===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,220 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var Cat = Container.expand(function () {
+	var self = Container.call(this);
+	var catGraphics = self.attachAsset('cat', {
+		anchorX: 0.5,
+		anchorY: 1.0
+	});
+	self.groundY = 2632;
+	self.isJumping = false;
+	self.jumpVelocity = 0;
+	self.gravity = 1.2;
+	self.maxJumpVelocity = -25;
+	self.y = self.groundY;
+	self.startJump = function () {
+		if (!self.isJumping) {
+			self.isJumping = true;
+			self.jumpVelocity = self.maxJumpVelocity;
+			LK.getSound('jump').play();
+		}
+	};
+	self.update = function () {
+		if (self.isJumping) {
+			self.y += self.jumpVelocity;
+			self.jumpVelocity += self.gravity;
+			if (self.y >= self.groundY) {
+				self.y = self.groundY;
+				self.isJumping = false;
+				self.jumpVelocity = 0;
+			}
+		}
+	};
+	return self;
+});
+var Fish = Container.expand(function () {
+	var self = Container.call(this);
+	var fishGraphics = self.attachAsset('fish', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = gameSpeed;
+	self.collected = false;
+	self.update = function () {
+		self.x -= self.speed;
+		// Simple floating animation
+		self.y += Math.sin(LK.ticks * 0.1 + self.x * 0.01) * 0.5;
+	};
+	return self;
+});
+var Obstacle = Container.expand(function (type) {
+	var self = Container.call(this);
+	var assetName = 'obstacle' + type;
+	var obstacleGraphics = self.attachAsset(assetName, {
+		anchorX: 0.5,
+		anchorY: 1.0
+	});
+	self.speed = gameSpeed;
+	self.type = type;
+	self.update = function () {
+		self.x -= self.speed;
+	};
+	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 speedIncreaseRate = 0.002;
+var maxSpeed = 20;
+var distance = 0;
+var fishCollected = 0;
+var cat = game.addChild(new Cat());
+cat.x = 300;
+var obstacles = [];
+var fishes = [];
+var obstacleSpawnTimer = 0;
+var obstacleSpawnInterval = 120;
+var fishSpawnTimer = 0;
+var fishSpawnInterval = 180;
+var ground = game.addChild(LK.getAsset('ground', {
+	anchorX: 0,
+	anchorY: 1.0
+}));
+ground.x = 0;
+ground.y = 2732;
+// UI Elements
+var distanceText = new Text2('Distance: 0m', {
+	size: 60,
+	fill: 0xFFFFFF
+});
+distanceText.anchor.set(0, 0);
+LK.gui.topLeft.addChild(distanceText);
+distanceText.x = 120;
+distanceText.y = 20;
+var fishText = new Text2('Fish: 0', {
+	size: 60,
+	fill: 0xFFFFFF
+});
+fishText.anchor.set(1, 0);
+LK.gui.topRight.addChild(fishText);
+fishText.x = -20;
+fishText.y = 20;
+var isDragging = false;
+var dragStartY = 0;
+game.down = function (x, y, obj) {
+	isDragging = true;
+	dragStartY = y;
+	cat.startJump();
+};
+game.move = function (x, y, obj) {
+	if (isDragging) {
+		var dragDistance = dragStartY - y;
+		if (dragDistance > 50 && cat.isJumping && cat.jumpVelocity > -35) {
+			cat.jumpVelocity = Math.max(cat.jumpVelocity - 0.5, -35);
+		}
+	}
+};
+game.up = function (x, y, obj) {
+	isDragging = false;
+};
+function spawnObstacle() {
+	var obstacleType = Math.floor(Math.random() * 3) + 1;
+	var obstacle = new Obstacle(obstacleType);
+	obstacle.x = 2200;
+	obstacle.y = 2632;
+	obstacles.push(obstacle);
+	game.addChild(obstacle);
+}
+function spawnFish() {
+	var fish = new Fish();
+	fish.x = 2200;
+	fish.y = 2400 + Math.random() * 200;
+	fishes.push(fish);
+	game.addChild(fish);
+}
+game.update = function () {
+	// Increase game speed over time
+	if (gameSpeed < maxSpeed) {
+		gameSpeed += speedIncreaseRate;
+	}
+	// Update distance
+	distance += gameSpeed * 0.1;
+	distanceText.setText('Distance: ' + Math.floor(distance) + 'm');
+	// Spawn obstacles
+	obstacleSpawnTimer++;
+	if (obstacleSpawnTimer >= obstacleSpawnInterval) {
+		spawnObstacle();
+		obstacleSpawnTimer = 0;
+		obstacleSpawnInterval = 80 + Math.random() * 80;
+	}
+	// Spawn fish
+	fishSpawnTimer++;
+	if (fishSpawnTimer >= fishSpawnInterval) {
+		spawnFish();
+		fishSpawnTimer = 0;
+		fishSpawnInterval = 120 + Math.random() * 120;
+	}
+	// Update obstacles
+	for (var i = obstacles.length - 1; i >= 0; i--) {
+		var obstacle = obstacles[i];
+		obstacle.speed = gameSpeed;
+		if (obstacle.x < -100) {
+			obstacle.destroy();
+			obstacles.splice(i, 1);
+			continue;
+		}
+		// Collision detection with cat
+		if (cat.intersects(obstacle)) {
+			// Slow down temporarily when hitting obstacle
+			gameSpeed = Math.max(gameSpeed * 0.7, 4);
+			LK.effects.flashObject(cat, 0xFF0000, 500);
+		}
+	}
+	// Update fish
+	for (var j = fishes.length - 1; j >= 0; j--) {
+		var fish = fishes[j];
+		fish.speed = gameSpeed;
+		if (fish.x < -50) {
+			fish.destroy();
+			fishes.splice(j, 1);
+			continue;
+		}
+		// Collection detection
+		if (!fish.collected && cat.intersects(fish)) {
+			fish.collected = true;
+			fishCollected++;
+			fishText.setText('Fish: ' + fishCollected);
+			LK.setScore(LK.getScore() + 10);
+			LK.getSound('collect').play();
+			// Visual effect
+			tween(fish, {
+				alpha: 0,
+				scaleX: 2,
+				scaleY: 2
+			}, {
+				duration: 300,
+				onFinish: function onFinish() {
+					fish.destroy();
+				}
+			});
+			fishes.splice(j, 1);
+		}
+	}
+	// Update final score
+	LK.setScore(Math.floor(distance) + fishCollected * 10);
+};
\ No newline at end of file