Reginald Kastle, known as Ryoga Kamishiro ( (かみ) (しろ) (りょう) () , Kamishiro Ryōga) in the Japanese version and nicknamed Shark, is a character in the Yu-Gi-Oh! ZEXAL World Duel Carnival video game. This is a video game depiction of Reginald Kastle, a character from the Yu-Gi-Oh! ZEXAL anime.


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