===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,283 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+var storage = LK.import("@upit/storage.v1");
+
+/**** 
+* Classes
+****/ 
+var GroundTile = Container.expand(function (x) {
+	var self = Container.call(this);
+	var groundGraphics = self.attachAsset('ground', {
+		anchorX: 0,
+		anchorY: 1.0
+	});
+	self.x = x || 0;
+	self.y = 2460;
+	self.speed = gameSpeed;
+	self.update = function () {
+		self.x -= self.speed;
+	};
+	return self;
+});
+var Obstacle = Container.expand(function (type, x, y) {
+	var self = Container.call(this);
+	self.obstacleType = type || 'barrier';
+	var assetId = 'obstacle';
+	if (self.obstacleType === 'gap') assetId = 'gap';
+	if (self.obstacleType === 'spike') assetId = 'spike';
+	if (self.obstacleType === 'platform') assetId = 'platform';
+	var obstacleGraphics = self.attachAsset(assetId, {
+		anchorX: 0.5,
+		anchorY: 1.0
+	});
+	self.x = x || 2200;
+	self.y = y || 2400;
+	self.speed = gameSpeed;
+	if (self.obstacleType === 'platform') {
+		self.moveDirection = 1;
+		self.moveRange = 100;
+		self.startY = self.y;
+	}
+	self.update = function () {
+		self.x -= self.speed;
+		if (self.obstacleType === 'platform') {
+			self.y += self.moveDirection * 2;
+			if (self.y > self.startY + self.moveRange || self.y < self.startY - self.moveRange) {
+				self.moveDirection *= -1;
+			}
+		}
+	};
+	return self;
+});
+var Player = Container.expand(function () {
+	var self = Container.call(this);
+	var playerGraphics = self.attachAsset('player', {
+		anchorX: 0.5,
+		anchorY: 1.0
+	});
+	self.isJumping = false;
+	self.isSliding = false;
+	self.velocityY = 0;
+	self.groundY = 2400;
+	self.jumpPower = -25;
+	self.gravity = 1.2;
+	self.normalHeight = 80;
+	self.slideHeight = 40;
+	self.jump = function () {
+		if (!self.isJumping && !self.isSliding) {
+			self.isJumping = true;
+			self.velocityY = self.jumpPower;
+			LK.getSound('jump').play();
+		}
+	};
+	self.slide = function () {
+		if (!self.isJumping && !self.isSliding) {
+			self.isSliding = true;
+			playerGraphics.height = self.slideHeight;
+			LK.getSound('slide').play();
+			LK.setTimeout(function () {
+				self.isSliding = false;
+				playerGraphics.height = self.normalHeight;
+			}, 600);
+		}
+	};
+	self.update = function () {
+		if (self.isJumping) {
+			self.velocityY += self.gravity;
+			self.y += self.velocityY;
+			if (self.y >= self.groundY) {
+				self.y = self.groundY;
+				self.velocityY = 0;
+				self.isJumping = false;
+			}
+		}
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x87CEEB
+});
+
+/**** 
+* Game Code
+****/ 
+var gameSpeed = 8;
+var gameRunning = false;
+var distance = 0;
+var difficultyTimer = 0;
+var obstacleTimer = 0;
+var groundTimer = 0;
+var player;
+var obstacles = [];
+var groundTiles = [];
+var scoreText = new Text2('Distance: 0', {
+	size: 60,
+	fill: 0xFFFFFF
+});
+scoreText.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreText);
+var instructionText = new Text2('Tap to Jump • Swipe Down to Slide', {
+	size: 45,
+	fill: 0xFFFFFF
+});
+instructionText.anchor.set(0.5, 0.5);
+instructionText.x = 1024;
+instructionText.y = 1000;
+game.addChild(instructionText);
+var startText = new Text2('TAP TO START', {
+	size: 80,
+	fill: 0xFFD700
+});
+startText.anchor.set(0.5, 0.5);
+startText.x = 1024;
+startText.y = 1366;
+game.addChild(startText);
+// Initialize player
+player = game.addChild(new Player());
+player.x = 400;
+player.y = 2400;
+// Initialize ground
+for (var i = 0; i < 15; i++) {
