Changes

In ''[[Yu-Gi-Oh! R]]'', [[Richie Merced]] wielded a Black Disk, a special one-of-the-kind Duel Disk that only the strongest individual of the [[Card Professors Guild]] is allowed to wield. It is a KC mass production Disk with jet black colors, produced by [[Yako Tenma]]. [[Keith Howard (manga)|Keith Howard]] defeated Richie and took the Disk for himself, only to lose a duel (and the Disk) to [[Katsuya Jonouchi (manga)|Katsuya Jonouchi]], who gave it to [[Tilla Mook]] as returning the Duel Disk he borrowed from her earlier. Tenma installed an anti-cheat alarm onto the device, making it unable to accept cards that were not drawn from the Deck, as Keith found out when he attempted to sneak a "[[Ring of Destruction (manga)|Ring of Destruction]]" from his wristband onto the zone.