With so many characters, it's only fitting that there should be a section that details all the many lore gags that have piled up over the years. Unmarked spoilers are here, so enter at your own risk.
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Franchise-wide
Final Fantasy
- The party members are called "warriors with the light."
- Mog mentions in Rem's Intersecting Wills that he started off with four characters (Warrior of Light, Vivi, Rem, and Sazh) as a nod to this tradition of four warriors chosen by the crystal.
- Most of the characters originally from a 3D-based title have the same battle stance as their original counterparts.
- Torsions are similar to the recurring concept of The Void.
- Characters retain memories of their homeworlds and allies and react accordingly to such.
- Mog explains the world of Opera Omnia is created in the image of the party's homeworlds, which is why the locations may seem familiar to them.
- Trailers introducing new characters show customized battle scenes with bosses and party members that reference their original games.
- During Zack's Lost Chapter, Zack asks Mog to deliver letters, which he refuses to do. Moogles across the series are often depicted as delivering mail.
Final Fantasy I
Final Fantasy
- Warrior of Light's LD Ability, Cycle's End, references how the Warriors of Light put an end to the Stable Time Loop by killing Chaos.
- Garland's 15CP Ability, Running the Cycle, is how he perpetuates the Stable Time Loop of being defeated by the Warriors of Light then brought back in time to become the Dark Lord, Chaos.
Final Fantasy II
Final Fantasy II
- Firion uses a wild rose as a signal.
- Firion is allied with the Returners in Opera Omnia, which he joined because it was similar to the resistance organization he joined in his homeworld.
- Firion's "unpleasant memories" of competing in front of a crowd may reference the Coliseum competition where Princess Hilda was to be rescued.
- Firion's respect for Ashe, a "princess fighting against imperial tyranny", and Garnet's strong will, both allude to Princess Hilda, leader of the Wild Rose Rebellion.
- Firion tells Faris he has a "rougher impression of pirates", alluding to when he was attacked by Leila's gang at sea.
- The opening scene of Maria's event alludes to the opening of Final Fantasy II where Firion's party was forced to escape from Fynn.
Final Fantasy III
Final Fantasy III
- Xande's 35CP Ability, Grudge Against Master, references how he utterly hates his master, Noah, for giving him the gift of Mortality.
Final Fantasy IV
Final Fantasy IV
- The first available summon is a chocobo. Rydia joins Cecil's party in Final Fantasy IV with this as her base summon, though she is most identified with the Mist Dragon she acquires later.
- Various characters have different memories due to joining the party at different times in the original game:
- Cecil, as a Dark Knight, has not befriended Edge prior to being summoned in Opera Omnia. Edge only joined the party in Final Fantasy IV when Cecil was a Paladin.
- Kain thinks Cecil has lost the light, suggesting he knows Cecil became a Paladin in their homeworld. Cecil only remembers Kain betrayed him before in Fabul.
- Rydia is not recognized by Cecil, Edge, and Yang due to them not having met Rydia as an adult at the time they were summoned to the world of Opera Omnia. Yang specifically recalls his last memory of Rydia was their shipwreck by Leviathan.
- Yang attacking the party during his first encounter is a reference to his attacking Cecil's party in Baron while brainwashed.
- The location of Chapter 5 reminds Cecil and Yang of the place where they first met, Mt. Hobs.
- Arc 2 Chapter 2 sees Cecil become a Paladin in the same vein as he did in Final Fantasy IV.
- After Cecil became a Paladin, Palom mentions his twin sister Porom, who arrives in this world much later.
- The location of Rydia's event may reference the Underworld where she rejoins as an adult in Final Fantasy IV. Her rescuing the party from Bombs references the destruction of her hometown and her return as an adult during the battle with Golbez (2D and 3D).
- Rydia informs her allies about her growth in the Feymarch and the Eidolon Queen's words that the wheels of a greater fate are turning, which is directly lifted from her return to the party in Final Fantasy IV.
- Edge's LD ability Inferno is a reference to Rubicante, and the counterattack he executes is his full-party Band from The After Years, with orbs of light for the strongest version of the attack standing in for the missing members of Eblan Five. At the same time, he also gains his costume from The After Years, which includes Rubicante's flame cape that he started wearing.
- In Edge's Intersecting Wills, he recognizes that Caius is a Noble Demon and a man with honor, mirroring his relationship with Rubicante. It drives him to treat Caius respectably in turn.
- Every single playable character from IV has at least one Combination Attack of some kind with another character from their game (FR abilities aside), which is meant to be a reference to the Band abilities from the same game. The only exception is Rubicante, but even he uses abilities that represent the other Archfiends in his Burst attack.
