===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,261 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var Dude = Container.expand(function () {
+	var self = Container.call(this);
+	var dudeGraphics = self.attachAsset('dude', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.velocityY = 0;
+	self.isJumping = false;
+	self.isOnPlatform = false;
+	self.jumpPower = 25;
+	self.gravity = 0.8;
+	self.maxFallSpeed = 15;
+	self.invincible = false;
+	self.invincibleTimer = 0;
+	self.jump = function () {
+		if (self.isOnPlatform) {
+			self.velocityY = -self.jumpPower;
+			self.isJumping = true;
+			self.isOnPlatform = false;
+			LK.getSound('jump').play();
+		}
+	};
+	self.update = function () {
+		// Apply gravity
+		self.velocityY += self.gravity;
+		if (self.velocityY > self.maxFallSpeed) {
+			self.velocityY = self.maxFallSpeed;
+		}
+		// Update position
+		self.y += self.velocityY;
+		// Handle invincibility timer
+		if (self.invincible) {
+			self.invincibleTimer--;
+			if (self.invincibleTimer <= 0) {
+				self.invincible = false;
+				dudeGraphics.alpha = 1;
+			} else {
+				dudeGraphics.alpha = Math.sin(self.invincibleTimer * 0.3) * 0.5 + 0.5;
+			}
+		}
+		// Keep dude on screen horizontally
+		if (self.x < 40) self.x = 40;
+		if (self.x > 2008) self.x = 2008;
+		// Check if fallen off screen
+		if (self.y > cameraY + 2732 + 200) {
+			LK.showGameOver();
+		}
+	};
+	return self;
+});
+var Platform = Container.expand(function (type) {
+	var self = Container.call(this);
+	self.type = type || 'normal';
+	self.landed = false;
+	self.disappearing = false;
+	self.moveDirection = 1;
+	self.moveRange = 300;
+	self.startX = 0;
+	var platformGraphics;
+	if (self.type === 'moving') {
+		platformGraphics = self.attachAsset('movingPlatform', {
+			anchorX: 0.5,
+			anchorY: 0.5
+		});
+	} else if (self.type === 'disappearing') {
+		platformGraphics = self.attachAsset('disappearingPlatform', {
+			anchorX: 0.5,
+			anchorY: 0.5
+		});
+	} else if (self.type === 'powerup') {
+		platformGraphics = self.attachAsset('powerUpPlatform', {
+			anchorX: 0.5,
+			anchorY: 0.5
+		});
+	} else {
+		platformGraphics = self.attachAsset('platform', {
+			anchorX: 0.5,
+			anchorY: 0.5
+		});
+	}
+	self.update = function () {
+		// Moving platform behavior
+		if (self.type === 'moving') {
+			self.x += self.moveDirection * 2;
+			if (self.x > self.startX + self.moveRange || self.x < self.startX - self.moveRange) {
+				self.moveDirection *= -1;
+			}
+		}
+		// Disappearing platform behavior
+		if (self.type === 'disappearing' && self.landed && !self.disappearing) {
+			self.disappearing = true;
+			tween(platformGraphics, {
+				alpha: 0
+			}, {
+				duration: 1000,
+				onFinish: function onFinish() {
+					self.active = false;
+				}
+			});
+		}
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x87ceeb
+});
+
+/**** 
+* Game Code
+****/ 
+var dude = game.addChild(new Dude());
+var platforms = [];
+var cameraY = 0;
+var highestY = 2400;
+var lastPlatformY = 2400;
+var platformSpacing = 200;
+// Create score display
+var scoreTxt = new Text2('0', {
+	size: 60,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreTxt);
+// Create height display
+var heightTxt = new Text2('Height: 0m', {
+	size: 40,
+	fill: 0xFFFFFF
+});
+heightTxt.anchor.set(1, 0);
+heightTxt.x = -20;
+heightTxt.y = 20;
+LK.gui.topRight.addChild(heightTxt);
+// Initialize dude position
+dude.x = 1024;
+dude.y = 2400;
+// Create initial platforms
+function createPlatform(x, y, type) {
+	var platform = new Platform(type);
+	platform.x = x;
+	platform.y = y;
+	platform.startX = x;
+	platform.active = true;
+	platforms.push(platform);
+	game.addChild(platform);
+	return platform;
+}
+// Create starting platform
+createPlatform(1024, 2450, 'normal');
+// Generate initial platforms
+for (var i = 0; i < 20; i++) {
+	generateNextPlatform();
+}
+function generateNextPlatform() {
+	lastPlatformY -= platformSpacing + Math.random() * 100;
+	var x = 200 + Math.random() * 1648;
+	// Determine platform type based on height
+	var type = 'normal';
+	var height = Math.abs(lastPlatformY - 2400);
+	if (height > 1000) {
+		var rand = Math.random();
+		if (rand < 0.3) {
+			type = 'moving';
+		} else if (rand < 0.5) {
+			type = 'disappearing';
+		} else if (rand < 0.6) {
+			type = 'powerup';
+		}
+	}
+	createPlatform(x, lastPlatformY, type);
+}
+function updateCamera() {
+	var targetY = dude.y - 1800;
+	if (targetY < cameraY) {
+		cameraY = targetY;
+		game.y = -cameraY;
+		// Update highest position
+		if (dude.y < highestY) {
+			highestY = dude.y;
+			var height = Math.floor((2400 - highestY) / 10);
+			LK.setScore(height);
+			scoreTxt.setText(LK.getScore());
+			heightTxt.setText('Height: ' + height + 'm');
+		}
+	}
+}
+function checkPlatformCollisions() {
+	if (dude.velocityY <= 0) return; // Only check when falling
+	for (var i = 0; i < platforms.length; i++) {
+		var platform = platforms[i];
+		if (!platform.active) continue;
+		var dudeBottom = dude.y + 40;
+		var platformTop = platform.y - 15;
+		var platformBottom = platform.y + 15;
+		if (dudeBottom >= platformTop && dudeBottom <= platformBottom + 20) {
+			if (dude.x >= platform.x - 100 && dude.x <= platform.x + 100) {
+				// Landing on platform
+				dude.y = platformTop - 40;
+				dude.velocityY = 0;
+				dude.isOnPlatform = true;
+				dude.isJumping = false;
+				if (!platform.landed) {
+					platform.landed = true;
+					LK.getSound('land').play();
+					// Handle special platform effects
+					if (platform.type === 'powerup') {
+						dude.invincible = true;
+						dude.invincibleTimer = 300;
+						dude.jumpPower = 35;
+						LK.getSound('powerup').play();
+						// Reset jump power after time
+						LK.setTimeout(function () {
+							dude.jumpPower = 25;
+						}, 3000);
+					}
+				}
+				break;
+			}
+		}
+	}
+}
+function cleanupPlatforms() {
+	for (var i = platforms.length - 1; i >= 0; i--) {
+		var platform = platforms[i];
+		if (platform.y > cameraY + 3000 || !platform.active) {
+			platform.destroy();
+			platforms.splice(i, 1);
+		}
+	}
+}
+function generateMorePlatforms() {
+	while (lastPlatformY > cameraY - 1000) {
+		generateNextPlatform();
+	}
+}
+// Touch controls
+game.down = function (x, y, obj) {
+	dude.jump();
+};
+// Main game loop
+game.update = function () {
+	updateCamera();
+	checkPlatformCollisions();
+	cleanupPlatforms();
+	generateMorePlatforms();
+	// Remove platforms that are too far down
+	if (LK.ticks % 60 === 0) {
+		cleanupPlatforms();
+	}
+};
\ No newline at end of file