Changes

Prior to the [[Battle City]] Tournament, [[KaibaCorp]] developed the second generation Duel Disk, the first one to be released to the public, which were issued to the participants of [[Battle City]]. Originally, only those of eligible ranks to participate in Battle City (at least Level 5 out of 8 stars in the original, or at least 4 out of 5 stars in the dub) could apply for a Duel Disk. After the tournament was over, the device was distributed to public. The disk accepted [[counterfeit]] cards printed and used by the [[Rare Hunters]]; whether this is an oversight or intentional is unclear, but Kaiba did mention that one of the reasons for the tournament is to flush out the Rare Hunters, so the latter is probable.