var Particle = Container.expand(function () {
	var self = Container.call(this);
	var particleGraphics = self.createAsset('particle', 'Particle Graphics', .5, .5);
	self.speed = Math.random() * 5 + 2;
	self.direction = Math.random() * Math.PI * 2;
	self.alpha = 1;
	self.move = function () {
		self.x += Math.cos(self.direction) * self.speed;
		self.y += Math.sin(self.direction) * self.speed;
		self.alpha -= 0.02;
		if (self.alpha <= 0) self.destroy();
	};
});
var Projectile = Container.expand(function () {
	var self = Container.call(this);
	var projectileGraphics = self.createAsset('projectile', 'Projectile Graphics', .5, .5);
	self.speed = 14;
	self.direction = '';
	self.move = function () {
		if (self.direction === 'up') self.y -= self.speed;
		if (self.direction === 'down') self.y += self.speed;
		if (self.direction === 'left') self.x -= self.speed;
		if (self.direction === 'right') self.x += self.speed;
		if (self.x < -self.width / 2 || self.x > 2048 + self.width / 2 || self.y < -self.height / 2 || self.y > 2732 + self.height / 2) self.destroy();
	};
});
var Target = Container.expand(function () {
	var self = Container.call(this);
	var targetGraphics = self.createAsset('target', 'Target Graphics', .5, .5);
	self.speed = 7;
	self.direction = Math.random() < 0.5 ? 'horizontal' : 'vertical';
	self.move = function () {
		if (self.direction === 'horizontal') {
			self.x += self.speed;
			if (self.x > 2048) self.x = 0;
			if (self.x < 0) self.x = 2048;
		} else {
			self.y += self.speed;
			if (self.y > 2732) self.y = 0;
			if (self.y < 0) self.y = 2732;
		}
	};
});
var Game = Container.expand(function () {
	var self = Container.call(this);
	var instructionsText = new Text2('Tap anywhere to create explosions.\nDestroy \'em all!', {
		size: 70,
		fill: '#ffffff',
		align: 'center'
	});
	instructionsText.anchor.set(0.5, 0.5);
	instructionsText.x = 2048 / 2 - 2048 / 7;
	instructionsText.y = 1000;
	LK.gui.addChild(instructionsText);
	self.level = 1;
	self.touchesLeft = 5;
	self.targetsLeft = 5;
	self.points = 0;
	var levelText = new Text2('Level: ' + self.level, {
		size: 70,
		fill: "#ffffff"
	});
	levelText.anchor.set(0, 1);
	LK.gui.bottomLeft.addChild(levelText);
	var touchesLeftText = new Text2('Touches Left: ' + self.touchesLeft, {
		size: 70,
		fill: "#ffffff"
	});
	touchesLeftText.anchor.set(0, 0);
	touchesLeftText.y = 50;
	touchesLeftText.x = 140;
	LK.gui.topCenter.addChild(touchesLeftText);
	var pointsText = new Text2('Score: ' + self.points, {
		size: 70,
		fill: "#ffffff"
	});
	pointsText.anchor.set(0, 0);
	pointsText.x = 140;
	pointsText.y = 140;
	LK.gui.topCenter.addChild(pointsText);
	var targetsLeftText = new Text2('Targets Left: ' + self.targetsLeft, {
		size: 70,
		fill: "#ffffff"
	});
	var projectiles = [];
	var numberOfProjectiles = 0;
	var enemies = [];
	var targets = [];
	var touchesLeft = 5;
	for (var i = 0; i < 5; i++) {
		var target = new Target();
		target.x = Math.random() * (2048 - 100) + 50;
		target.y = Math.random() * (2732 - 100) + 50;
		targets.push(target);
		self.addChild(target);
	}
	var spawnEnemy = function () {
		var enemy = new Enemy();
		enemy.x = Math.random() * 2048;
		enemy.y = 0;
		enemies.push(enemy);
		self.addChild(enemy);
	};
	var fireEnemyBullet = function (enemy) {
		var bullet = new EnemyBullet();
		bullet.x = enemy.x;
		bullet.y = enemy.y;
		enemyBullets.push(bullet);
		self.addChild(bullet);
	};
	LK.on('tick', function () {
		console.log(projectiles.length);
		if (self.touchesLeft === 0 && projectiles.length === 0) LK.showGameOver();
		for (var i = 0; i < targets.length; i++) {
			targets[i].move();
		}
		for (var i = 0; i < self.children.length; i++) {
			if (self.children[i] instanceof Projectile || self.children[i] instanceof Particle) {
