* AntiClimaxBoss: [[spoiler: The Overlord of Darkness goes down from a single Rider Kick after Shouichi, Ryo, and Hikawa kill the Els of Wind and Earth. Though to be fair, he was in a position were he was vulnerable and couldn't really use most of his powers at the time. And it didn't ''kill'' him. He just decides to give up his little conquest against the humans and that's it.]]
* CompleteMonster: Anguis Femineus, the Gorgon Lord. She actually [[PsychoForHire takes sadistic pleasure in her murders]], [[EvilLaugh laughing sinisterly]] as she stalks her victims. She even murders [[spoiler:Sakiko Mikumo]], a normal human, out of ''spite'', causing the Overlord to force her to kill herself as punishment.
** A number of the Lords - despite supposedly being Angels and even making hand-signs for permission to sin - actually display sadistic pleasure in killing their victims. E.g. Corvus Croccio, Apis Mellitus, and the aforementioned Anguis Femineus.
* CrowningMusicOfAwesome: [[http://www.youtube.com/watch?v=Y2f1oEZLGdI DEEP BREATH, We need it, just focus!]]
* GameBreaker: Shining Form
* {{Narm}}: thanks to a variant of SpecialEffectsFailure. [[spoiler:After the black Overlord takes back the powers of Agito, Gills and Another Agito, Shoichi goes through a Heroic BSOD of sorts before literally fighting to reclaim them in episode 46. At the critical moment (see DidYouJustPunchOutCthulhu above), the black Overlord goes down and the powers he's taken emerge...[[FreudWasRight from his groin]].]]
* NightmareFuel: The various methods the Unknown use to attack their victims.
** Gills himself qualifies as well, especially when you see ''his helmet come alive.''
** Gills is an organic Rider, like [[Series/KamenRiderAmazon Amazon]]. [[BodyHorror That's not a helmet.]]
** The Unknowns themselves are very nightmare fuel. From their humanlike appearances to the fact that they're constantly hissing or growling (the only word they seem to say is "Agito"). The BGM that accompanies them onscreen does not help.
* TooCoolToLive: [[spoiler:Another Agito]]
* TropeMaker[=/=]TropeCodifier: Quite a lot for Heisei Kamen Riders. This series was very experimental by introducing four TV Show Riders and three who are the main characters. The Rider who acts as a rival was not fully formed yet but it has its roots in this series as a recurring element. A lot of Heisei era tropes came from this show and many of them were expanded upon in later series. Here's a list:
** Multiple Riders.
** Movie Riders (Kamen Rider G4 was the first one).
** Rivalries between Riders (this series was more subtle about it).
** PoorCommunicationKills: This series was written by ToshikiInoue, who later became infamous for writing these sorts of situations. Thankfully it's not as bad here.
** Evil Riders (Another Agito and G4, though the former turned good).