===================================================================
--- original.js
+++ change.js
@@ -41,14 +41,17 @@
 	var self = Container.call(this);
 	var enemyGraphics = self.createAsset('enemy', 'Enemy character', 0.5, 0.5);
 	self.speed = 2;
 	self.move = function () {
-		// Movement towards the hero's position
-		var dx = hero.x - self.x;
-		var dy = hero.y - self.y;
-		var angle = Math.atan2(dy, dx);
-		self.x += Math.cos(angle) * self.speed;
-		self.y += Math.sin(angle) * self.speed;
+		// Inverse movement to simulate map scrolling
+		self.move = function (touchPosition) {
+			if (touchPosition) {
+				var dx = (2048 / 2 - touchPosition.x) * 0.1;
+				var dy = (2732 / 2 - touchPosition.y) * 0.1;
+				self.x += dx;
+				self.y += dy;
+			}
+		};
 	};
 });
 // Bullet class
 var Bullet = Container.expand(function () {
@@ -131,13 +134,8 @@
 
 // Game tick event
 LK.on('tick', function () {
 	// Move the hero towards the touch position
-	if (game.touchPosition) {
-		hero.x += (game.touchPosition.x - hero.x) * 0.1;
-		hero.y += (game.touchPosition.y - hero.y) * 0.1;
-	}
-
 	// Move bullets and check for collisions with enemies
 	for (var i = bullets.length - 1; i >= 0; i--) {
 		bullets[i].move();
 		// Check for bullet-enemy collisions
@@ -163,9 +161,9 @@
 	}
 
 	// Move enemies
 	for (var j = enemies.length - 1; j >= 0; j--) {
-		enemies[j].move();
+		enemies[j].move(game.touchPosition);
 		if (enemies[j].intersects(hero)) {
 			hero.lives -= 1; // Decrease hero's lives by one
 			hero.updateLives(); // Update the lives display
 			LK.effects.flashScreen(0xff0000, 500); // Flash screen red for half a second