* SugarWiki/AwesomeMusic: NO FEAR, NO PAIN, [...] CHOU HENSHIN, KAMEN RIDER KUUUUUUUUGAAAAAAA!
** The music that accompanies the [=TryGouram's=] debut, too.
** [[http://www.youtube.com/watch?v=7Hxi3kpBPiQ&feature=related The awesome theme that kicks in when Kuuga is kicking ass]].
* CompleteMonster: Grongis already are hardly the most pleasant folks out there, but Go-Jaraji-Da (the Porcupine Grongi) and Daguba are especially nasty.
* FoeYay: Ichijou and B1/Rose Grongi.
* GameBreaker: '''Ultimate''' Form.
* HilariousInHindsight: [[spoiler:It's stated in the finale that the Gouram was intended to disintegrate if Kuuga somehow grew too powerful, yet it doesn't happen even after he gains Ultimate Form. Fast forward to ''KamenRiderDecade'', where he certainly qualifies after gaining an additional ''Rising'' Ultimate Form...]]
** It was hilarious even before that when [[spoiler:Decade ''turned Kuuga himself'' into a Gouram]], but was further compounded in the ''Final Chapter'' movie by [[spoiler:Kuuga having the ability to become Ultimate Gouram form at will.]]
* HoYay: ''"...Why am I on your shoulder? This is the blunder of my life..."''
* MemeticMutation: Kuuga sure is a cool guy.
** The so-called "curse of Kuuga" which, for the longest time (until 2010, when it was apparently broken after ten years), seemed to cause any fan translation projects to come to a sudden halt after about ten episodes.
* NightmareFuel: [[spoiler: N-Daguba-Zeba's debut in his perfect form, which is at the beginning of one of the last episodes where he has Kuuga on the ropes, belt damaged and beaten to the point that Godai can only watch as he starts setting people near by on fire in the rain. All of this is disjointed shown to the audience as Godai would have seen it with his own eyes.]]
* PuritySue: Yuusuke Godai. He is always happy, has no flaws or weaknesses (being overly willing to sacrifice himself to protect others does ''not'' count as a flaw - Tell that to [[VisualNovel/FateStayNight Shirou]]), and everyone around him not only instantly loved him, but was also infected by his happiness.
** He scored a 44 on the [[http://www.springhole.net/quizzes/marysue.htm Universal Mary-Sue Litmus Test]]. Which is quite high
** [[spoiler: In a way, this is more or less required. [[SuperpoweredEvilSide Kuuga's Ultimate form has the potental to turn the user evil]] if the user does not have a clear mind, thus starting the whole thing over again. This is the main reason why in ''Decade'' Yusake was in Black eyed Rising Ultimate, since unlike Godai, he had a lot of doubts as the series went on, but once he got over them, he was able to control it.]]
* SpecialEffectsFailure: They ''really'' should have stuck to practical effects for the monster explosions. They look like something out of a PS1 game.