/**** 
* 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: 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);
};

===================================================================
--- original.js
+++ change.js