===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,461 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var Bubble = Container.expand(function () {
+	var self = Container.call(this);
+	var bubbleGraphic = self.attachAsset('bubble', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		alpha: 0.7
+	});
+	self.speed = 2 + Math.random() * 3;
+	self.hasTransformed = false;
+	self.update = function () {
+		self.y += self.speed;
+		// Transform to snow when hitting ground
+		if (self.y > 2300 && !self.hasTransformed) {
+			self.hasTransformed = true;
+			// Create new snow on ground
+			var snow = new FallingSnow();
+			snow.x = self.x;
+			snow.y = self.y;
+			currentScene.addChild(snow);
+			fallingSnowParticles.push(snow);
+			self.destroy();
+		}
+		// Remove if off screen
+		if (self.y > 2800) {
+			self.destroy();
+		}
+	};
+	return self;
+});
+var BubbleBottle = Container.expand(function () {
+	var self = Container.call(this);
+	var bottleGraphic = self.attachAsset('bubbleBottle', {
+		anchorX: 0.5,
+		anchorY: 1.0
+	});
+	self.down = function (x, y, obj) {
+		if (snowMelted) {
+			// Create bubbles
+			for (var i = 0; i < 5; i++) {
+				var bubble = new Bubble();
+				bubble.x = self.x + (Math.random() - 0.5) * 100;
+				bubble.y = self.y - 50;
+				currentScene.addChild(bubble);
+				bubbles.push(bubble);
+			}
+			LK.getSound('bubblePop').play();
+		}
+	};
+	return self;
+});
+var FallingSnow = Container.expand(function () {
+	var self = Container.call(this);
+	var snowGraphic = self.attachAsset('fallingSnow', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 3 + Math.random() * 2;
+	self.settled = false;
+	self.update = function () {
+		if (!self.settled) {
+			self.y += self.speed;
+			// Settle on ground
+			if (self.y > 2300) {
+				self.settled = true;
+				self.y = 2300;
+				self.speed = 0;
+			}
+		}
+	};
+	return self;
+});
+var Footprint = Container.expand(function () {
+	var self = Container.call(this);
+	var footprintGraphic = self.attachAsset('footprint', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		alpha: 0
+	});
+	// Fade in animation
+	tween(footprintGraphic, {
+		alpha: 0.8
+	}, {
+		duration: 500
+	});
+	self.melt = function () {
+		tween(footprintGraphic, {
+			alpha: 0
+		}, {
+			duration: 1000,
+			onFinish: function onFinish() {
+				self.destroy();
+			}
+		});
+	};
+	return self;
+});
+var Pig = Container.expand(function (pigType) {
+	var self = Container.call(this);
+	var pigBody = self.attachAsset('pigBody', {
+		anchorX: 0.5,
+		anchorY: 1.0
+	});
+	var pigHead = self.attachAsset('pigHead', {
+		anchorX: 0.5,
+		anchorY: 1.0,
+		y: -40
+	});
+	var pigSnout = self.attachAsset('pigSnout', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		y: -40
+	});
+	self.pigType = pigType || 'normal';
+	self.canMakeAngel = pigType === 'angel1' || pigType === 'angel2';
+	self.down = function (x, y, obj) {
+		if (self.canMakeAngel && !snowMelted) {
+			// Create snow angel
+			var angel = new SnowAngel();
+			angel.x = self.x;
+			angel.y = self.y;
+			currentScene.addChild(angel);
+			snowAngels.push(angel);
+			// Pig animation
+			tween(self, {
+				y: self.y + 20
+			}, {
+				duration: 200,
+				onFinish: function onFinish() {
+					tween(self, {
+						y: self.y - 20
+					}, {
+						duration: 200
+					});
+				}
+			});
+		} else if (!snowMelted) {
+			// Create footprint
+			var footprint = new Footprint();
+			footprint.x = self.x;
+			footprint.y = self.y + 20;
+			currentScene.addChild(footprint);
+			footprints.push(footprint);
+		}
+		LK.getSound('pigSqueal').play();
