===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,239 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+var storage = LK.import("@upit/storage.v1");
+
+/**** 
+* Classes
+****/ 
+var Obstacle = Container.expand(function () {
+	var self = Container.call(this);
+	var obstacleGraphics = self.attachAsset('obstacle', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	return self;
+});
+var PowerpuffGirl = Container.expand(function (girlType) {
+	var self = Container.call(this);
+	self.girlType = girlType || 'blossom';
+	self.isSliding = false;
+	self.velocityY = 0;
+	self.velocityX = 0;
+	self.trackPoints = [];
+	var girlGraphics = self.attachAsset(self.girlType, {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.startSlide = function () {
+		if (!self.isSliding) {
+			self.isSliding = true;
+			self.velocityY = 5;
+			self.velocityX = Math.random() * 2 - 1; // Random horizontal drift
+			LK.getSound('slide').play();
+			// Add rotation animation while sliding
+			tween(girlGraphics, {
+				rotation: Math.PI * 2
+			}, {
+				duration: 2000,
+				easing: tween.linear
+			});
+		}
+	};
+	self.update = function () {
+		if (self.isSliding) {
+			// Apply gravity and movement
+			self.velocityY += 0.2;
+			self.x += self.velocityX;
+			self.y += self.velocityY;
+			// Create snow tracks
+			if (LK.ticks % 5 === 0) {
+				var trackPoint = {
+					x: self.x,
+					y: self.y,
+					created: LK.ticks
+				};
+				self.trackPoints.push(trackPoint);
+				// Create visual track
+				var track = LK.getAsset('snowTrack', {
+					anchorX: 0.5,
+					anchorY: 0.5,
+					x: self.x,
+					y: self.y,
+					alpha: 0.6
+				});
+				game.addChild(track);
+				tracks.push(track);
+			}
+			// Keep girl within bounds
+			if (self.x < 50) {
+				self.x = 50;
+				self.velocityX = Math.abs(self.velocityX);
+			}
+			if (self.x > 1998) {
+				self.x = 1998;
+				self.velocityX = -Math.abs(self.velocityX);
+			}
+		}
+	};
+	self.down = function (x, y, obj) {
+		self.startSlide();
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x87ceeb
+});
+
+/**** 
+* Game Code
+****/ 
+var currentLevel = storage.currentLevel || 1;
+var girls = [];
+var obstacles = [];
+var tracks = [];
+var levelComplete = false;
+var mountain;
+// Level configurations
+var levelConfigs = [{
+	// Level 1
+	mountainAsset: 'mountain1',
+	girlStartY: 200,
+	finishLine: 1400,
+	obstacleCount: 3
+}, {
+	// Level 2
+	mountainAsset: 'mountain2',
+	girlStartY: 150,
+	finishLine: 1500,
+	obstacleCount: 5
+}, {
+	// Level 3
+	mountainAsset: 'mountain3',
+	girlStartY: 100,
+	finishLine: 1600,
+	obstacleCount: 7
+}];
+// Level text
+var levelText = new Text2('Level ' + currentLevel, {
+	size: 80,
+	fill: 0xFFFFFF
+});
+levelText.anchor.set(0.5, 0);
+LK.gui.top.addChild(levelText);
+// Instructions text
+var instructionText = new Text2('Tap the Powerpuff Girls to slide!', {
+	size: 50,
+	fill: 0xFFFFFF
+});
+instructionText.anchor.set(0.5, 0);
+instructionText.y = 100;
+LK.gui.top.addChild(instructionText);
+function initializeLevel(level) {
+	// Clear previous level
+	girls.forEach(function (girl) {
+		girl.destroy();
+	});
+	obstacles.forEach(function (obstacle) {
+		obstacle.destroy();
+	});
+	tracks.forEach(function (track) {
+		track.destroy();
+	});
+	if (mountain) {
+		mountain.destroy();
+	}
+	girls = [];
+	obstacles = [];
+	tracks = [];
+	levelComplete = false;
+	var config = levelConfigs[level - 1];
+	// Create mountain background
+	mountain = game.addChild(LK.getAsset(config.mountainAsset, {
+		anchorX: 0.5,
+		anchorY: 0,
+		x: 1024,
+		y: 500
+	}));
+	// Create Powerpuff Girls
+	var girlTypes = ['blossom', 'bubbles', 'buttercup'];
+	for (var i = 0; i < 3; i++) {
+		var girl = new PowerpuffGirl(girlTypes[i]);
+		girl.x = 400 + i * 400;
+		girl.y = config.girlStartY;
+		girls.push(girl);
+		game.addChild(girl);
+	}
+	// Create obstacles
+	for (var j = 0; j < config.obstacleCount; j++) {
+		var obstacle = new Obstacle();
+		obstacle.x = Math.random() * 1800 + 100;
+		obstacle.y = Math.random() * 800 + 600;
+		obstacles.push(obstacle);
+		game.addChild(obstacle);
+	}
+}
+function checkLevelCompletion() {
+	var completedGirls = 0;
+	girls.forEach(function (girl) {
+		if (girl.y >= levelConfigs[currentLevel - 1].finishLine) {
+			completedGirls++;
+		}
+	});
+	if (completedGirls >= 3 && !levelComplete) {
+		levelComplete = true;
+		LK.getSound('complete').play();
+		// Flash effect
+		LK.effects.flashScreen(0xffffff, 500);
+		// Advance to next level
+		setTimeout(function () {
+			if (currentLevel < 3) {
+				currentLevel++;
+				storage.currentLevel = currentLevel;
+				levelText.setText('Level ' + currentLevel);
+				initializeLevel(currentLevel);
+			} else {
+				// Game completed
+				LK.showYouWin();
+			}
+		}, 1500);
+	}
+}
+function checkCollisions() {
+	girls.forEach(function (girl) {
+		obstacles.forEach(function (obstacle) {
+			if (girl.intersects(obstacle) && girl.isSliding) {
+				// Bounce off obstacle
+				girl.velocityX = -girl.velocityX * 1.5;
+				girl.velocityY *= 0.7;
+				// Visual effect
+				LK.effects.flashObject(obstacle, 0xff0000, 300);
+			}
+		});
+	});
+}
+// Initialize first level
+initializeLevel(currentLevel);
+game.update = function () {
+	checkCollisions();
+	checkLevelCompletion();
+	// Clean up old tracks
+	for (var i = tracks.length - 1; i >= 0; i--) {
+		var track = tracks[i];
+		if (LK.ticks - track.created > 300) {
+			// Remove after 5 seconds
+			track.destroy();
+			tracks.splice(i, 1);
+		}
+	}
+	// Update track fade
+	tracks.forEach(function (track) {
+		var age = LK.ticks - track.created;
+		track.alpha = Math.max(0.1, 0.8 - age / 300);
+	});
+};
\ No newline at end of file