List of thematic parallels

There are many thematic parallels between the games of the Xeno series.
==Protagonists==
* Noah's appearance, role, and personality is similar to Fei Fong Wong.
** Both hate fighting and taking lives, and only does so just to survive or given no choice.
** Both Fei and Noah met their respective lovers while on opposite sides of war, Mio to Agnus, Elly to Solaris.
** Both have reincarnated throughout history.
** Noah's Ouroboros form resembles that of Weltall, Fei's primary Gear.
** Additionally, his name is shared with Xenogears' development name, Project Noah, which is also the name of Krelian's plan to resurrect Deus.
* Mio's role is similar to Elhaym Van Houten.
** Both Mio and Elly met their respective protagonists while on opposite sides of war, Noah to Keves, Fei to Bart's crew.
** Both have reincarnated throughout history.
** Both eventually fell in love with their respective protagonist.
** Additionally, Mio's long hair appearance evokes's Elly's knee-length hair.
* Matthew's appearance strongly resembles Fei Fong Wong.
* Elma's true form appearance strongly resembles KOS-MOS.
** Both Elma (in her true form) and KOS-MOS are introduced after awakening and exiting their stasis pods.
* Pneuma's sacrifice in the ending is similar to Kirsch's sacrifice in Xenosaga: The Animation.
** Both separates the main party by detaching the bridge to stay behind.
** Both involves them destroying an orbital facility from falling and destroying their respective worlds.
** Both thank their biggest influence on their lives before accepting their respective fates.
** Those close to them, Shion and Rex were initially unable to let go.
==Antagonists==
* N's backstory and motives are similar to Lacan/Grahf.
** Both are preincarnations of the main protagonists Noah, and Fei Fong Wong respectively.
** Both lost their loved ones, N to M, Lacan to Sophia, resulting them taking dark and dangerous paths.
* N also has similarities to Id.
** Both are an antagonistic version of the protagonist.
** Unlike Id, N exists as a separate individual, rather than an alternate personality.
** Both eventually reunited with their original selves after being defeated for the final time.
* N is also similar to from Xenoblade Chronicles 2.
** Both wear masks to conceal their faces.
** Both lost someone close to them, resulting in them siding with the main antagonistic force. 
** Both eventually find peace after their final defeats.
* Z's overall appearance is similar to Xenogears' main antagonist, Krelian.
** Z's true form is similar to how Krelian took the form of a disembodied face when Fei encounters him in the Path of Sephirot.
* How Shania betrayed the party is similar how betrayed Fei and his group.
** Both betrayals are a result of their jealousy and insecurities towards others, resulting them to side with the main antagonistic force of their respective game.
** Both parties were betrayed when they attempted to escape from Li Garte Prison Camp and Solaris respectively, just steps away from freedom.
** Both were transformed after their betrayal, Shania was transformed into a Consul after her suicide, while Hammer was fused into a Gear by Krelian.
** Both later regret their choices before they die after being defeated by the party.
* Z's motives and nature are similar to the main antagonist of Xenosaga, Wilhelm.
** Neither are real beings. Z is a manifestation of the fear held by the consciousness stored in Origin, while Wilhelm was created by the Collective Unconscious to protect the Lower Domain. 
** Both treat the world as if it were entertainment, with Z seeing the world's events as a film, and Wilhelm seeing them as a play.
** Both trap the world in a time loop to avoid a perceived catastrophe in the future. Z has frozen time at the point of the two worlds' collision, creating Aionios, the "endless now". Wilhelm resets time to before the universe's collapse, a cycle known as Eternal Recurrence through Zarathustra.
** Both revived previously deceased characters to serve them, Z revived them as Moebius, while Wilhelm revived them as Testaments.
* The Consuls are similar to the Testaments.
** Both have been revived by their leader to serve them.
** Both wear face concealing masks to hide their identities.
* Consul D's helmet is visually similar to Grahf.
* D’s character and backstory is similar to Mumkhar.
