History Series / KamenRiderGeats

** The first Rider shown to actually die in both ''Ryuki'' and ''Geats'' winds up setting the tone for both series in very different ways. In ''Ryuki'', the first dead Rider is a DirtyCop who uses monsters to get rid of people who know too much about his crimes; the instant his Driver was broken, ending his contract with his monster, said monster promptly ''eats' him, and he is mourned by no one. In ''Geats'', the first dead Rider is a man who wants to heal his son's illness--his dying words are a lament that his son is now ill ''and'' will not have a father. This sets up a very specific difference in tone--though eventually the Rider War and DGP both are clearly established to be a MoralityKitchenSink, Takahiro's death in ''Geats'' frames the DGP Riders as ordinary people, most of whom are usually pretty decent, learning what 'game over' means the ''hard'' way.

** #29 Three 1v1 battles between the main characters against the current antagonists, [[Series/KamenRiderBuild seems familiar]].

* SpiritualAntithesis: The series is this in regards to ''Series/KamenRiderRyuki'', in the games' focus intially focusing on fighting monsters with in-fighting among Riders not allowed. Additionally, while the Rider War is a singular conflict stuck in a GroundhogDayLoop from interference and always ends with no real winner, to various degrees of pleasantness (ranging from a clean RetGone to an EverybodyDiesEnding), the Desire Grand Prix has multiple rounds and intentionally alters time and space to clean up damages and keep non-participants out of the loop, not just to accommodate the winner's wish. Also, while the aforementioned alternate EverybodyDiesEnding in ''Ryuki'' is strongly implied to be an unnatural occurrence caused by a loophole in Shiro Kanzaki's designs (to his detriment), it would be entirely possible for the equivalent to occur naturally for countless loops in ''Geats'' simply by losing.
** Also, while it's easy to take it as a LighterAndSofter ''Ryuki'' at first, we find that it needn't be so light after all by the early SacrificialLamb rider death being similarly antithetical: in ''Ryuki'' it was a DirtyCop who used monsters to get rid of people who knew too much. The instant his Driver was broken, ending his contract with his monster, said monster promptly ''ate'' him. He was mourned by no one. In ''Geats'', it's a man who wants to heal his son's illness, lamenting that his son is now ill ''and'' will not have a father. The premise going from 'fight to the death' to 'world-saving game' means instead of people who knowingly signed up for a game where they must kill the other contestants, few making it up to even AntiHero, we have ordinary people who are usually pretty decent learning what 'game over' means the ''hard'' way.
** Starting in the Yearning arc, the series starts beginning less of an antithesis when Suel holds a Desire Royal that encourages Kamen Riders to battle each other. Fights between Kamen Riders would become more frequent from that point on.

* BirthdayEpisode: Neon has her birthday in episode 29. [[Spoiler: But in the same episode, she learns her life was artificially created.]]

** The Genesis arc has the heroes grapple with how to deal with the civilians who've been turned into [[TerminalTransformation Stage 2 Parasite Jyamato]], with the thought seemingly never occurring to them that they could [[spoiler:just ask Tsumuri to use her RealityWarper powers to make a powerup that can defeat Stage 2 Parasite Jyamato while saving their hosts.]]

** Not the first time there is a all-powerful figure with [[Series/KamenRiderBlack "Creation"]] in their name. Nor one who turns out to be [[Series/KamenRiderBlackSun a mindless figurehead used by the antagonists for their agenda with the protagonist inheriting the role after the death of their predecessor.]]

** #21 features [[spoiler:Gazer -- a gold-themed Rider -- assume a ReverseArmFold and single-handedly fend off his opponent with only one hand, ''a la'' [[Series/KamenRiderDenO Sieg/Den-O Wing Form]].]]
** #31 features [[spoiler:Archimedel feeding himself to the Dunkleosteus Jyamato then re-emerging as the dominant personality of said Jyamato, in a similar manner to [[Series/KamenRiderSaber Storious feeding himself to the Charybdis Megid]].]]

** The Genesis arc sees [[spoiler:Kekera going out of his way to forcibly engineer tragedies for Keiwa to drive him to become a FallenHero, under the belief it will be more entertaining]], essentially a lampoon of the trend of Reiwa era shows to [[ConflictBall force more conflict]] by making a previously heroic character suddenly turn to the dark side.

** Starting in the Yearning arc, the series starts beginning less of an antithesis when Suel holds a Desire Royal that encourages Kamen Riders to battle each other.