+	};
+	return self;
+});
+var Scene = Container.expand(function (sceneType) {
+	var self = Container.call(this);
+	// Sky background
+	var sky = self.attachAsset('sky', {
+		anchorX: 0,
+		anchorY: 0
+	});
+	// Snow ground
+	var ground = self.attachAsset('snowGround', {
+		anchorX: 0,
+		anchorY: 1.0,
+		y: 2732
+	});
+	self.sceneType = sceneType;
+	self.setupScene();
+	self.setupScene = function () {
+		if (sceneType === 'forest') {
+			// Add trees
+			var tree1 = new Tree(10);
+			tree1.x = 400;
+			tree1.y = 2300;
+			self.addChild(tree1);
+			var tree2 = new Tree(8);
+			tree2.x = 800;
+			tree2.y = 2300;
+			self.addChild(tree2);
+			var tree3 = new Tree(12);
+			tree3.x = 1200;
+			tree3.y = 2300;
+			self.addChild(tree3);
+			// Add pigs
+			var pig1 = new Pig('normal');
+			pig1.x = 600;
+			pig1.y = 2300;
+			self.addChild(pig1);
+			var pig2 = new Pig('angel1');
+			pig2.x = 1000;
+			pig2.y = 2300;
+			self.addChild(pig2);
+		} else if (sceneType === 'mountain') {
+			// Add mountain
+			var mountain = self.attachAsset('mountain', {
+				anchorX: 0.5,
+				anchorY: 1.0,
+				x: 1024,
+				y: 2300
+			});
+			// Add sled
+			var sled = new Sled();
+			sled.x = 800;
+			sled.y = 1800;
+			self.addChild(sled);
+			// Add pig
+			var pig = new Pig('normal');
+			pig.x = 1200;
+			pig.y = 2300;
+			self.addChild(pig);
+		} else if (sceneType === 'garden') {
+			// Add bubble bottle
+			var bubbleBottle = new BubbleBottle();
+			bubbleBottle.x = 1024;
+			bubbleBottle.y = 2300;
+			self.addChild(bubbleBottle);
+			// Add angel-making pigs
+			var pig1 = new Pig('angel1');
+			pig1.x = 700;
+			pig1.y = 2300;
+			self.addChild(pig1);
+			var pig2 = new Pig('angel2');
+			pig2.x = 1300;
+			pig2.y = 2300;
+			self.addChild(pig2);
+		}
+	};
+	return self;
+});
+var Sled = Container.expand(function () {
+	var self = Container.call(this);
+	var sledGraphic = self.attachAsset('sled', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.isMoving = false;
+	self.down = function (x, y, obj) {
+		if (!self.isMoving && !snowMelted) {
+			self.isMoving = true;
+			// Sled animation down the mountain
+			tween(self, {
+				x: self.x + 400,
+				y: self.y + 300,
+				rotation: 0.5
+			}, {
+				duration: 2000,
+				easing: tween.easeOut,
+				onFinish: function onFinish() {
+					self.isMoving = false;
+					// Reset position
+					self.x = self.x - 400;
+					self.y = self.y - 300;
+					self.rotation = 0;
+				}
+			});
+			LK.getSound('sledWoosh').play();
+		}
+	};
+	return self;
+});
+var SnowAngel = Container.expand(function () {
+	var self = Container.call(this);
+	var angelGraphic = self.attachAsset('snowAngel', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		alpha: 0
+	});
+	// Fade in animation
+	tween(angelGraphic, {
+		alpha: 0.9
+	}, {
+		duration: 800
+	});
+	self.melt = function () {
+		tween(angelGraphic, {
+			alpha: 0
+		}, {
+			duration: 1000,
+			onFinish: function onFinish() {
+				self.destroy();
+			}
+		});
+	};
+	return self;
+});
+var Tree = Container.expand(function (snowAmount) {
+	var self = Container.call(this);
+	var treeBase = self.attachAsset('treeBase', {
+		anchorX: 0.5,
+		anchorY: 1.0
+	});
+	var treeBranch = self.attachAsset('treeBranch', {
+		anchorX: 0.5,
+		anchorY: 1.0,
+		y: -200
+	});
+	var treeSnow = self.attachAsset('treeSnow', {
+		anchorX: 0.5,
+		anchorY: 1.0,
+		y: -200
+	});
+	self.snowAmount = snowAmount || 10;
+	self.tapCount = 0;
+	self.isSnowMelted = false;
+	self.down = function (x, y, obj) {
+		if (self.tapCount < self.snowAmount && !self.isSnowMelted) {
