-->''"Kamen Rider. They are masked heroes that protect mankind. Armed within the Deck, Kurogasa Kururugi ventures out to the prestigious Duel Academy as he sets on his journey to find his father and determine the path of his destiny. Henshin!"''

A Crossover of ''Kamen Rider'' and ''Yu-Gi-Oh! GX'' created by [[http://www.fanfiction.net/u/1833080/Fenikkusumaru Fenikkusumaru]]. The story begins with Kurogasa Kururugi, a young boy with a Kamen Rider deck featuring the Heisei era Riders, attends the prestigious Duel Academy and manages to make his way into Ra Yellow. Along the way he meets Jaden Yuki, Syrus Truesdale, Alexis Rhodes and Bastion Misawa. With them and some old and new friends, he begins his search for his missing father, the creator of the Kamen Rider Deck. However, the darkness of the Shadow Realm begins to surface once more and Kurogasa must make the heavy choices and the right moves to come out alive.

While it is a rewrite of the first two seasons of Yu-Gi-Oh! GX, the story has its own blend of interesting OC's and various differences from the TV Series, such as the cameo appearance of the WWE, the Chazz-a-nova episode being discarded for a brand new plot (Much to the fans delight), and the various Kamen Riders from both Heisei, Neo-Heisei and Showa Eras, the series leaves you sitting at the edge of the chair.

As of July 9, 2013 the first season is Completed, with the Second Season, Society of Light, being in its ongoing phase.

You can find the stories [[http://www.fanfiction.net/s/8286941/1/Kamen-Rider-GX here]] and [[https://www.fanfiction.net/s/9532712/1/Kamen-Rider-GX-Society-of-Light here]].

!!Important Tropes after chapter 30 will be under spoilers

* AcademyOfAdventure: No need to explain this one...
* AlasPoorVillain: [[spoiler: Tarakudo, Kurogasa's Uncle, was possessed by the Big Bad Orpheus and thus has to spend the rest of eternity in the Shadow Realm]]
* TheAce: Jaden, possibly Kurogasa as well as he wins most of his duels.
* AutobotsRockOut: Several chapters have the Kamen Rider themes for the respective Kamen Rider.
* BadassBiker: Being a crossover with Kamen Rider, this is to be expected. However, this takes a while for Kurogasa to get his own bike.
* BigBad: The Shadow Riders and [[spoiler: Orpheus]]
** In Season 2, we have, but who else, the Society of Light's Sartorius. [[spoiler:Oh, and Kamen Rider Sorcerer.]]
* BigDamnHeroes
* ButtMonkey: Chazz, as expected.
* BlackMagicianGirl: Guess who makes an appearance, and becomes part of Kurogasa's deck?
* BrainwashedAndCrazy: The Shadow Riders, but could be a form of possession also. [[spoiler: Turns out Orpheus is possessing Tarakudo Shinryuu, Kurogasa's uncle on his mother's side.]]
* TheCameo: The Paradox Brothers, Arkana, WWE, Yugi and Joey, Pegasus, Kaiba, the list goes on.
* CardGames: Because it is SERIOUS BUSINESS!
* CatchPhrase: [[spoiler: I am the soul of all Kamen Riders, Kamen Rider Duelist!]]
* ChekhovsGun: The gauntlet [[spoiler: which somehow contains the spirit of Kurogasa's dead mother Yukina]]
* CoolBike: Kurogasa rides one on the way to the Duel Academy Exams.
* [[spoiler: CombiningMecha: This is done during the Rider War, by SYRUS no less!]]
* DespairEventHorizon: [[spoiler: Kurogasa goes through this once he learns from Orpheus that his mother died giving birth to him and is responsible for most of Tarakudo's actions. Subverted as his friends [[YouAreNotAlone talk him out of it]], as well as the spirit of his dead mother.]]
* EmpathicWeapon: The Kamen Riders are a deck with their own spirits.
* {{Expy}}: Kurogasa's hair is described as being similar to [[Anime/MobileSuitGundamSEED Kira Yamato]] and has the surname of [[Franchise/CodeGeass Suzaku]], which is [[SignatureStyle standard fare]] for Fenikkusumaru's stories.
* EvilCounterpart: The Dark Kamen Riders. Orpheus to Kurogasa.
* GratuitousEnglish
** GratuitousJapanese: The Kururugis, Kouji, and Rika are practically the only ones who use ''any'' form of Japanese in the series, seeing as he is adapting from the dubbed anime, which, again, is [[SignatureStyle standard fare]] for Fenikkusumaru's stories.
* HenshinHero: [[spoiler: And Kurogasa, becoming Kamen Rider Duelist with the aid of his deck.]]
* LoadsAndLoadsOfCharacters: The main characters are the Canon Cast as well as the OC. That's nearly 20.
* LoveMakesYouEvil
* [[spoiler:[[LukeIAmYourFather Kurogasa, I Am Your Uncle]]]]
* MidSeasonUpgrade: [[spoiler: Kinda inverted as Kurogasa becomes a Kamen Rider mid story.]]
* NiceGuy: Kurogasa's personality most of the time.
* OneWingedAngel: [[spoiler: Orpheus gets this post chapter 42]]
* OriginalCharacter: The main character as well as several.
* OurSpiritsAreDifferent
* TheReasonYouSuckSpeech
* RedemptionEqualsDeath: poor poor Kurai...[[spoiler: Subverted when he is brought back in the end.]]
* SeriousBusiness
* ShipperOnDeck: Rika REALLY likes shipping people together. [[spoiler: Kurogasa and Alexis, Koji and Marta, Syrus and Mamori. She certainty has a problem though when she is being Shipped with Jaden.]]
* ShrinkingViolet: Mamori Yamamoto is this and always clinging to Marta Aozaki, until you call her [[BerserkButton short]].
* ShoutOut: Where to begin?
* {{Tsundere}}: Rika has Type-B shades of this towards [[spoiler: Jaden]]
* WrestlerInAllOfUs: WWE makes an appearance twice in story. The first time during the School Duel and the second time its for an official show at Duel Academy on Duel Monsters Spirit Day. Kurogasa, Jaden and Koji each participate in a fight against [[spoiler: The Shield, alongside The Rock, The Undertaker and Ryback.]] And they show they got the moves.
* YouCantFightFate