"Admittedly, not much." He shook his head. "Owners of the place just put it out on the floor one day and it quickly became one of the most popular games in the whole place. It had some… interesting anti-cheating measures. There were a few cases of kids who were trying to cheat being electrocuted or driven to madness by the thing…" He muttered something about "Tartarus" before continuing. "Why do you ask?"