Final Fantasy V
Final Fantasy V
- One of Exdeath's quotes is for him to shout is "Turtle!", referencing his rivalry with Ghido, an old turtle who handed him his ass in his home game.
- The World of Illusions is based on the Interdimensional Rift.
- All the characters from Final Fantasy V sometimes have three stars showing up over their head, alluding to the master job symbol in the job system. Mastery in Opera Omnia adds a bonus to the skills used after a given number of turns, whereas in Final Fantasy V a character will receive stat modifiers granted by a job.
- When Bartz meets a wild chocobo, he says that he wants to meet Boko in this world.
- Faris's story in Opera Omnia draws from her story arc in Final Fantasy V:
- She is found by the party having washed ashore; a dying Syldra carried Bartz's party to safety after the Walse Tower sank.
- She mentions that a whirlpool caught her ship, alluding to the battle with Karlabos at the Torna Canal. Men in the party marvel at her looks before she is revealed.
- Although Galuf joins the party earlier, it is not he who uncovers her charade as in the original story, but Zidane, owing to this his affinity for women.
- The party eventually resolves to press on in spite of what they know, letting Faris be Faris. A similar conversation happened in the Ship Graveyard.
- When the party meets Galuf for the first time, he pretends to be dead while he's actually just sleeping. This is the same joke he's done in Final Fantasy V.
- Galuf deploys amnesia as a defense when he becomes the butt of a joke by Bartz. He used the same defense in early parts of the original story.
- Galuf's role in battles as a tank with abilities to withstand attacks and prevent himself from getting K.O. are alluded to his battle against Exdeath in the Great Forest of Moore.
- In Imber Manor, Bartz says "Where there's a hidden passage, there's treasure," an allusion to the hidden passage gameplay feature made famous by Final Fantasy V.
- During her Lost Chapter, Faris is reluctant to remove her clothes to go swimming, which was the incident in Final Fantasy V that revealed her gender to the party.
- The storyline of Lenna's event and its exclusive boss is a reference to Lenna's selflessness in consuming dragon grass to heal wind drakes twice in Final Fantasy V.
- Act 2 Chapter 8 takes place on the Ronka Ruins, and features the dark manikins of the main cast. Bartz's manikin has captured the memories of his original counterpart, leaving him on a catatonic state.
- Bartz recalls the strange old man in the well at the werewolf village who is inexplicably drawn to frogs when meeting Quina.
- Kelger's confusion at being alive and thinking he's failed Bartz is a reference to him sacrificing himself in order to dispel the illusion around Castle Exdeath.
Final Fantasy VI
Final Fantasy VI
- In Ashe's Lost Chapter, Edgar and Sabin bring up how Castle Figaro can sink under the desert to evade incoming armies.
- Terra was controlled by Kefka's Slave Crown and was riding a Magitek Armor before joining the party. Her first appearance in the Snowy Peaks of Crudelis alludes to the snowfields of Narshe where Final Fantasy VI began.
- Terra alludes to several of her allies in the same chapter, long before they appear in Opera Omnia: Edgar ("a king who fights"), Sabin ("his younger brother who uses his fists"), and Strago (an old man).
- The co-op sticker of Kefka's line, "Son of a sub~!" refers to his line from the SNES translation, "Son of a submariner!"
- Galuf asks Shadow about having nightmares due to mumbling about his partner (Baram) and daughter (Relm), alluding to how scenes of Shadow's past could be viewed by sleeping at an inn with Shadow in the party.
- Setzer's lack of motivation without an airship is a reference to his state after losing the Blackjack in the World of Ruin. In both cases, he is inspired to fight again by the arrival of the party.
- The Returners in Opera Omnia are led by Edgar, with Firion, Shadow, and Layle as members. Terra immediately recognizes the connection.
- Ultima Weapon says its battle introduction prior to attacking the party in Chapter 7.
- Cyan speaks in the same ancient formal Japanese used in his original appearance, which again takes the form of Early Modern English in the global release.
- The party takes in Cyan after battling a Magitek Armor variant he piloted; he tried to use it battling monsters, but lost control because he and machinery do not mix, a fact that both Terra and Shadow make a point of restating.
- Edgar asking Eiko her age in Chapter 10 references the exchange he had with Relm in Thamasa.
- Celes vocalizes and sings the first two stanzas of the "Aria di Mezzo Carattere" in her Lost Chapter, responding to how Zidane and Eiko were practicing "I Want to Be Your Canary", as seen below. She prepares to sing in the same fashion she did in the source ("Ahhh, mi mi mi mi~ Ahem, Ma~ri~a~")
- This background is referenced during "With Trabia in Mind" as well as during "Gentle Strength."
