===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,203 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var Fish = Container.expand(function () {
+	var self = Container.call(this);
+	var fishGraphics = self.attachAsset('fish', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.velocityY = 0;
+	self.gravity = 0.8;
+	self.swimForce = -12;
+	self.swim = function () {
+		self.velocityY = self.swimForce;
+		LK.getSound('swim').play();
+		// Animate swim effect
+		tween(fishGraphics, {
+			rotation: -0.3
+		}, {
+			duration: 150,
+			easing: tween.easeOut
+		});
+		tween(fishGraphics, {
+			rotation: 0
+		}, {
+			duration: 300,
+			easing: tween.easeIn
+		});
+	};
+	self.update = function () {
+		// Apply gravity
+		self.velocityY += self.gravity;
+		self.y += self.velocityY;
+		// Rotate fish based on velocity
+		fishGraphics.rotation = Math.max(-0.5, Math.min(0.5, self.velocityY * 0.05));
+		// Keep fish within screen bounds
+		if (self.y < 50) {
+			self.y = 50;
+			self.velocityY = 0;
+		}
+		if (self.y > 2400) {
+			self.y = 2400;
+			self.velocityY = 0;
+		}
+	};
+	return self;
+});
+var Obstacle = Container.expand(function () {
+	var self = Container.call(this);
+	var obstacleGraphics = self.attachAsset('shark', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = -4;
+	self.passed = false;
+	self.update = function () {
+		self.x += self.speed;
+	};
+	return self;
+});
+var SeaDecoration = Container.expand(function (type) {
+	var self = Container.call(this);
+	var decorationGraphics = self.attachAsset(type, {
+		anchorX: 0.5,
+		anchorY: 1.0
+	});
+	self.speed = -1;
+	self.update = function () {
+		self.x += self.speed;
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
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+	backgroundColor: 0x006994
+});
+
+/**** 
+* Game Code
+****/ 
+// Game variables
+var fish;
+var obstacles = [];
+var decorations = [];
+var spawnTimer = 0;
+var decorationTimer = 0;
+var gameSpeed = 1;
+var lastObstacleY = 0;
+// Create ocean floor
+var oceanFloor = game.addChild(LK.getAsset('oceanFloor', {
+	anchorX: 0,
+	anchorY: 1.0,
+	x: 0,
+	y: 2732
+}));
+// Create fish
+fish = game.addChild(new Fish());
+fish.x = 300;
+fish.y = 1366;
+// Create score display
+var scoreTxt = new Text2('0', {
+	size: 80,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0, 0);
+LK.gui.topRight.addChild(scoreTxt);
+scoreTxt.x = -150; // Offset from right edge
+// Spawn obstacle function
+function spawnObstacle() {
+	var obstacle = new Obstacle();
+	obstacle.x = 2200;
+	// Random Y position, but not too close to last obstacle
+	var minY = 200;
+	var maxY = 2200;
+	var targetY;
+	do {
+		targetY = minY + Math.random() * (maxY - minY);
+	} while (Math.abs(targetY - lastObstacleY) < 300);
+	obstacle.y = targetY;
+	lastObstacleY = targetY;
+	obstacles.push(obstacle);
+	game.addChild(obstacle);
+}
+// Spawn decoration function
+function spawnDecoration() {
+	var decorationType = Math.random() > 0.5 ? 'seaweed' : 'coral';
+	var decoration = new SeaDecoration(decorationType);
+	decoration.x = 2200;
+	decoration.y = 2732 - 150; // Near ocean floor
+	decorations.push(decoration);
+	game.addChild(decoration);
+}
+// Game input handling
+game.down = function (x, y, obj) {
+	fish.swim();
+};
+// Main game update loop
+game.update = function () {
+	// Update spawn timers
+	spawnTimer++;
+	decorationTimer++;
+	// Spawn obstacles
+	var spawnRate = Math.max(60, 120 - Math.floor(LK.ticks / 1800)); // Increase difficulty over time
+	if (spawnTimer >= spawnRate) {
+		spawnObstacle();
+		spawnTimer = 0;
+	}
+	// Spawn decorations less frequently
+	if (decorationTimer >= 180) {
+		spawnDecoration();
+		decorationTimer = 0;
+	}
+	// Update obstacles
+	for (var i = obstacles.length - 1; i >= 0; i--) {
+		var obstacle = obstacles[i];
+		// Check if obstacle passed fish (for scoring)
+		if (!obstacle.passed && obstacle.x < fish.x) {
+			obstacle.passed = true;
+			LK.setScore(LK.getScore() + 1);
+			scoreTxt.setText(LK.getScore());
+		}
+		// Remove obstacles that are off screen
+		if (obstacle.x < -150) {
+			obstacle.destroy();
+			obstacles.splice(i, 1);
+			continue;
+		}
+		// Collision detection
+		if (fish.intersects(obstacle)) {
+			LK.getSound('collision').play();
+			LK.effects.flashScreen(0xFF0000, 1000);
+			LK.showGameOver();
+			return;
+		}
+	}
+	// Update decorations
+	for (var j = decorations.length - 1; j >= 0; j--) {
+		var decoration = decorations[j];
+		// Remove decorations that are off screen
+		if (decoration.x < -100) {
+			decoration.destroy();
+			decorations.splice(j, 1);
+		}
+	}
+	// Check if fish hit ocean floor
+	if (fish.y >= 2600) {
+		LK.getSound('collision').play();
+		LK.effects.flashScreen(0xFF0000, 1000);
+		LK.showGameOver();
+	}
+	// Increase game speed gradually
+	if (LK.ticks % 600 == 0) {
+		gameSpeed += 0.1;
+	}
+};
\ No newline at end of file