Kudos on your project, you really made this look less like a homebrew and more like a production machine. If you truly are doing custom code, you could actually really have some fun features in there. In a two player game, the player with the higher score on ball two could be declared the winner and the game ends. At the end of any game where you didn't get a high score, you could have the game make a statement like "Congrats you got the highest score ever". Maybe a "tax returns" wizard mode so incredibly difficult to achieve, no one ever sees it?

Again, I think you did an amazing job with theme, execution is excellent. You clearly have a sense of humor in your presentation, would be awesome to see a lot of tongue in cheek references to all sorts of different things.