- The lyrics used are based on the mid-2000s renditions of the aria, which are the most recent.
- This background is referenced during "With Trabia in Mind" as well as during "Gentle Strength."
- The location of Sabin's event references the Phantom Forest.
- Mog calling Sabin a bear is a reference to Terra's first impression of Sabin as "one of Vargas's bears."
- Sabin declares the party will get "suplexed" when he attacks them, referencing the popularity of his Meteor Strike (or Suplex) Blitz being able to hit the Phantom Train.
- Terra's confusion when Thancred flirts with her is similar to her first meeting with Edgar at Figaro Castle.
- Locke's victory pose is based on his Yoshitaka Amano artwork.
- One of Terra's Sample Voices is "泥棒...なんでしょ？" ("Dorobou, nandesho?", "You're a thief, right?"). Calling Locke "a thief" is what usually upsets him in their original game. Locke also has a Sticker and a Sample Voice saying that he prefers to be called a treasure hunter.
- Another Sample Voice for Locke is "まままままま まほう！？" ("Mamamamamama mahou!?", "M-m-m-m-m-m-magic!?"), his quote from when he saw Terra using magic for the first time.
- In Mog (VI)'s Intersecting Wills chapter, they come across a Wendigo and Mog browbeats it into serving him, in a direct reference to his relationship with Umaro. Terra even mentions the similarity a little later. He also references the Moogle Charm he got from his girlfriend Molulu, which is a constant reminder of her.
Final Fantasy VII
Final Fantasy VII
- One of Cloud's quotes, "...To complete my disguise." references the memorable moment that he went Disguised in Drag to get into Don Corneo's mansion to rescue Tifa.
- Cloud's LD Ability, True Memories, references him coming to grips that his memories as a First Class SOLDIER were those of Zack.
- Tifa's quote of "...I'll smash it." is in reference to when she, Cloud and Aerith threaten a Groin Attack on Don Corneo.
- Tifa's 15CP Ability, The Zangan Wisdom, references her teacher Zangan who taught her how to fight.
- One of Sephiroth's stickers says "I will never be a memory.", referencing his last words from his and Cloud's climactic duel in ''Final Fantasy VII: Advent Children.
- During Aerith's Lost Chapter in the section, "Flowers," has Raijin and Eiko picking flowers and she tells them not to step on the flowers. Seifer, being the Jerkass he is, ends up stepping on them like Reno did.
- During Reno's event, when he sees Zack is in the same world as everyone else, the events of the end of Crisis Core are still fresh in his mind.
- Yuffie stole a materia from Tifa's glove. Tifa mentioned that the materias aren't functioning in this world.
- When Yuffie joins the party, everyone walks away and leaves her behind similar to when she joins Cloud's party in Final Fantasy VII.
- When the party finds the unconscious Faris, Tifa suggests Cloud to do CPR since he has done it before to save Priscilla in Final Fantasy VII.
- When the party learns the truth about Faris being a woman, Tifa makes reference to Cloud crossdressing.
- Yuffie says that her dream is to steal enough treasures to restore her village.
- Cloud assumes that Sephiroth is responsible for killing a giant bird monster. This scene alluded to Sephiroth's killing a Midgar Zolom.
- Vincent's recruitment in Imber Manor references his original recruitment in Shinra Manor in Final Fantasy VII. "The Nightmare Begins" is also used as the location's background theme.
- Aerith's ability to speak with the Planet is referenced, but after being drawn to the new world, she can't use it.
- An encounter with Sephiroth mirrors the events of Aerith's death, though this time, his appearance serves merely as a warning.
- Zack's BT, "The Price of Freedom," is a reference to two things. It refers to one of the lines said before his famous Last Stand ("Boy, the price of freedom sure is steep.") in "Crisis Core" and the song name that plays during that battle.
- When Warrior of Light asks Cait Sith about what will happen in the future, Cait Sith tries to tell his fortune and after several failed attempts, it predicts "What you pursue will come true. But you will lose something dear." It refers to when Cait Sith tries to predict Cloud's fortune and give a Foreshadowing of what will happen. In general, all three fortunes that Cait Sith gave to the Warrior of Light are the same fortunes he gave Cloud in VII, and he similarly reuses a fortune when he gives one to Edge.
- After Cait Sith's joined, he acted all friendly and trusting but secretly helping Vayne with his motives. It refers to Cait Sith forces Cloud to take him along, as he wishes to see what Cloud's fortune means. While in reality, Cait Sith to spying on Cloud and his allies and report it back to Shinra. However, just like in the original game, he ends up being a Reverse Mole on behalf of the party.
