History Characters / YuGiOhDuelists

* EarlyDraftTieIn: Several early video game appearances by Ishizu show her with a ''very'' different personality from the one she'd be established with. In ''Duel Monsters II'', which predates her manga debut by a couple months, she's an unlockable high-level boss, has a different name (Ishizu Ishtar Naomi), and her design and dialogue is [[https://i.imgur.com/OBQglnt.png noticeably villainous]]. Her ''VideoGame/YuGiOhForbiddenMemories'' counterpart, called Naomi Ishizu in Japan, is much the same. It seems fairly likely that Takahashi hadn't quite nailed down Ishizu's concept at the time those games were being made.

* EarlyInstallmentWeirdness: Several early video game appearances by Ishizu show her with a ''very'' different personality from the one she'd be established with. In ''Duel Monsters II'', which predates her manga debut by a couple months, she's an unlockable high-level boss, has a different name (Ishizu Ishtar Naomi), and her design and dialogue is [[https://i.imgur.com/OBQglnt.png noticeably villainous]]. Her ''VideoGame/YuGiOhForbiddenMemories'' counterpart, called Naomi Ishizu in Japan, is much the same. It seems fairly likely that Takahashi hadn't quite nailed down Ishizu's concept at the time those games were being made.

* SignatureMon: Averted. Unlike every other duelist, Ishizu has no Signature Monster or anything that is close to being an Ace Monster. ''Duel Links'' tries to give her something that is close to a Soul Card, namely "Sacrifice's Blast" (also known as "Blast Held by a Tribute) which is a Trap Card.

** In that same duel, he also blames Jonouchi for beating him and ruining his career. Jonouchi justly responds by pointing out that ''someone'' had to lose that Duel (it's a competitive game, after all), and the fact that he happened to win wasn't an attempt to ruin Ryuzaki's career; it was just the result of him being a better player and Ryuzaki could have focused on bouncing back from a single upset loss, but didn't. It doesn't help that he hung out with Weevil and went along with his more underhanded moments like scamming a kid who was still a big fan of theirs out of his best card in exchange for a few autographs. His declining reputation their was more self inflicted beyond losing at Duelist Kingdom.

** In that same duel, he also blames Jonouchi for beating him and ruining his career. Jonouchi justly responds by pointing out that ''someone'' had to lose that Duel (it's a competitive game, after all), and the fact that he happened to win wasn't an attempt to ruin Ryuzaki's career; it was just the result of him being a better player and Ryuzaki could have focused on bouncing back from a single upset loss, but didn't.

* CameBackWrong: In ''Yu-Gi-Oh! R'', Keith was revived from his deck, which was missing a card that Jonouchi took. Because of this, he's a bit underweight, ''very'' unhinged, and it's heavily implied that he's still dead and lives on as an animate corpse.

* SchrodingersCast: In the manga, he's killed in his Shadow Game with Pegasus, but in the ''R'' spin-off, which is debated canon, he is revived by the Evil Gods. In the anime, he's dropped into the sea instead of being killed by Pegasus's Penalty Game and is later found and brainwashed by Marik. Then in the video games ''VideoGame/YuGiOhTheSacredCards'' and ''VideoGame/YuGiOhReshefOfDestruction'', he becomes the new leader of the Rare Hunters/Ghouls after Marik reforms and christens them the Neo Ghouls.

* SirSwearsALot: In the Viz translation of the manga, he can barely go two lines without SymbolSwearing.

* SignatureMon: The Harpie Lady is the card she uses the most, with the Three Harpie Sisters serving as her ace monsters (Harpie's Pet Dragon is the muscle). Whether it's just the single lady or the Three Sisters, they are treated as her Signature Mon interchangeably throughout multiple mediums. Mai is drawn to the archetype because the Harpie Ladies represent strong females who dominate males, fitting her character.

* BecauseDestinySaysSo: She was so obsessed with following her visions that she threw away a quicker victory against Seto just to achieve the victory she saw. Which fails when Seto manages to defy her visions and defeat her.

%%* BreakTheHaughty: Tries it on Kaiba and to a degree, suffers it herself.

* EarlyInstallmentWeirdness: Several early videogame appearances by Ishizu show her with a ''very'' different personality from the one she'd be established with. In ''Duel Monsters II'', which predates her manga debut by a couple months, she's an unlockable high-level boss, has a different name (Ishizu Ishtar Naomi), and her design and dialogue is [[https://i.imgur.com/OBQglnt.png noticeably villainous]]. Her ''VideoGame/YuGiOhForbiddenMemories'' counterpart, called Naomi Ishizu in Japan, is much the same. It seems fairly likely that Takahashi hadn't quite nailed down Ishizu's concept at the time those games were being made.

