* AccidentalInnuendo: ''Tons'' due to the nature of merging. A notable one:
-->'''Fudou''': "To merge is... ''' TO EXPLODE!'''"
%%* SugarWiki/AwesomeMusic: Music/YokoKanno worked on the soundtrack. Enough said.
%%* ClicheStorm: This show uses nearly every mecha cliche in the book.
* SugarWiki/FunnyMoments:
** Gen Fudou, with all his wisdom, still has no idea how women work.
** Sylvia getting increasingly jealous of Rena and Apollo in "Black Mirror."
%%** Cosplay of the soul.
* HoYay: This show is purposely RIFE with it.
%%** Baron and Apollo.
%%** Touma and Apollonius.
%%** Jun and Pierre.
** Sirius and Apollo [[spoiler:(mostly because Sirius is half of the reincarnation of Apollo's past life's soulmate; therefore, Sirius--along with Silvia--is Apollo's soulmate)]].
** Tsugumi sees Reika with [[LoveBubbles love background]] (flowers and sparkles) in one scene, and generally crushes on her. Unfortunately, Tsugumi's PsychicPowers react to her flusterment, so [[HilarityEnsues splodiness ensues]].
* MoralEventHorizon: [[spoiler:Touma]] killing [[spoiler:Baron]] in Episode 13 and [[spoiler:the army scientists killing Futaba then using his feathers to create superhuman killing machines]].
%%* OneTrueThreesome: The ending with [[spoiler:Toma, Apollonius, and part of Celion (i.e. Sirius) together forever inside Aquarion.]]
* SuspiciouslySimilarSong: "Exodus" borrows from Elliot Goldenthal's "Victorius Titus" from the ''[[Theatre/TitusAndronicus Titus]]'' soundtrack.
%%* TearJerker: You ''will'' cry at least once during the final episode. Trust us, you will.
* WhatDoYouMeanItsNotForKids: Hulu has this show in the "Family" category of their site. Not only is it aimed at adults due to it being a huge love letter to 70's/80's mecha shows, it has a substantial amount of violence and sexual undertones, including implied incest.