				self.children[i].move();
				for (var j = 0; j < targets.length; j++) {
					if (self.children[i] && targets[j] && self.children[i].intersects(targets[j])) {
						var directions = ['up', 'down', 'left', 'right'];
						for (var k = 0; k < 4; k++) {
							var newProjectile = new Projectile();
							newProjectile.x = targets[j].x;
							newProjectile.y = targets[j].y;
							newProjectile.direction = directions[k];
							projectiles.push(newProjectile);
							self.addChild(newProjectile);
						}
						var index = projectiles.indexOf(self.children[i]);
						if (index > -1) {
							projectiles.splice(index, 1);
							numberOfProjectiles--;
							self.children[i].destroy();
						}
						targets[j].destroy();
						self.targetsLeft--;
						self.points += 10;
						pointsText.setText('Score: ' + self.points);
						targets.splice(j, 1);
						targetsLeftText.setText('Targets Left: ' + self.targetsLeft);
						if (self.targetsLeft <= 0) {
							self.level++;
							for (var i = self.children.length - 1; i >= 0; i--) {
								if (self.children[i] instanceof Projectile) {
									self.children[i].destroy();
								}
							}
							var levelUpText = new Text2('Level ' + self.level + '!', {
								size: 70,
								fill: '#ffffff',
								align: 'center'
							});
							levelUpText.anchor.set(0.5, 0.5);
							levelUpText.x = 700;
							levelUpText.y = 1000;
							LK.gui.addChild(levelUpText);
							var blinkInterval = LK.setInterval(function () {
								levelUpText.visible = !levelUpText.visible;
							}, 150);
							LK.setTimeout(function () {
								LK.clearInterval(blinkInterval);
								levelUpText.destroy();
								levelText.setText('Level: ' + self.level);
							}, 1500);
							LK.setTimeout(function () {
								for (var i = 0; i < 5 + self.level; i++) {
									var target = new Target();
									target.x = Math.random() * 2048;
									target.y = Math.random() * 2732;
									targets.push(target);
									self.addChild(target);
								}
								self.targetsLeft = 5 + self.level;
								targetsLeftText.setText('Targets Left: ' + self.targetsLeft);
								self.touchesLeft += 1;
								touchesLeftText.setText('Touches Left: ' + self.touchesLeft);
							}, 2000);
						}
					}
				}
			}
		}
	});
	stage.on('down', function (obj) {
		if (instructionsText) {
			instructionsText.setText('');
		}
		if (self.touchesLeft > 0) {
			var pos = obj.event.getLocalPosition(self);
			var directions = ['up', 'down', 'left', 'right'];
			for (var i = 0; i < 4; i++) {
				var projectile = new Projectile();
				projectile.x = pos.x;
				projectile.y = pos.y;
				projectile.direction = directions[i];
				numberOfProjectiles++;
				projectile.on('destroy', function () {
					var index = projectiles.indexOf(projectile);
					if (index > -1) {
						projectiles.splice(index, 1);
					}
				});
				self.addChild(projectile);
				projectiles.push(projectile);
			}
			self.touchesLeft--;
			touchesLeftText.setText('Touches Left: ' + self.touchesLeft);
		}
	});
});

===================================================================
--- original.js
+++ change.js
@@ -20,9 +20,9 @@
 		if (self.direction === 'up') self.y -= self.speed;
 		if (self.direction === 'down') self.y += self.speed;
 		if (self.direction === 'left') self.x -= self.speed;
 		if (self.direction === 'right') self.x += self.speed;
-		if (self.x < -self.width || self.x > 2048 || self.y < -self.height || self.y > 2732) self.destroy();
+		if (self.x < -self.width / 2 || self.x > 2048 + self.width / 2 || self.y < -self.height / 2 || self.y > 2732 + self.height / 2) self.destroy();
 	};
 });
 var Target = Container.expand(function () {
 	var self = Container.call(this);