===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,262 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var Building = Container.expand(function () {
+	var self = Container.call(this);
+	var buildingGraphics = self.attachAsset('building', {
+		anchorX: 0.5,
+		anchorY: 1.0
+	});
+	self.depth = Math.random() * 0.5 + 0.5;
+	buildingGraphics.scaleX = self.depth;
+	buildingGraphics.scaleY = self.depth;
+	buildingGraphics.alpha = 0.3 + self.depth * 0.7;
+	return self;
+});
+var Citizen = Container.expand(function () {
+	var self = Container.call(this);
+	var citizenGraphics = self.attachAsset('citizen', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 2;
+	self.saved = false;
+	self.fallSpeed = 3;
+	self.update = function () {
+		if (!self.saved) {
+			self.y += self.fallSpeed;
+		}
+	};
+	return self;
+});
+var Cloud = Container.expand(function () {
+	var self = Container.call(this);
+	var cloudGraphics = self.attachAsset('cloud', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 1;
+	cloudGraphics.alpha = 0.6;
+	self.update = function () {
+		self.x -= self.speed;
+		if (self.x < -100) {
+			self.x = 2148;
+		}
+	};
+	return self;
+});
+var Superman = Container.expand(function () {
+	var self = Container.call(this);
+	var supermanGraphics = self.attachAsset('superman', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 8;
+	self.flying = false;
+	self.targetX = 0;
+	self.targetY = 0;
+	self.flyTo = function (x, y) {
+		self.targetX = x;
+		self.targetY = y;
+		self.flying = true;
+	};
+	self.update = function () {
+		if (self.flying) {
+			var dx = self.targetX - self.x;
+			var dy = self.targetY - self.y;
+			var distance = Math.sqrt(dx * dx + dy * dy);
+			if (distance > 10) {
+				self.x += dx / distance * self.speed;
+				self.y += dy / distance * self.speed;
+			} else {
+				self.flying = false;
+			}
+		}
+	};
+	return self;
+});
+var Villain = Container.expand(function () {
+	var self = Container.call(this);
+	var villainGraphics = self.attachAsset('villain', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 4;
+	self.direction = 1;
+	self.defeated = false;
+	self.update = function () {
+		if (!self.defeated) {
+			self.x += self.speed * self.direction;
+			if (self.x < 100 || self.x > 1948) {
+				self.direction *= -1;
+			}
+		}
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x87CEEB
+});
+
+/**** 
+* Game Code
+****/ 
+game.setBackgroundColor(0x87CEEB);
+// Game variables
+var superman;
+var citizens = [];
+var villains = [];
+var buildings = [];
+var clouds = [];
+var gameSpeed = 1;
+var citizenSpawnTimer = 0;
+var villainSpawnTimer = 0;
+var difficultyTimer = 0;
+// UI Elements
+var scoreText = new Text2('Puntuación: 0', {
+	size: 60,
+	fill: 0xFFFFFF
+});
+scoreText.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreText);
+var livesText = new Text2('Ciudadanos Salvados: 0', {
+	size: 50,
+	fill: 0xFFFFFF
+});
+livesText.anchor.set(0, 0);
+livesText.x = 120;
+livesText.y = 120;
+LK.gui.topLeft.addChild(livesText);
+// Initialize Superman
+superman = game.addChild(new Superman());
+superman.x = 1024;
+superman.y = 1800;
+// Create background buildings
+for (var i = 0; i < 8; i++) {
+	var building = game.addChild(new Building());
+	building.x = i * 256 + 128;
+	building.y = 2732;
+	buildings.push(building);
+}
+// Create background clouds
+for (var i = 0; i < 5; i++) {
+	var cloud = game.addChild(new Cloud());
+	cloud.x = i * 400 + 200;
+	cloud.y = 300 + Math.random() * 400;
+	clouds.push(cloud);
+}
+// Game event handlers
+game.down = function (x, y, obj) {
+	superman.flyTo(x, y);
+};
+game.move = function (x, y, obj) {
+	superman.flyTo(x, y);
+};
+// Spawn functions
+function spawnCitizen() {
+	var citizen = game.addChild(new Citizen());
+	citizen.x = Math.random() * 1848 + 100;
+	citizen.y = 100;
+	citizens.push(citizen);
+}
+function spawnVillain() {
+	var villain = game.addChild(new Villain());
+	villain.x = Math.random() * 1848 + 100;
+	villain.y = Math.random() * 1000 + 500;
+	villains.push(villain);
+}
+// Main game loop
+game.update = function () {
+	// Update timers
+	citizenSpawnTimer++;
+	villainSpawnTimer++;
+	difficultyTimer++;
+	// Spawn citizens
+	if (citizenSpawnTimer > 120 / gameSpeed) {
+		spawnCitizen();
+		citizenSpawnTimer = 0;
+	}
+	// Spawn villains
+	if (villainSpawnTimer > 180 / gameSpeed) {
+		spawnVillain();
+		villainSpawnTimer = 0;
+	}
+	// Increase difficulty
+	if (difficultyTimer > 1800) {
+		gameSpeed += 0.1;
+		difficultyTimer = 0;
+	}
+	// Update citizens
+	for (var i = citizens.length - 1; i >= 0; i--) {
+		var citizen = citizens[i];
+		// Check if citizen fell off screen
+		if (citizen.y > 2732) {
+			citizen.destroy();
+			citizens.splice(i, 1);
+			continue;
+		}
+		// Check collision with Superman
+		if (superman.intersects(citizen) && !citizen.saved) {
+			citizen.saved = true;
+			LK.setScore(LK.getScore() + 10);
+			scoreText.setText('Puntuación: ' + LK.getScore());
+			livesText.setText('Ciudadanos Salvados: ' + Math.floor(LK.getScore() / 10));
+			// Visual effect
+			LK.effects.flashObject(citizen, 0x00ff00, 500);
+			LK.getSound('rescue').play();
+			// Remove citizen after brief delay
+			tween(citizen, {
+				alpha: 0
+			}, {
+				duration: 500,
+				onFinish: function onFinish() {
+					citizen.destroy();
+				}
+			});
+			citizens.splice(i, 1);
+		}
+	}
+	// Update villains
+	for (var i = villains.length - 1; i >= 0; i--) {
+		var villain = villains[i];
+		// Check collision with Superman
+		if (superman.intersects(villain) && !villain.defeated) {
+			villain.defeated = true;
+			LK.setScore(LK.getScore() + 25);
+			scoreText.setText('Puntuación: ' + LK.getScore());
+			// Visual effect
+			LK.effects.flashObject(villain, 0xff0000, 800);
+			LK.getSound('defeat').play();
+			// Remove villain after brief delay
+			tween(villain, {
+				alpha: 0,
+				scaleX: 0.1,
+				scaleY: 0.1
+			}, {
+				duration: 800,
+				onFinish: function onFinish() {
+					villain.destroy();
+				}
+			});
+			villains.splice(i, 1);
+		}
+	}
+	// Check win condition
+	if (LK.getScore() >= 500) {
+		LK.showYouWin();
+	}
+	// Update UI
+	scoreText.setText('Puntuación: ' + LK.getScore());
+	livesText.setText('Ciudadanos Salvados: ' + Math.floor(LK.getScore() / 10));
+};
+// Start background music
+LK.playMusic('cityTheme');
\ No newline at end of file