I'm having fun picking a table and playing it into the ground and getting all the achievements/upgrades, etc...

I'm now taking on Epic Quest. All I have left, aside from whatever the big achievement it, are my ball save upgrades.

I'm having a terrible time figuring out what I can do to trigger the ball save upgrade count. Ball save is triggered whenever I hit the smash flag enough times to launch another ball, but that doesn't seem to "count" towards the ball save upgrade...

What am I missing?

Thanks.