* FormalCharactersUseKeigo: In the Japanese she always communicates using very formal linguistics (such as using "watakushi" as a personal pronoun), to illustrate her serious and formal demeanor.

%%* {{Herald}}: In Battle City.

* SpellMyNameWithAnS: Ishizu's name is ''not'' Isis, but it is meant to reference the name Isis. Kazuki Takahashi basically took the name Isis and converted the letters to Japanese characters, though he chose to use Ishizu instead of Ishisu. Further proof is the priestess Isis in the Millennium World arc is spelled more phonetically correct (アイシス; ''aishisu'') as far as the English language goes.

* SignatureMon: Insect Queen is often treated as THE Signature Monster of Haga, with Perfect Ultimate Great Moth being treated as a secondary one. Multiple media still present Insect Queen as Haga's Signature Monster despite her being less powerful than Great Moth and Perfect Ultimate Great Moth.

* SignatureMon: Red-Eyes Black Dragon serves as one initially and is treated as such in ''Duel Links'', but the card is more associated with Jonouchi. Two-Headed King Rex is treated as his other Signature Monster.

* AwesomeButImpractical: His "Fortress Whale", a 7-star normal monster in the manga (which requires two tributes) and a ritual monster in the anime (which cannot be summoned without the ritual card), is too slow and Kajiki needs several backup cards to properly uses this monster, even with an active "Umi" power-up spell on the field.

* DayInTheLimelight: Moreso than most [[MonsterOfTheWeek Duelists of the Week]], Ryota's appearance in the Battle City arc actually starts with him getting acquainted with the workers at an aquarium, before eventually getting hired as a central performer for them. Both of his primary appearances also do make the effort to explain his backstory and what his plans are for the future.
* DefeatMeansFriendship: Kajiki doesn't accompany the protagonists during their journeys, but he becomes good friends with Yugi and Joey despite losing both his duels to them.
* DisappearedDad: Implied to be dead in the manga and Japanese versions of the anime.

* MakingASplash: Several of Kajiki's trap and spell cards involve using the water to protect him and his monsters or to hinder his opponents.

* SignatureMon: The Legendary Fisherman is this to him, even though he has Fortress Whale as his strongest monster. Due to strong resemble to his father, The Legendary Fisherman serves as Kajiki's father replacement to whom he's emotionally attached to.

* AdaptationalNiceGuy: In ''VideoGame/YuGiOhDuelLinks'' (where his manga version gets SparedByTheAdaptation), his unlock event centers around him trying to start over with a clean slate [[FaceOfAThug only to accidentally scare people with his looks]]. Additionally, he states he's more for spooking people for fun rather than genuinely tormenting them like Keith and Bakura, making his demeanor in that game come off as {{Kayfabe}} rather than genuine malice.

%%* EeriePaleSkinnedBrunette

* NightmareFace: Keith even thinks that Bonz's own face is scarier than an actual skull.

* CheatersNeverProsper: His brothers spy on his opponent's cards, but Jonouchi beats him. Although Roba is competent enough that he doesn't need to cheat.
* {{Foil}}: To Bandit Keith. While both a cheater and a {{Jerkass}}, it's all in an attempt to protect his loved ones and he eventually sees the error of his ways thanks to Jonouchi; Keith never reforms or has anyone else's interests in mind. Also, both Roba and Keith use Machines but have different strategies. Keith's decks are [[AttackAttackAttack straightforward offense]] while Roba is primarily a control deck.

* NotSoDifferentRemark: Mokuba compares him to Seto.

* SignatureMon: Jinzoningen - Psycho Shocker is his Signature Monster, even if he loses it to Jonouchi. Psycho Shocker would later serves as one of Jonouchi's best cards. In ''Duel Links'', Psycho Shocker's summoning animation can be triggered by Roba and both versions of Jonouchi.

* MsFanservice: In the manga version. Her Battle City dress is either drawn to sometimes show her generous cleavage or it keeps dropping to reveal her cleavage every few seconds.

* YouCantFightFate: Defied by Kaiba. Ishizu anticipates Kaiba's downfall when he attempts to attack directly with Obelisk, only for it to backfire thanks to her Sacrifice's Blast Trap. Kaiba, however, instead revives Gadget Soldier and uses it and Obelisk as Tributes to Summon Blue-Eyes, and attacks Ishizu with it directly, winning Kaiba the Duel.

* AdaptationalVillainy: In ''VideoGame/YuGiOhTheDuelistsOfTheRoses'', she's on the side of the Yorkists.