Final Fantasy VIII
Final Fantasy VIII
- Seifer calls the party "wusses" during their first battle, alluding to him calling Zell a "chicken-wuss" in Final Fantasy VIII. Seifer uses the insult again when Zell debuts in Opera Omnia.
- Laguna remarks that faeries have been visiting his head, which was his original explanation for the thoughts of Squall's party as they experienced Laguna's memories. Similarly, Zell mentions "the dream world" when he meets Laguna, which was the See Ds' own explanation for being sent into Laguna's memories.
- Laguna also asks Aerith if the "faeries" are the voice of the Planet, wondering if this makes him a Cetra as well.
- Squall is reminded of Quistis when Y'shtola finishes his sentences. Y'shtola brings this up again during Quistis's event.
- Seifer's desire to protect Yuna ("a girl who bears the weight of destiny on her shoulders") stems from his dream to be a sorceress' knight.
- The Disciplinary Committee expresses their admiration for Laguna due to the movie he starred in. Laguna is at a younger age than the present events of Final Fantasy VIII, so he does not recognize the characters who recognize him.
- Selphie fawns over Laguna when the two meet for the first time. Here, she calls him “Sir Laguna”, as she did after being returned from the past. In the source game, she created a blog from his adventures as recorded in Timber Maniacs.
- Selphie tries to have her expression "Booyaka!" spread among the party members. It finds hold in the younger delegation, but Lightning doesn’t get it.
- Selphie tries also to organize a “school festival” based on the Garden Festival she chaired. Making reference to the concert in Fisherman's Horizon, she successfully recruits Class Zero as acts. Celes, however, is taken aback at being roped in.
- Laguna's story of the "Cuchi-cuchi treatment" during Ashe's event is quoted directly from his response to Ward Zabac's last spoken words.
- Laguna once made the mistake of rambling about his life when he finally met his idol, Julia Heartilly, which tired him out, but helped him become a journalist. His storytelling is again on display for the rest of the Opera Omnia cast, but Ashe wants no part in it.
- Rinoa's event takes place in a flower field, referencing the location made famous in the opening and ending of Final Fantasy VIII.
- Rinoa's pose of pointing her finger upward, seen in her artwork and victory pose, references her gesture to Squall when they first met.
- The location of Quistis' event may reference the Fire Cavern, where she accompanied Squall to at the start of Final Fantasy VIII.
- During Cid Highwind's event, Irvine mentions the visit to the Lunar Base.
- In Chapter 10, Raijin mentions being kicked by Fujin, which was shown during the Disciplinary Committee's ending scene in Final Fantasy VIII.
Final Fantasy IX
Final Fantasy IX
- Vivi seems to be offended when Edge said that the manikins are lifeless creepy puppets.
- The location of Eiko's event may reference the Outer Continent where she is first recruited in Final Fantasy IX.
- Eiko cooking rock-fisted potato stew during her Lost Chapter is a reference to her cooking event in Madain Sari.
- In Chapter 9, Black Waltz 3 is fought by the party aboard their airship, just like its first boss battle aboard the Cargo Ship.
- In Chapter 11, Eiko remarks, "He's really ticking me off! Can I kill him?" against Exdeath, lifted directly from her line about Soulcage. Interestingly, both Exdeath and Soulcage are basically evil trees.
- Zidane and Eiko recite lines from "I Want to Be Your Canary" in Celes's Lost Chapter. Her response is also an allusion, seen above.
- Prishe can sniff out the gysahl pickles carried by Steiner, which were part of his method to smuggle Garnet through South Gate undetected.
- Steiner alludes to Quina during a discussion of delicacies in Prishe's Lost Chapter.
- When Freya meets the party, Zidane jokingly calls her "Christine" and "Ratchel" in reference to their reunion in Lindblum.
- Arc 2 Chapter 3 focuses on Final Fantasy IX, with appearances of the Ice Cavern, Iifa Tree, and Soulcage.
- Eiko mentions herself being a flautist during "Gentle Strength." Like Deuce, she uses flutes as her primary weapons in Final Fantasy IX. However, Eiko's rackets are her weapons of choice in Opera Omnia.
Final Fantasy X
Final Fantasy X
- In Garnet's Lost Chapter during the section, "Choral Bonds," when the party talks about songs that calm then down, especially Jecht, it brings to mind the Hymn of the Fayth that's used to calm Sin down for the party to get inside for the final dungeon.
- One of Auron's quotes, "This is your story. It all begins here." references the beginning of the game when he pulls Tidus from Zanarkand into Spira.
