===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,265 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var Enemy = Container.expand(function () {
+	var self = Container.call(this);
+	var enemyGraphics = self.attachAsset('enemy', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speedX = (Math.random() - 0.5) * 3;
+	self.speedY = (Math.random() - 0.5) * 3;
+	self.health = 1;
+	self.update = function () {
+		self.x += self.speedX;
+		self.y += self.speedY;
+		// Bounce off screen edges
+		if (self.x < 30 || self.x > 2018) {
+			self.speedX *= -1;
+		}
+		if (self.y < 30 || self.y > 2702) {
+			self.speedY *= -1;
+		}
+	};
+	return self;
+});
+var Ninja = Container.expand(function () {
+	var self = Container.call(this);
+	var ninjaGraphics = self.attachAsset('ninja', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.velocityY = 0;
+	self.onGround = false;
+	self.gravity = 0.8;
+	self.jumpPower = -18;
+	self.health = 3;
+	self.attackCooldown = 0;
+	self.update = function () {
+		// Apply gravity
+		if (!self.onGround) {
+			self.velocityY += self.gravity;
+		}
+		self.y += self.velocityY;
+		// Reset ground state
+		self.onGround = false;
+		// Check platform collisions
+		for (var i = 0; i < platforms.length; i++) {
+			var platform = platforms[i];
+			if (self.intersects(platform) && self.velocityY > 0) {
+				var platformTop = platform.y - platform.height / 2;
+				var ninjaBottom = self.y + self.height / 2;
+				if (ninjaBottom > platformTop - 20) {
+					self.y = platformTop - self.height / 2;
+					self.velocityY = 0;
+					self.onGround = true;
+					break;
+				}
+			}
+		}
+		// Fall off screen check
+		if (self.y > 2800) {
+			LK.showGameOver();
+		}
+		// Reduce attack cooldown
+		if (self.attackCooldown > 0) {
+			self.attackCooldown--;
+		}
+	};
+	self.jump = function () {
+		if (self.onGround) {
+			self.velocityY = self.jumpPower;
+			self.onGround = false;
+			LK.getSound('jump').play();
+		}
+	};
+	self.attack = function (targetX, targetY) {
+		if (self.attackCooldown <= 0) {
+			var projectile = new Projectile();
+			projectile.x = self.x;
+			projectile.y = self.y;
+			var dx = targetX - self.x;
+			var dy = targetY - self.y;
+			var distance = Math.sqrt(dx * dx + dy * dy);
+			projectile.speedX = dx / distance * 12;
+			projectile.speedY = dy / distance * 12;
+			projectiles.push(projectile);
+			game.addChild(projectile);
+			self.attackCooldown = 20;
+			LK.getSound('attack').play();
+		}
+	};
+	return self;
+});
+var Platform = Container.expand(function () {
+	var self = Container.call(this);
+	var platformGraphics = self.attachAsset('platform', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	return self;
+});
+var Projectile = Container.expand(function () {
+	var self = Container.call(this);
+	var projectileGraphics = self.attachAsset('projectile', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speedX = 0;
+	self.speedY = 0;
+	self.lifetime = 0;
+	self.update = function () {
+		self.x += self.speedX;
+		self.y += self.speedY;
+		self.lifetime++;
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x87ceeb
+});
+
+/**** 
+* Game Code
+****/ 
+var ninja = new Ninja();
+var platforms = [];
+var enemies = [];
+var projectiles = [];
+var enemySpawnTimer = 0;
+var difficultyTimer = 0;
+// Create score display
+var scoreTxt = new Text2('0', {
+	size: 80,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreTxt);
+// Generate random platforms
+function generatePlatforms() {
+	platforms = [];
+	// Ground platform
+	var groundPlatform = new Platform();
+	groundPlatform.x = 1024;
+	groundPlatform.y = 2600;
+	groundPlatform.width = 400;
+	platforms.push(groundPlatform);
+	game.addChild(groundPlatform);
+	// Random platforms
+	for (var i = 0; i < 8; i++) {
+		var platform = new Platform();
+		platform.x = Math.random() * 1600 + 200;
+		platform.y = 2400 - i * 250 - Math.random() * 100;
+		platform.width = 150 + Math.random() * 100;
+		platforms.push(platform);
+		game.addChild(platform);
+	}
+}
+function spawnEnemy() {
+	var enemy = new Enemy();
+	// Spawn from random edge
+	var side = Math.floor(Math.random() * 4);
+	switch (side) {
+		case 0:
+			// Top
+			enemy.x = Math.random() * 2048;
+			enemy.y = -30;
+			break;
+		case 1:
+			// Right
+			enemy.x = 2078;
+			enemy.y = Math.random() * 2732;
+			break;
+		case 2:
+			// Bottom
+			enemy.x = Math.random() * 2048;
+			enemy.y = 2762;
+			break;
+		case 3:
+			// Left
+			enemy.x = -30;
+			enemy.y = Math.random() * 2732;
+			break;
+	}
+	enemies.push(enemy);
+	game.addChild(enemy);
+}
+// Initialize game elements
+generatePlatforms();
+ninja.x = 1024;
+ninja.y = 2500;
+game.addChild(ninja);
+// Touch controls
+game.down = function (x, y, obj) {
+	// If touching near ninja, jump
+	var dx = x - ninja.x;
+	var dy = y - ninja.y;
+	var distance = Math.sqrt(dx * dx + dy * dy);
+	if (distance < 150) {
+		ninja.jump();
+	} else {
+		// Attack in direction of touch
+		ninja.attack(x, y);
+	}
+};
+game.update = function () {
+	// Spawn enemies
+	enemySpawnTimer++;
+	difficultyTimer++;
+	var spawnRate = Math.max(180 - Math.floor(difficultyTimer / 300), 60);
+	if (enemySpawnTimer >= spawnRate) {
+		spawnEnemy();
+		enemySpawnTimer = 0;
+	}
+	// Check projectile vs enemy collisions
+	for (var p = projectiles.length - 1; p >= 0; p--) {
+		var projectile = projectiles[p];
+		// Remove old projectiles
+		if (projectile.lifetime > 180 || projectile.x < -50 || projectile.x > 2098 || projectile.y < -50 || projectile.y > 2782) {
+			projectile.destroy();
+			projectiles.splice(p, 1);
+			continue;
+		}
+		// Check enemy hits
+		for (var e = enemies.length - 1; e >= 0; e--) {
+			var enemy = enemies[e];
+			if (projectile.intersects(enemy)) {
+				// Hit enemy
+				LK.setScore(LK.getScore() + 10);
+				scoreTxt.setText(LK.getScore());
+				LK.getSound('enemyHit').play();
+				LK.effects.flashObject(enemy, 0xffffff, 200);
+				enemy.destroy();
+				enemies.splice(e, 1);
+				projectile.destroy();
+				projectiles.splice(p, 1);
+				break;
+			}
+		}
+	}
+	// Check ninja vs enemy collisions
+	for (var e = enemies.length - 1; e >= 0; e--) {
+		var enemy = enemies[e];
+		if (ninja.intersects(enemy)) {
+			ninja.health--;
+			LK.effects.flashObject(ninja, 0xff0000, 500);
+			enemy.destroy();
+			enemies.splice(e, 1);
+			if (ninja.health <= 0) {
+				LK.showGameOver();
+			}
+		}
+	}
+	// Keep ninja on screen horizontally
+	if (ninja.x < 40) ninja.x = 40;
+	if (ninja.x > 2008) ninja.x = 2008;
+};
\ No newline at end of file