+			self.tapCount++;
+			// Create falling snow particles
+			for (var i = 0; i < 3; i++) {
+				var snow = new FallingSnow();
+				snow.x = self.x + (Math.random() - 0.5) * 150;
+				snow.y = self.y - 150;
+				currentScene.addChild(snow);
+				fallingSnowParticles.push(snow);
+			}
+			// Shake tree animation
+			tween(self, {
+				x: self.x + 10
+			}, {
+				duration: 100,
+				onFinish: function onFinish() {
+					tween(self, {
+						x: self.x - 10
+					}, {
+						duration: 100
+					});
+				}
+			});
+			LK.getSound('snowFall').play();
+			// Gradually reduce snow on tree
+			var snowScale = 1 - self.tapCount / self.snowAmount;
+			tween(treeSnow, {
+				scaleX: snowScale,
+				scaleY: snowScale
+			}, {
+				duration: 300
+			});
+		}
+	};
+	self.meltSnow = function () {
+		self.isSnowMelted = true;
+		tween(treeSnow, {
+			alpha: 0
+		}, {
+			duration: 1000
+		});
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x87CEEB
+});
+
+/**** 
+* Game Code
+****/ 
+// Sounds
+// Interactive elements
+// Pig elements
+// Tree elements
+// Background elements
+var scenes = [];
+var currentSceneIndex = 0;
+var currentScene = null;
+var footprints = [];
+var snowAngels = [];
+var bubbles = [];
+var fallingSnowParticles = [];
+var snowMelted = false;
+var meltTimer = 0;
+// Create scenes
+scenes.push(new Scene('forest'));
+scenes.push(new Scene('mountain'));
+scenes.push(new Scene('garden'));
+// Set initial scene
+currentScene = scenes[currentSceneIndex];
+game.addChild(currentScene);
+// Create curtains
+var leftCurtain = game.attachAsset('curtain', {
+	anchorX: 0,
+	anchorY: 0,
+	x: 0,
+	alpha: 0.8
+});
+var rightCurtain = game.attachAsset('curtain', {
+	anchorX: 1.0,
+	anchorY: 0,
+	x: 2048,
+	alpha: 0.8
+});
+// Curtain navigation
+leftCurtain.down = function (x, y, obj) {
+	if (currentSceneIndex > 0) {
+		currentSceneIndex--;
+		switchScene();
+		LK.getSound('curtainSwish').play();
+	}
+};
+rightCurtain.down = function (x, y, obj) {
+	if (currentSceneIndex < scenes.length - 1) {
+		currentSceneIndex++;
+		switchScene();
+		LK.getSound('curtainSwish').play();
+	}
+};
+function switchScene() {
+	game.removeChild(currentScene);
+	currentScene = scenes[currentSceneIndex];
+	game.addChild(currentScene);
+	// Bring curtains to front
+	game.removeChild(leftCurtain);
+	game.removeChild(rightCurtain);
+	game.addChild(leftCurtain);
+	game.addChild(rightCurtain);
+}
+// Snow melting timer (after 30 seconds)
+var snowMeltTime = 1800; // 30 seconds at 60fps
+game.update = function () {
+	meltTimer++;
+	// Start melting snow after timer
+	if (meltTimer > snowMeltTime && !snowMelted) {
+		snowMelted = true;
+		// Melt all footprints
+		for (var i = footprints.length - 1; i >= 0; i--) {
+			footprints[i].melt();
+			footprints.splice(i, 1);
+		}
+		// Melt all snow angels
+		for (var i = snowAngels.length - 1; i >= 0; i--) {
+			snowAngels[i].melt();
+			snowAngels.splice(i, 1);
+		}
+		// Melt tree snow
+		for (var i = 0; i < currentScene.children.length; i++) {
+			var child = currentScene.children[i];
+			if (child.meltSnow) {
+				child.meltSnow();
+			}
+		}
+	}
+	// Clean up bubbles that are off screen
+	for (var i = bubbles.length - 1; i >= 0; i--) {
+		var bubble = bubbles[i];
+		if (bubble.y > 2800 || bubble.hasTransformed) {
+			bubbles.splice(i, 1);
+		}
+	}
+	// Clean up falling snow
+	for (var i = fallingSnowParticles.length - 1; i >= 0; i--) {
+		var snow = fallingSnowParticles[i];
+		if (snow.y > 2800) {
+			fallingSnowParticles.splice(i, 1);
+		}
+	}
+};
\ No newline at end of file