- Yuna alludes to Mt. Gagazet and Zanarkand when reflecting on the mountainous area of Chapter 5.
- Yuna tries to send Seymour after he's defeated for the first time, but fails. This may be an early hint that he has truly been revived in this new world.
- Shadow asking the party if they will "defeat [Seymour] and persevere or give up and die here" may be a reference to Auron's declaration to the party before fighting Yunalesca.
- Wakka's lament of dying in the middle of the desert may be a reference to when he was alone in Bikanel.
- Wakka hopes that Yuna will not have to go through with the Final Summoning if they are not in a world with Sin.
- When Wakka is told he is in a different world, he relates to Tidus and the feeling of being "sucked into another dimension."
- Wakka's first impression of Mog—a toy who can talk, and that Wakka isn't used to seeing real moogles—references moogles in his homeworld, where they are dolls used by Lulu and are not real creatures.
- Steiner's request to shake Wakka's hand may be a reference to Barthello's request upon meeting Auron.
- When Tidus arrives in Opera Omnia, he tries to reach Yuna by whistling.
- Seymour's recognition of Shadow being "possessed by the reaper" may allude to his ability to detect "the scent of the living" in Final Fantasy X, such as Auron being unsent.
- Both of Seymour's unique weapons (excluding his signature staff) are designed after monsters or entities related to him:
- His 35CP weapon, the Summoner's Great Staff, is based on Anima, the summon introduced in Final Fantasy X whose fayth was Seymour's late mother.
- His EX-70CP weapon, the Mortibody Staff, is based on the Mortibody which fights alongside him in the boss battle against Seymour Natus.
- Wakka teases Yuna's bedhead in Maria's event, which hearkens to a similar scene at Djose Temple.
- During Rydia's event, Seymour wants to see the summoner's hatred and grief for the death of her mother, as the sacrifice of his own mother fueled his resolve to destroy Spira and release them from their suffering.
- Jecht's initial remarks to Tidus in Chapter 11 ("You are all bones" and "You eating right, boy?") are taken directly from their encounter at Dream's End.
- During Lulu's event, she defeats a Flan after Wakka says his attacks aren't effective, which was Lulu's segment during the tutorial battles on Besaid.
Final Fantasy X-2
Final Fantasy X-2
- A discussion of Deuce's skill with the flute leads multiple party members to ask if Yuna can sing. Being pulled from the pre-Eternal Calm Spira, she is not yet aware of this talent, which was bestowed on her when she discovered the Songstress dressphere.
- After recovering her post-pilgrimage memories in Act 2 Chapter 4, Yuna mentions Rikku and hopes to journey together with Paine just like in their Sphere Hunting days.
- After Paine sees the party's airship, she makes a reference to the Celsius and how she first looked forward to taking a spin on it. And here, she even gets the chance to pilot the ship briefly.
- During Mog's Intersecting Wills she points out how Mog (VI) looks like someone in a costume; in Final Fantasy X-2 the Mascot Dressphere put Yuna in a Moogle costume, so Paine is speaking from experience.
- In Paine's Intersecting Wills, she and Yuna discuss the events of Last Mission and how they started to grow apart after the events of X-2 and renewed their friendship at that tower.
Final Fantasy XI
Final Fantasy XI
- In the chapter where Kam'lanaut and Eald'narche are the main villains, it's usually Lion or Shantotto who tells the party about them, but at one point the characters turn to Lilisette to see what she knows about the Zilart brothers. She says she knows nothing about them, because her Story Arc takes place several expansions after the brothers were the villains of the game and she wasn't even around yet.
- Later on, Lion, Shantotto, Prishe, Aphmau, and Lilisette discuss how all the rest of the party has strong bonds with each other because they journeyed together in their respective worlds. The five of them, on the other hand, don't really know each other at all, since each is from a separate expansion. However, they do know that they have one dear friend in common: the Adventurer (the player's character in XI), and resolve to fight for this world on their behalf.
- In the cutscene "A Taste of Twisted Death," after Eald'narche discards Kam'lanaut through a Torsion, the latter says "Why... What did I do to deserve... this", the same dialogue he spoke when his brother discarded him after his defeat in the mission "Return to Delkfutt's Tower" back in Final Fantasy XI.
- In the cutscene "Ace's Struggle," Shantotto mentions Stink Bats, an enemy in Final Fantasy XI, saying "You know what I think of doing someone else's work? I could count on one hand how many stink bats I give."
- When Lilisette meets Cait Sith and learns of his fortunetelling abilities, she wonders if the future is the "business of Cait Siths" in all the worlds, since hers is a time traveler.
