I was giving you the benefit of the doubt. [starts struggling to keep his composure about halfway through the bowl, and the question is a more than welcome interruption]

Well, all mainstream slot machines are manufactured by Kanto's Silph Company. They're all designed with a little kink that allows Game Corner owners to show them off and lure hapless gamblers in with the promise of riches. Tugging the lever just a bit to the right will queue up an instant jackpot roll no matter what.

[looks at his bowl and decides continuing the conversation is a much better idea] It's a very well-kept secret, so try not to tell all your friends right away. I want to clean out Unova's coffers before they release the new machines next year.