(new FusionBall(newTier));
+				fusionBall.x = (ball1.x + ball2.x) / 2;
+				fusionBall.y = (ball1.y + ball2.y) / 2;
+				fusionBall.velocityX = (ball1.velocityX + ball2.velocityX) / 2;
+				fusionBall.velocityY = (ball1.velocityY + ball2.velocityY) / 2;
+				// Add to balls array
+				balls.push(fusionBall);
+				// Remove original balls
+				ball1.destroy();
+				ball2.destroy();
+				balls.splice(j, 1);
+				balls.splice(i, 1);
+				// Update score
+				var points = newTier * 10;
+				LK.setScore(LK.getScore() + points);
+				scoreText.setText('Score: ' + LK.getScore());
+				LK.getSound('fusion').play();
+				// Check win condition
+				if (newTier === 7) {
+					level++;
+					levelText.setText('Level: ' + level);
+					updateGameMode();
+				}
+				return; // Only process one fusion per frame
 			}
-			LK.setScore(LK.getScore() + 1);
-			scoreText.setText(LK.getScore().toString());
-			LK.getSound('bounce').play();
 		}
-		// Portal collisions
+	}
+}
+function checkPortalCollisions() {
+	balls.forEach(function (ball) {
 		if (ball.portalCooldown === 0) {
 			portals.forEach(function (portal) {
 				if (ball.intersects(portal) && portal.paired && ball.lastPortalUsed !== portal) {
+					// Teleport ball
 					ball.x = portal.paired.x;
 					ball.y = portal.paired.y;
 					ball.lastPortalUsed = portal;
-					ball.portalCooldown = 30;
+					ball.portalCooldown = 60;
 					LK.setScore(LK.getScore() + 5);
-					scoreText.setText(LK.getScore().toString());
-					LK.getSound('portal').play();
-					// Add some visual effect
+					scoreText.setText('Score: ' + LK.getScore());
+					LK.getSound('portal_sound').play();
+					// Portal effect
 					tween(portal.paired.getChildAt(0), {
 						scaleX: 1.5,
 						scaleY: 1.5
 					}, {
-						duration: 200,
+						duration: 300,
 						easing: tween.easeOut,
 						onFinish: function onFinish() {
 							tween(portal.paired.getChildAt(0), {
 								scaleX: 1,
@@ -241,76 +236,75 @@
 					});
 				}
 			});
 		}
-		// Check if ball is out of bounds
-		if (ball.x < -50) {
-			lastBallOut = 'left';
-			ball.destroy();
-			balls.splice(ballIndex, 1);
-		} else if (ball.x > 2098) {
-			lastBallOut = 'right';
-			ball.destroy();
-			balls.splice(ballIndex, 1);
-		}
 	});
 }
-function updateAI() {
-	if (balls.length > 0) {
-		var closestBall = balls[0];
-		var closestDist = Math.abs(balls[0].x - aiPaddle.x);
-		balls.forEach(function (ball) {
-			var dist = Math.abs(ball.x - aiPaddle.x);
-			if (dist < closestDist) {
-				closestBall = ball;
-				closestDist = dist;
-			}
-		});
-		// AI follows the closest ball
-		aiPaddle.targetY = closestBall.y;
-	}
+function generateNextBallTier() {
+	var maxTier = Math.min(3 + Math.floor(level / 3), 5);
+	nextBallTier = Math.floor(Math.random() * maxTier) + 1;
+	nextBallPreview.destroy();
+	nextBallPreview = game.addChild(new FusionBall(nextBallTier));
+	nextBallPreview.x = 1024;
+	nextBallPreview.y = 350;
+	nextBallPreview.alpha = 0.7;
 }
-// Touch controls
-game.move = function (x, y, obj) {
-	playerPaddle.targetY = y;
-};
+// Touch controls - drop ball on tap
 game.down = function (x, y, obj) {
-	playerPaddle.targetY = y;
+	if (gameOverTriggered) return;
+	var newBall = game.addChild(new FusionBall(nextBallTier));
+	newBall.x = Math.max(containerBounds.left + 40, Math.min(x, containerBounds.right - 40));
+	newBall.y = containerBounds.top - 50;
+	newBall.velocityY = 2;
+	balls.push(newBall);
+	LK.getSound('drop').play();
+	generateNextBallTier();
 };
+// Initialize first ball tier
+generateNextBallTier();
 // Main game loop
 game.update = function () {
-	// Update game mode based on level
+	if (gameOverTriggered) {
+		LK.showGameOver();
+		return;
+	}
+	// Update game mode
 	updateGameMode();
 	// Spawn portals periodically
 	portalSpawnTimer++;
-	if (portalSpawnTimer > 300) {
-		// Every 5 seconds
+	if (portalSpawnTimer > 180 + Math.random() * 120) {
 		spawnPortalPair();
 		portalSpawnTimer = 0;
 	}
-	// Update AI
-	updateAI();
-	// Check collisions
-	checkCollisions();
-	// Check if all balls are out
-	if (balls.length === 0) {
-		if (lastBallOut === 'left') {
-			// AI scored, game over
-			LK.showGameOver();
-		} else {
-			// Player scored, next level
-			level++;
-			levelText.setText('Level: ' + level);
-			var newBall = game.addChild(new Ball());
-			newBall.reset();
-			newBall.speed = Math.min(8 + level * 0.5, 15);
-			balls.push(newBall);
-			LK.getSound('score').play();
-		}
-	}
-	// Apply gravity mode effect
+	// Check fusions
+	checkFusions();
+	// Check portal collisions
+	checkPortalCollisions();
+	// Apply mode-specific effects
 	if (gameMode === 'gravity') {
 		balls.forEach(function (ball) {
-			ball.velocityY += 0.3; // Gravity effect
+			ball.gravity = 0.8;
 		});
+	} else if (gameMode === 'speed') {
+		balls.forEach(function (ball) {
+			ball.gravity = 0.3;
+			ball.velocityX *= 1.02;
+		});
+	} else if (gameMode === 'chaos') {
+		balls.forEach(function (ball) {
+			if (Math.random() < 0.01) {
+				ball.velocityX += (Math.random() - 0.5) * 2;
+			}
+		});
+	} else if (gameMode === 'mega') {
+		balls.forEach(function (ball) {
+			ball.gravity = 1.0;
+			if (Math.random() < 0.005) {
+				ball.velocityX += (Math.random() - 0.5) * 3;
+			}
+		});
+	} else {
+		balls.forEach(function (ball) {
+			ball.gravity = 0.5;
+		});
 	}
 };
\ No newline at end of file