- Iroha's journey through Act 3, Chapter 3 parallels her journey through Eorzea during XIV's crossover event. However, in Eorzea she lacked memories of her master and thought that all of their heroic deeds were her own until learning otherwise. In Opera Omnia, she remembers that she had a journey but can only remember her master's role in it, a complete flip of the previous situation.
- After her debut, Iroha meets Lion, Prishe, Aphmau, Lilisette, and Arciela in that order, similar to the events of the main storyline in XI.
- Act 3, Chapter 3's second part is titled "Ballads and Rhapsodies," referencing Caius's last name and the storyline that features Iroha, "Rhapsodies of Vana'diel."
- Shantotto's Intersecting Wills is essentially a Shout-Out to the add-on scenario "A Shantotto Ascension." Shantotto wishes for the gods' power and is willing to take it from her companions by force, turning against them to become the boss of the chapter with her own Manikin minions. She even discusses the possibility of another Domina and Belle appearing if she were to cross dimensions to go home.
Ivalice Alliance
Ivalice Alliance
- Vaan, Penelo, and Ramza have a discussion about Ivalice, their original homeland but from different eras.
Final Fantasy XII
Final Fantasy XII
- In the Lost Chapter "Thieves of the Sky", Fran is alluded to as the partner Balthier was separated from. An elaborate dialogue re: the viera ensues, comparing their kind to the miqo'te, of which Y'shtola is a member.
- The above leads to Vaan asking Y'shtola's age, to which the party takes offense, and is a reference to his faux pas in Eruyt Village that garnered the same reaction.
- Balthier relates to Cecil as a fellow airship pilot who feels burdened about freedom, referencing his story in Final Fantasy XII of escaping his ties to Archadia and his father.
- The desert setting of Ashe's event references the geographic location of her kingdom of Dalmasca.
- Penelo dances to Deuce’s flute. She is not yet aware of her future as a dancer, though.
Fabula Nova Crystallis
Fabula Nova Crystallis: Final Fantasy
- Hope and Rem discuss on how l'Cie, Focus, and Crystal/fal'Cie work differently in their respective worlds.
Final Fantasy XIII
Final Fantasy XIII
- Lightning being untrusting of Materia and Spiritus, regardless of their intentions, goes back to her home game where the gods of her world, the fal'Cie, treat their human pawns, the l'Cie, like playthings. By the end of her trilogy, she has outright killed her Top God, Bhunivelze.
- When Sazh meets Cloud, he said that the other worlds seem to have "strongheaded soldiers who want to do things alone", a reference to Lightning.
- Hope asks Vivi if he ever attempts to defy his fate.
- Sazh believes that Vanille's rainbows-and-sunshine attitude can actually wipe out the dark aura.
- Vanille's impulse to further explore the forest she is found in may be a reference to how she "followed the smell" of the Sunleth Waterscape.
- Sazh is the first person who pilots the airship to take the party to new locations, just as he did in Final Fantasy XIII.
- Sazh tells Eiko he is a summoner by bringing out his chocobo chick, though he was actually the summoner of Brynhildr when he was a l'Cie.
- The location of Utopia Niveus reminds Lightning of Eden.
Final Fantasy XIII-2
Final Fantasy XIII-2
- Serah comes from a future time than the Final Fantasy XIII party members, which is why Lightning does not believe at first that her sister can fight. She mentions her weapon is a transformed moogle, who is unable to appear in Opera Omnia.
- The location of Arc 2 Chapter 1 is reminiscent of Valhalla.
- For some reason, when Noel is first summoned to Opera Omnia, he ends up alone and he is stuck that way for such a long time that he suspects he is the last person alive again (other than The Voice he hears in his head, which is later revealed to be Ultimecia).
Final Fantasy XIV
Final Fantasy XIV
- Each of the playable XIV cast's weapons are those that can be equipped by players in the game. The only exception is Y'shtola's Burst weapon, Truth Seeker, which is her personal staff.
- The EX+ weapons are also the artifact gear for each class they represent.
- Y'shtola's 35CP Ability, Familial Ties, represents how in Heavensward, her sister Y'mhitra was needed to call her aether out of the Lifestream after using the Flow spell in the end A Realm Reborn.
- Alisaie's quote, "Oh, I can swim like a fish." references how not only is she a better swimmer than her brother Alphinaud, but also during Stormblood that she has the blessing of the Blue Kojin that allows her to breathe underwater.
- Alisaie's gameplay style incorporates the Job Gauge used by Red Mages in Final Fantasy XIV.