** As an Agnian soldier, Dirk used nearly identical claws to that of Mumkhar’s. Both would also go against their comrades, such as Dirk killing his Agnian allies, while Mumkhar would betray Dunban and Dickson at Sword Valley.
** After becoming Moebius and a Face Mechon Pilot respectively, both revel within the newfound power they received as a result of their new bodies.
** Both are antagonists who begin the main conflict of their respective stories, such as D attacking the party and Guernica Vandham in Alfeto Valley, alongside Metal Face’s assault on Colony 9.
** Both are openly sadistic and murderous, reveling in the pain and suffering they cause to others.
** Both would kill a longtime friend of the protagonist’s, such as D killing Eunie in her previous life, while Metal Face would kill Fiora at Colony 9.
** Both die in similar ways, involving falling into an endless sea before violently exploding after being defeated a final time by the party.
** Both Moebius D & J and Metal Face are fought at level 10 during their first appearances, and are fought at level 42 during their second appearances.
* Amalthus' motives are similar to Krelian's from Xenogears.
** Both are the primary antagonists of their respective games.
** Both are motivated by the death of someone close to them and witnessed the worst of humanity firsthand, resulting in them developing a god complex.
** Both have done horrific experiments on humans.
** Both desired to destroy everything by using divine power.
** Both claimed to be agents of their respective gods they worshiped.
==Supporting characters==
* Klaus's character parallels that of Grimoire Verum.
** Both are lead scientists that hold jurisdiction over their series' respective golden monolith. 
** Both started an experiment that caused the disappearances of many people on their respective Earths. 
** Both feel great remorse for their past actions.
* M is similar to Mother Sophia.
** Both are preincarnations of a deuteragonist who is close to a pre-incarnation of the protagonist.
** Both of their deaths involve self-sacrifice so another can survive.
** Both of their deaths causes their lovers to take a dark path.
* Triton's character and personality could be seen as a homage to the Thames Captain.
** Both are self proclaimed "men of the sea".
* Crys's death is similar to Kevin Winnicot's.
** Both of their deaths are engineered by themselves in order to be revived by a higher power; Kevin as a Testament, and Crys as a Moebius in order to see someone close to them again.
==Setting==
* Keves and Agnus soldiers being reborn and forgetting their past lives after death is similar to how Blades in Xenoblade Chronicles 2 are reborn after their previous driver dies and have no memories of their past.
** The concept of reincarnation is also one of the core themes of both Xenoblade Chronicles 3 and Xenogears. 
* The castle and technology of Keves are based on the Mechonis in Xenoblade Chronicles, whereas the castle and technology of Agnus are based on Indol in Xenoblade Chronicles 2.
==Others==
* Abel's Ark's has several references to Xenogears.
** Its second form resembles the Eldridge.
** The central chamber that contains the four sub-dungeons resembles Deus's four pillars surrounding it.
*** Natus Flamma is based upon Andvari.
*** Natus Glacies is based upon Fenrir.
*** Natus Lumen is based upon El-Renmazuo.
*** Natus Tellus is based upon El-Stier.
** The dungeon's main boss, Ω Metempsychosis resembles 's final form, complete with miniature versions of Weltall and Vierge dangling on a string.
** The dungeon's music features an accompaniment line based upon One Who Bares Fangs at God.
* The Final Cross resembles KOS-MOS's X-BUSTER attack, albeit a red coloration.
* The Samaarian ships resembles Abel's Ark.
* The Cradles is very similar to the Kadomony from Xenogears or the tube that Kahran Ramsus was born from.
** They are also similar in nature to the Regeneration Chamber, the device used to regenerate the missing tissue of Fiora and other surviving Face pilots.
* Ontos's nature is similar to the Wave Existence from Xenogears and U-DO from the Xenosaga trilogy.
** One of Ontos's instantiations, Alvis took on the form of a green star in the ending of Xenoblade Chronicles, resembling the Wave Existence.
** Both Ontos and U-DO are connected to a gold monolith, the for U-DO and the Conduit for Ontos.
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