+	var groundTile = game.addChild(new GroundTile(i * 200));
+	groundTiles.push(groundTile);
+}
+// High score display
+var highScore = storage.highScore || 0;
+var highScoreText = new Text2('Best: ' + highScore, {
+	size: 50,
+	fill: 0xFFFF00
+});
+highScoreText.anchor.set(1, 0);
+LK.gui.topRight.addChild(highScoreText);
+function startGame() {
+	gameRunning = true;
+	gameSpeed = 8;
+	distance = 0;
+	difficultyTimer = 0;
+	obstacleTimer = 0;
+	// Clear existing obstacles
+	for (var i = obstacles.length - 1; i >= 0; i--) {
+		obstacles[i].destroy();
+	}
+	obstacles = [];
+	// Hide start text
+	startText.visible = false;
+	instructionText.visible = false;
+	// Reset player position
+	player.x = 400;
+	player.y = 2400;
+	player.isJumping = false;
+	player.isSliding = false;
+	player.velocityY = 0;
+}
+function endGame() {
+	gameRunning = false;
+	// Update high score
+	if (distance > highScore) {
+		highScore = distance;
+		storage.highScore = highScore;
+		highScoreText.setText('Best: ' + highScore);
+	}
+	// Play hit sound
+	LK.getSound('hit').play();
+	// Flash effect
+	LK.effects.flashScreen(0xFF0000, 500);
+	// Show game over
+	LK.showGameOver();
+}
+function generateObstacle() {
+	var obstacleTypes = ['barrier', 'gap', 'spike', 'platform'];
+	var randomType = obstacleTypes[Math.floor(Math.random() * obstacleTypes.length)];
+	var obstacleX = 2200;
+	var obstacleY = 2400;
+	if (randomType === 'platform') {
+		obstacleY = 2200 + Math.random() * 200;
+	}
+	var obstacle = new Obstacle(randomType, obstacleX, obstacleY);
+	obstacle.speed = gameSpeed;
+	obstacles.push(obstacle);
+	game.addChild(obstacle);
+}
+var lastTouchY = 0;
+var swipeThreshold = 100;
+game.down = function (x, y, obj) {
+	lastTouchY = y;
+	if (!gameRunning) {
+		startGame();
+		return;
+	}
+	// Jump on tap
+	player.jump();
+};
+game.up = function (x, y, obj) {
+	if (!gameRunning) return;
+	var swipeDistance = y - lastTouchY;
+	// Swipe down to slide
+	if (swipeDistance > swipeThreshold) {
+		player.slide();
+	}
+};
+game.update = function () {
+	if (!gameRunning) return;
+	// Update distance
+	distance += 1;
+	scoreText.setText('Distance: ' + Math.floor(distance / 10));
+	// Increase difficulty over time
+	difficultyTimer++;
+	if (difficultyTimer % 600 === 0) {
+		// Every 10 seconds
+		gameSpeed += 0.5;
+	}
+	// Generate obstacles
+	obstacleTimer++;
+	var obstacleInterval = Math.max(60, 120 - Math.floor(distance / 100));
+	if (obstacleTimer >= obstacleInterval) {
+		obstacleTimer = 0;
+		generateObstacle();
+	}
+	// Update and manage obstacles
+	for (var i = obstacles.length - 1; i >= 0; i--) {
+		var obstacle = obstacles[i];
+		obstacle.speed = gameSpeed;
+		if (obstacle.x < -200) {
+			obstacle.destroy();
+			obstacles.splice(i, 1);
+			continue;
+		}
+		// Collision detection
+		if (player.intersects(obstacle)) {
+			if (obstacle.obstacleType === 'gap') {
+				// Only collide with gap if player is on ground
+				if (!player.isJumping) {
+					endGame();
+					return;
+				}
+			} else if (obstacle.obstacleType === 'spike') {
+				// Spikes are deadly unless sliding
+				if (!player.isSliding) {
+					endGame();
+					return;
+				}
+			} else {
+				// Regular obstacles
+				endGame();
+				return;
+			}
+		}
+	}
+	// Update and manage ground tiles
+	groundTimer++;
+	for (var j = groundTiles.length - 1; j >= 0; j--) {
+		var ground = groundTiles[j];
+		ground.speed = gameSpeed;
+		if (ground.x < -200) {
+			ground.x = groundTiles[groundTiles.length - 1].x + 200;
+		}
+	}
+};
\ No newline at end of file