- Yda's EX Ability activation pose is based on her martial arts pose from Final Fantasy XIV: Stormblood's opening FMV.
- Act 2, Chapter 6 is focused on the casts of XIV and XI, and Lyse and Lion in particular.
- In this chapter, Papalymo attempts to sacrifice himself in a battle against the planesgorger, which is an extension of Shinryu, the same way that he met his end in XIV.
- Y'shtola's Dark Manikin casts Flow to teleport herself and the Thancred Dark Manikin away from Kam'lanaut, just like they did after the bloody banquet in Ul'dah. Instead of going blind, however, the Manikin is unable to wield enough power for the spell and despite getting away to safety, she gives her brilliance to the real Y'shtola before fading away.
- Lyse goes through a similar development arc in this chapter that she did in post-Heavensward, learning how to step out of Papalymo's and her sister's shadows and claiming her true identity back. This time, he doesn't need to die for her to do it, and he is able to support her through it.
- When the party first finds the Lyse Manikin, it is before they learn Yda's real name is actually Lyse. Yda claims that the Manikin is actually her sister first before getting encouraged to come clean, but it isn't exactly a lie — Yda is really Lyse's sister.
- Papalymo gives Quina some Archon loaf when the latter mentions they are hungry. Quina gleefully takes it, but laments the horrible taste, just like everyone else does, since it was never meant to be flavorful.
- When meeting Leonora, after learning she wants to be a sage Alphinaud explains that practitioners of somanoutics in his world are called sages, like his father. Leonora is impressed, but notes it sounds more like an academic title rather than a master of both black and white magic who uses their power in service to people, like in her world.
- Papalymo's Burst ability is Louisoix's unnamed spell that he used to seal away Bahamut. The name that Opera Omnia gives it, "The Far Edge of Fate," comes from the name of the story patch where Papalymo cast it to seal away Shinryu and died doing it.
Final Fantasy XV
Final Fantasy XV
- The Global release date of Noctis's event marks two years after Final Fantasy XV was released.
- The poses that Noctis and Ardyn demonstrate in the Act 2, Final Chapter cover art is reminiscent of their classic pose revealing their full Armigers.
- Gladio bringing up that he was able to defeat Gilgamesh where Cor was unable to brings up "Episode Gladiolus" where he survived a grueling one-on-one duel against the Blademaster to prove himself worthy as the "Shield of the King."
- Noctis relates to Quina in catching frogs, mentioning how he had to do the same. In Act 4 Chapter 1 of Opera Omnia, the party realizes that the declining frog population is a reflection of the weakened world. A researcher in Eos made the same realization, which is why she sent Noctis to catch frogs in the first place so she could study them.
Final Fantasy Tactics
Final Fantasy Tactics
- Ramza recognizes Cloud, The Warrior of Light, and Vivi as a swordsman, a knight, and a black mage, which possibly reminds him of the job system in Final Fantasy Tactics.
- Similarly, Agrias is thrown off by the "motley" assortment of gear that various knights in the party wear, since she's probably more used to uniform armor types (perhaps as a reference to generic knight units).
Final Fantasy Type-0
Final Fantasy Type-0
- The Japanese event names for Final Fantasy Type-0 characters are taken directly from the Nameless Tome, which describes each member of Class Zero by a key personality trait.
- Rem asks King to hide her illness from the party, which is the same favor she asked from Dr. Arecia Al-Rashia.
- Rem and King reference that people in Orience lose their memories of the deceased, which would not happen to them outside of their homeworld.
- Machina is alluded to when King remarks he would know how to help Rem, and when Rem observes the relationship between Vaan and Penelo, childhood friends. The latter comparison is brought up again after Machina joins the party.
- King refers to Mog as a "Military Operation Guide", which is the official designation of Moglin and the other moogles of Akademeia.
- The death of a chocobo in Ace's event references the deaths of Izana and his chocobo Chichiri in the opening of Final Fantasy Type-0. In both cases, Ace expresses his guilt at being unable to save them.
- Later, Ace ends up summoning Chichiri into Opera Omnia by himself, and from then on he and Machina take care of her together.
- Cinque's pose when activating her EX Ability resembles her pose in the official Formal Attire render.
- Act 2 Chapter 9 takes place in Akademeia, summoned by Ace after the Cloud of Darkness mentions Dr. Arecia and gives him his brilliance. All other Class Zero cadets (with the exception of Machina) do not have their memories of their deaths after the battle with the Rursan Arbiter, which causes Ace to summon Akademeia where they could live in a world where they would not be forgotten.
