/**** 
* Classes
****/ 
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -5;
	self.update = function () {
		self.y += self.speed;
	};
});
//<Assets used in the game will automatically appear here>
//<Write imports for supported plugins here>
// Class for the shooting ball
var ShootingBall = Container.expand(function () {
	var self = Container.call(this);
	var ballGraphics = self.attachAsset('shootingBall', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		if (LK.ticks % 30 == 0) {
			// Every half a second
			var bullet = new Bullet();
			bullet.x = self.x;
			bullet.y = self.y;
			game.addChild(bullet);
		}
	};
});
// Class for the small balls
var SmallBall = Container.expand(function () {
	var self = Container.call(this);
	var ballGraphics = self.attachAsset('smallBall', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 3;
	self.update = function () {
		self.y += self.speed;
		if (self.y > 2732) {
			self.y = 0; // Reset position if it goes off screen
		}
	};
});

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

/**** 
* Game Code
****/ 
var shootingBall = game.addChild(new ShootingBall());
shootingBall.x = 2048 / 2;
shootingBall.y = 2732 / 2;
var smallBalls = [];
for (var i = 0; i < 5; i++) {
	var smallBall = new SmallBall();
	smallBall.x = Math.random() * 2048;
	smallBall.y = Math.random() * 2732;
	smallBalls.push(smallBall);
	game.addChild(smallBall);
}
var dragNode = null;
//Declare method for handling move events on game.
function handleMove(x, y, obj) {
	//Get event position in relation to game object
	if (dragNode) {
		dragNode.x = x;
		dragNode.y = y;
	}
}
//Mouse or touch move on game object. LK returns complex event objects. Please be aware of this.
game.move = handleMove;
//Allow dragging of the shootingBall to start from anywhere.
game.down = function (x, y, obj) {
	//Set drag node to shootingBall. 
	dragNode = shootingBall;
	//Also call move handler right away to make effect instant.
	handleMove(x, y, obj);
};
//Mouse or touch up on game object
game.up = function (x, y, obj) {
	dragNode = null;
};
game.update = function () {
	for (var i = smallBalls.length - 1; i >= 0; i--) {
		for (var j = bullets.length - 1; j >= 0; j--) {
			if (bullets[j].intersects(smallBalls[i])) {
				smallBalls[i].destroy();
				smallBalls.splice(i, 1);
				bullets[j].destroy();
				bullets.splice(j, 1);
				if (smallBalls.length === 0) {
					LK.showGameOver(); // Win condition
				}
				break;
			}
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -1,7 +1,18 @@
 /**** 
 * Classes
 ****/ 
+var Bullet = Container.expand(function () {
+	var self = Container.call(this);
+	var bulletGraphics = self.attachAsset('bullet', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = -5;
+	self.update = function () {
+		self.y += self.speed;
+	};
+});
 //<Assets used in the game will automatically appear here>
 //<Write imports for supported plugins here>
 // Class for the shooting ball
 var ShootingBall = Container.expand(function () {
@@ -10,9 +21,15 @@
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
 	self.update = function () {
-		// Shooting ball logic if needed
+		if (LK.ticks % 30 == 0) {
+			// Every half a second
+			var bullet = new Bullet();
+			bullet.x = self.x;
+			bullet.y = self.y;
+			game.addChild(bullet);
+		}
 	};
 });
 // Class for the small balls
 var SmallBall = Container.expand(function () {
@@ -74,13 +91,18 @@
 	dragNode = null;
 };
 game.update = function () {
 	for (var i = smallBalls.length - 1; i >= 0; i--) {
-		if (shootingBall.intersects(smallBalls[i])) {
-			smallBalls[i].destroy();
-			smallBalls.splice(i, 1);
-			if (smallBalls.length === 0) {
-				LK.showGameOver(); // Win condition
+		for (var j = bullets.length - 1; j >= 0; j--) {
+			if (bullets[j].intersects(smallBalls[i])) {
+				smallBalls[i].destroy();
+				smallBalls.splice(i, 1);
+				bullets[j].destroy();
+				bullets.splice(j, 1);
+				if (smallBalls.length === 0) {
+					LK.showGameOver(); // Win condition
+				}
+				break;
 			}
 		}
 	}
 };
\ No newline at end of file