History Fanfic / TheOmnitrixHero

* DeathByAdaptation: Though the [[NoodleIncident exact details are unknown]], Vilgax declares in the first chapter that Max Tennyson isn't alive to protect the Earth from him this time, meaning that something happened to Max in this setting whereas he was alive and well in the canon series. It is eventually [[ResolvedNoodleIncident fully revealed]] that [[spoiler:Tirek was the one who murdered him, shooting him in the back so he could steal the alien technology and spaceship they had discovered for himself]].

** Adagio, while in the middle of her bad diva attitude, constantly order Flash to drive her and her sisters around to their various photo shoots. When Flash ends up battling the Equestrian Dragon Hybrid on their way to a commercial shoot, she constantly yells at Flash to stop fooling around and finish it. When Flash later says he needs to go after it to stop it from hurting anyone, Adagio is more concerned about him not driving them to the shoot, even when Aria and Sonata both agree how dangerous the hybrid could be if it's anything like the dragons from Equestria.

* PreferJailToTheProtagonist: PlayedForLaughs when some crooks, after getting sprayed by [[SmellySkunk U-Reek-Ah]], throw themselves to the police outside the bank they tried to rob and immediately surrender, begging to be arrested just to get away from U-Reek-Ah.

* MistakenForRomance: Because Flash and Trixie have been spending more time together since Flash got the Omnitrix, the Rainbooms notice this and mistakenly believe that the two have become a couple. Though they decide not to ask them for confirmation, afraid that if they aren't actually dating it would embarrass them. Once they finally tell them how they thought they were a couple, Flash and Trixie laugh themselves silly at the thought of dating each other.

** In "Hot Rods and Hot Dates", [[spoiler:Timber Spruce and Adagio Dazzle learn Flash's secret when he transforms back to normal while unconscious. Timber only agrees to keep his secret because Twilight begs him to, but Adagio is much more willing to, since she finds keeping secrets more fun than telling everyone]].

* ThreeAmigos: Flash Sentry, Trixie, and Shining Armor are the triumvirate protagonists of the story. By the second season, they each have a superhero identity of their own, making them equals in the field.

* DeathByAdaptation: Though the [[NoodleIncident exact details are unknown]], Vilgax declares in the first chapter that Max Tennyson isn't alive to protect the Earth from him this time, meaning that something happened to Max in this setting whereas he was alive and well in the canon series.

* WakeUpGoToSchoolSaveTheWorld: {{Deconstructed}}. Flash's heroics put a considerable strain on his working relationship with the other bandmates of Flash Drive, as he's forced to miss their practices so he can save the world. When Flash stops the conductoids, he misses out on a charity event that his band was supposed to play at, costing the community and Flash Drive's chance to get a record deal, which is the final straw for the band to kick him out.

** In "Crystal Clarity", an adaptation of "Hunted", Flash defeats Kraab and Sixsix by using Goop instead of Grey Matter, [[AdaptationalLateAppearance who wasn't in this series yet]].

** In "Crystal Clarity", an adaptation of "Hunted", Flash defeats Kraab and Sixsix by using Goop instead of Grey Matter, who doesn't appear in this series.

* AdaptationalLateAppearance: In canon, Heatblast and Ripjaws were both part of Ben's original 10 aliens. They are absent at the start here, not being part of Flash's own original 10 aliens, but members of both their species, Magisters Fuego and Glug, eventually appear in "Ice to Meet You".

* PragmaticVillainy: The invading Conductoids mention finding a planet where they can refuel their ships, but they decided not to invade because it was inhabited by the far stronger to'kustars.

** In canon, Arctiguana made his debut as one of the aliens of Ben 10,000 before Ben himself eventually obtained him during ''Ultimate Alien''. Here, a criminal of his species, Gelidafur, makes an appearance in in the first season. [[spoiler:And in the second season, the Omnitrix samples Gelidafur's DNA, allowing Flash to ''become'' Arctiguana]].

** In canon, Arctiguana made his debut as one of the aliens of Ben 10,000 before Ben himself eventually obtained him during ''Ultimate Alien''. Here, a criminal of his species, Gelidafur, makes an appearance in in the first season.

* ThreeAmigos: Flash Sentry, Trixie, and Shining Armor are the triumvirate protagonists of the story.

* FireForgedFriends: Flash and Shining start off on the wrong foot, as the latter mistrusts the dangerous capabilities of the Omnitrix in the hands of a teenager. However, when they work together to take down Animo, they become personal friends and partners in defending the planet.

* CouldHaveAvoidedThisPlot: When he's kidnapped by the conductoids, Shining mentions that they wouldn't need to aggressively invade Earth to refuel on cosmic storms, stating that they could just ask. The conductoids explain that they averted this route because they distrust humanity with upholding their bargains.

* DocumentaryEpisode: The "Beyond the Alien" chapters are styled as nature documentaries. They explore the planets that Flash's aliens come from, showing their way of life and how they survive in their daily lives, as well as showing a few other aliens that live on the same planet as them.

* PragmaticVillainy: The invading conductoids mention finding a planet where they can refuel their ships, but they decided not to invade because it was inhabited by the far stronger to'kustars.