/**** 
* Classes
****/ 
// Bullet class representing the bullets fired by the player
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -10;
	self.update = function () {
		self.y += self.speed;
	};
});
//<Assets used in the game will automatically appear here>
//<Write imports for supported plugins here>
// Target class representing the targets to be hit
var Target = Container.expand(function () {
	var self = Container.call(this);
	var targetGraphics = self.attachAsset('target', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 2;
	self.update = function () {
		self.y += self.speed;
		if (self.y > 2732) {
			self.y = -targetGraphics.height;
			self.x = Math.random() * 2048;
		}
	};
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000 //Init game with black background 
});

/**** 
* Game Code
****/ 
// Initialize variables
var score = 0;
var bullets = [];
var targets = [];
var scoreTxt = new Text2('0', {
	size: 150,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Create targets
for (var i = 0; i < 5; i++) {
	var target = new Target();
	target.x = Math.random() * 2048;
	target.y = Math.random() * 2732;
	targets.push(target);
	game.addChild(target);
}
// Handle shooting
game.down = function (x, y, obj) {
	if (y > 2732 * 0.8) {
		var newBullet = new Bullet();
		newBullet.x = x;
		newBullet.y = 2732;
		bullets.push(newBullet);
		game.addChild(newBullet);
	}
};
// Update game state
game.update = function () {
	for (var i = bullets.length - 1; i >= 0; i--) {
		bullets[i].update();
		if (bullets[i].y < -50) {
			bullets[i].destroy();
			bullets.splice(i, 1);
		}
	}
	for (var j = targets.length - 1; j >= 0; j--) {
		targets[j].update();
		for (var k = bullets.length - 1; k >= 0; k--) {
			if (bullets[k].intersects(targets[j])) {
				score += 1;
				scoreTxt.setText(score);
				bullets[k].destroy();
				bullets.splice(k, 1);
				targets[j].y = -targets[j].height;
				targets[j].x = Math.random() * 2048;
			}
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -61,12 +61,12 @@
 	game.addChild(target);
 }
 // Handle shooting
 game.down = function (x, y, obj) {
-	if (obj instanceof Bullet) {
+	if (y > 2732 * 0.8) {
 		var newBullet = new Bullet();
 		newBullet.x = x;
-		newBullet.y = y;
+		newBullet.y = 2732;
 		bullets.push(newBullet);
 		game.addChild(newBullet);
 	}
 };