Changes

===History===

In the past, Ryoga was a well known Duelist within the national circuit of Duels, and a favorite to win. It's also mentioned that Ryoga was a participant in a certain national tournament, but was disqualified for trying to steal his competitor's Decks. Yuma guesses during their Duel that Ryoga's apparent obsession with making him give up was because Ryoga himself had given up on something precious to him. However when Yuma investigates about Ryoga's past, he and Kotori find an article that states that Shark was in reality disqualified from the tournament because he tried to peek at his opponent's Deck before a match. Yet Yuma doesn't believe that to be true given the way Shark dueled, as he believes that such a Duelist wouldn't be capable of doing that.

===Yu-Gi-Oh! ZEXAL===