===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,192 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var Obstacle = Container.expand(function (obstacleType) {
+	var self = Container.call(this);
+	var obstacleGraphics = self.attachAsset(obstacleType, {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.obstacleType = obstacleType;
+	self.speed = 2;
+	self.lastY = undefined;
+	self.lastIntersecting = false;
+	self.update = function () {
+		self.y += self.speed;
+	};
+	return self;
+});
+var MovingBranch = Obstacle.expand(function () {
+	var self = Obstacle.call(this, 'branch');
+	self.moveDirection = Math.random() > 0.5 ? 1 : -1;
+	self.moveSpeed = 1 + Math.random() * 2;
+	self.update = function () {
+		self.y += self.speed;
+		self.x += self.moveDirection * self.moveSpeed;
+		// Bounce off edges
+		if (self.x < 100 || self.x > 1948) {
+			self.moveDirection *= -1;
+		}
+	};
+	return self;
+});
+var Player = Container.expand(function () {
+	var self = Container.call(this);
+	var playerGraphics = self.attachAsset('player', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 3;
+	self.targetX = 2048 / 2;
+	self.targetY = 2500;
+	self.update = function () {
+		// Smooth movement towards target position
+		var dx = self.targetX - self.x;
+		var dy = self.targetY - self.y;
+		self.x += dx * 0.08;
+		self.y += dy * 0.08;
+		// Auto-move upward through forest
+		self.targetY -= self.speed;
+		// Keep player in bounds
+		if (self.targetX < 100) self.targetX = 100;
+		if (self.targetX > 1948) self.targetX = 1948;
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
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+	backgroundColor: 0x228B22
+});
+
+/**** 
+* Game Code
+****/ 
+// Game variables
+var player;
+var obstacles = [];
+var distanceTraveled = 0;
+var gameSpeed = 2;
+var obstacleSpawnTimer = 0;
+var forestDensity = 60; // Lower = more dense
+var dragNode = null;
+// Initialize player
+player = game.addChild(new Player());
+player.x = 2048 / 2;
+player.y = 2500;
+// Score display
+var scoreTxt = new Text2('Distance: 0', {
+	size: 60,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0, 0);
+LK.gui.topRight.addChild(scoreTxt);
+// Distance display
+var distanceTxt = new Text2('Forest Depth: 0m', {
+	size: 50,
+	fill: 0x90EE90
+});
+distanceTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(distanceTxt);
+// Victory check distance (reach grasslands)
+var victoryDistance = 5000;
+// Spawn obstacle function
+function spawnObstacle() {
+	var obstacleTypes = ['tree', 'branch', 'log', 'rock'];
+	var randomType = obstacleTypes[Math.floor(Math.random() * obstacleTypes.length)];
+	var obstacle;
+	if (randomType === 'branch' && Math.random() > 0.7) {
+		obstacle = new MovingBranch();
+	} else {
+		obstacle = new Obstacle(randomType);
+	}
+	obstacle.x = 200 + Math.random() * 1648;
+	obstacle.y = -100;
+	obstacle.speed = gameSpeed + Math.random() * 2;
+	obstacle.lastY = obstacle.y;
+	obstacle.lastIntersecting = false;
+	obstacles.push(obstacle);
+	game.addChild(obstacle);
+}
+// Handle input
+function handleMove(x, y, obj) {
+	if (dragNode) {
+		dragNode.targetX = x;
+		dragNode.targetY = y;
+	}
+}
+game.move = handleMove;
+game.down = function (x, y, obj) {
+	dragNode = player;
+	handleMove(x, y, obj);
+};
+game.up = function (x, y, obj) {
+	dragNode = null;
+};
+// Main game loop
+game.update = function () {
+	// Update distance traveled
+	distanceTraveled += gameSpeed;
+	// Update displays
+	scoreTxt.setText('Score: ' + LK.getScore());
+	distanceTxt.setText('Forest Depth: ' + Math.floor(distanceTraveled / 10) + 'm');
+	// Increase game difficulty over time
+	if (LK.ticks % 300 === 0) {
+		gameSpeed += 0.1;
+		if (forestDensity > 20) forestDensity -= 2;
+	}
+	// Spawn obstacles
+	obstacleSpawnTimer++;
+	if (obstacleSpawnTimer >= forestDensity) {
+		spawnObstacle();
+		obstacleSpawnTimer = 0;
+	}
+	// Update obstacles
+	for (var i = obstacles.length - 1; i >= 0; i--) {
+		var obstacle = obstacles[i];
+		if (obstacle.lastY === undefined) obstacle.lastY = obstacle.y;
+		if (obstacle.lastIntersecting === undefined) obstacle.lastIntersecting = false;
+		// Remove off-screen obstacles
+		if (obstacle.lastY < 2800 && obstacle.y >= 2800) {
+			obstacle.destroy();
+			obstacles.splice(i, 1);
+			// Award points for avoiding obstacle
+			LK.setScore(LK.getScore() + 10);
+			LK.getSound('dodge').play();
+			continue;
+		}
+		// Check collision with player
+		var currentIntersecting = obstacle.intersects(player);
+		if (!obstacle.lastIntersecting && currentIntersecting) {
+			// Collision detected
+			LK.getSound('crash').play();
+			LK.effects.flashScreen(0xff0000, 800);
+			LK.showGameOver();
+			return;
+		}
+		obstacle.lastY = obstacle.y;
+		obstacle.lastIntersecting = currentIntersecting;
+	}
+	// Check victory condition
+	if (distanceTraveled >= victoryDistance) {
+		LK.effects.flashScreen(0x00ff00, 1000);
+		LK.showYouWin();
+		return;
+	}
+	// Keep player in forest bounds
+	if (player.y < 100) {
+		player.targetY = 100;
+	}
+	if (player.y > 2600) {
+		player.targetY = 2600;
+	}
+};
+// Start background music
+LK.playMusic('forestTheme');
\ No newline at end of file