- Selh'teus explains to the party how he turned against the Zilart brothers in the distant past, dooming his own people the Kuluu and turning them into Beastmen of karma and vengeance — the Tonberries. Though he doesn't mention Tonberries by name, he happens to be saying this to Kurasame, who is notable for having a Tonberry partner.
Final Fantasy Crystal Chronicles
Final Fantasy Crystal Chronicles
- All of Layle's 5* weapons reference various locations from the sub-franchise:
- His 15CP weapon is called Tida's Phantom, a reference to the town called Tida Village and its actual state, deteriorated because of the miasma and invaded by hordes of undead monsters.
- His 35CP weapon is called Passio Kilanda, a reference to the Kilanda Islands and most of the features of it, since the weapon is fire-like and the Islands are volcanic.
- His EX-70CP weapon is called Rampage Jegon, a reference to the Jegon River and what happens when the river gets out of a dry season if the Veo Lu Sluice gets uncongested.
Final Fantasy Crystal Chronicles 1
Final Fantasy Crystal Chronicles
- Ciaran is a Canon Foreigner - his appearance is taken from the default Clavat on the cover of the game and his name comes from the manga adaptation.
Final Fantasy Crystal Chronicles: Ring of Fates
Final Fantasy Crystal Chronicles: Ring of Fates
- Chelinka's non-playable status is carried over from her original game, where she appears alongside Yuri but only Yuri is controllable in battle. She eventually starts appearing in battle and helping out as a "buff" from Yuri's EX ability.
Final Fantasy Crystal Chronicles: Echoes of Time
Final Fantasy Crystal Chronicles: Echoes of Time
- Sherlotta's cat form is referenced due to Lann and Reynn knowing about it from their familiarity with their world's version of her. She intimidates them into secrecy.
- Sherlotta's modified HP ability is "Hurl Staff," wherein she hurls the magic staff that the Undead Princess haunts. She did this once in Echoes of Time against a boss, but it also references the abuse she regularly puts the Undead Princess through.
- Sherlotta references Larkeicus when Jegran tries to capture her and use her for her ability to create more crystals, since Larkeicus did the same thing.
Final Fantasy Crystal Chronicles: The Crystal Bearers
Final Fantasy Crystal Chronicles: The Crystal Bearers
- Amidatelion gives some background about the Yukes and their status as Animated Armor, which helps clear up some out of universe fan speculation about them.
World of Final Fantasy
World of Final Fantasy
- The characters in Lann and Reynn's event cutscenes are all in World of Final Fantasy. The twins recognize them but the connection is not mutual due to the characters hailing from their original worlds rather than those in Grymoire.
- Lann and Reynn, although naturally Jiant, are stuck in Lilikin form in Opera Omnia. This could be an inverse reference to their original game, and to the natural Lilikin population of Grymoire.
- Tama and Serafie are featured in the image for Lann and Reynn's 35CP armor.
Stranger of Paradise: Final Fantasy Origin
Stranger of Paradise: Final Fantasy Origin
- Jack's Burst ability, Soul of Chaos, has him punch the target four times with his fist glowing with different elements before shattering a crystallized mass, similar to how he destroyed the Final Boss of his game.
- Jack serving as a Stealth Mentor to the Onion Knight references his decision at the end of the game to become one to the Warriors of Light as well.
- Several of Neon's abilities are taken from her different forms: Asura and Inferno are connected to her Fiend form, Marilith, while Firebringer is an attack she used as Chaos Advent and her Fiend of Fire LD is based on the Blaze attack from Chaos Advent as well.
Dissidia Series
Dissidia Final Fantasy Series
- Some characters have the same victory pose they had in Dissidia Final Fantasy, Dissidia 012 Final Fantasy and Dissidia Final Fantasy NT.
- In Chapter 8, Lightning faces Garland, who was her designated antagonist in the story of Dissidia 012 Final Fantasy.
- Terra loves Mog's fluffiness. This gets extended to the Mog from her own game when he gets summoned to this world, too.
- Ability animations that show summoning (e.g. Rydia and Lann & Reynn) sometimes resemble Yuna's abilities from Dissidia 012 Final Fantasy; only the summon's elements or parts of them are shown to reduce animation complexities.
- The Warrior of Light seems to have vague memories of Prishe when he first meets her, referencing their history from the Dissidia games where she was the one who gave him a true name.
- This gets referenced again in Act 3, where she's one of the few people with Ripple-Effect-Proof Memory and remembers him fully. She reveals that she remembers the events of the other Dissidia games, including the fact that she gave him a name (though she doesn't reveal what it was).
- In Bartz's Force attack, he gives Squall his chocobo feather good luck charm before they attack the enemy, just as he did in Squall's storyline in Dissidia.
