===================================================================
--- original.js
+++ change.js
@@ -59,8 +59,12 @@
 game.down = function (x, y, obj) {
 	balls.forEach(function (ball) {
 		if (ball.intersects(obj)) {
 			ball.pop();
+			balls = balls.filter(function (item) {
+				return item !== ball;
+			}); // remove the ball from the array
+			ball.destroy(); // destroy the ball
 		}
 	});
 };
 // Update function to move balls