Badass: His first major action in the first game is to walk into a monster-infested castle by himself (this is before he gains any of his dragon forms, by the way), head straight to the throne room, and beat the crap out of the boss monster, thus freeing the town. And things just go up from there.
Fate Worse than Death: Myria sends Ryu into one in The Dragon Warrior: the dimension of the Soul Eaters, who would slowly nack at his soul for all eternity, with him still conscious and unable to die.
Fusion Dance: Agni, the most power dragon transformation, has the entire party melding together into one being.
Guide Dang It: How to get most of Ryu's dragon transformation sets require having certain equipments with him, all of which are well-hidden all over the world map. There's no in-game mention of even what items one needs.
The elders living in the ruins where Ryu gets his training will tell him something like, "You need to complete the first level and find the DragonSD." But you still have to puzzle out where to find the equipment. The most powerful transformation is only mentioned once, on a tablet you can find in a well on the world map; it's quite possible to beat the game without ever finding it and thereby getting the "bad" ending.
Instant Armor: In The Dragon Warrior manga, Ryu's ultimate transformation is switched with this.
Heroic Mime: For most of the game, anyway. After saving the king of Winlan, he says "Well, there is one thing." in response to the king asking how he can help.
Averted completely in The Dragon Warrior and Princess Of The Wings mangas.
I Will Find You: His main motivation is to find his missing sister.
Outdoor Bath Peeping: Ryu is practically forced to do this as part of the gameplay, so he could see a special tatoo on a woman's back, as the tatoo is the key to figure out how to open a safe. Did I menctioned the woman in question is the Queen of Tuneland and because of the water's reflection, Ryu got the wrong image of the tatoo?
Official Couple: Probably the only couple who gets anything close to a hint of having succeeded in the backstory of the second (and third) game.
The manga adaptations also plays up their relationship, including the Spin-OffLitle Adventurer starring their own child.
Our Founder: Or more aptly, "Our Hero". Ryu gets a nice gold statue in Camlon for his efforts in helping eradicate the monsters infesting the main castle.
Power Limiter: The Light Dragons have their powers sealed off in fear of how dangerous they were for the world. So, once the Dark Dragons have the upper hand thanks to Myria, Ryu is forced to go through trials in order to unseal his powers.
Voluntary Shapeshifting: Comes with being part of the Dragon Clan. This version of Ryu seems to be the most adept at it, as he can shift into a dragon form and stay that way as long as he wants without losing AP.
Arson, Murder, and Jaywalking: In The Dragon Warrior she considers peeping to be more vile than poisoning her father.
Bag of Sharing: Even though Ryu is just sleeping on one of the castle's rooms, and Nina never goes to visit him, she gets to use all of his inventory items during her tenure as the main character.
White Magic: She uses mainly healing and support magic, with one paralysis-inducing spell and a few Holy Hand Grenade spells only for use against undead foes.
Thought it is subverted later, when there's a wolf-guy sitting on a rocking chair, and one NPC comments he was atacked by the dragon that appeared years ago. And there was no other wolf-guy in the prologue.
Canon Foreigner: In The Dragon Warrior manga, he gets 3: a wife, a child and a brother-in-law.
Dead Little Sister: The Dragon Warrior manga gives him one in the form of his wife.
Doesn't have enough in his Mana Meter to back it up, though.
Also the spells start off very powerful, but they'll start becoming less useful later on, as he never learns any new spells. The later parts of the game will see him relying more on physical attacks, or fusions with Karn/Danc.
Master of Unlocking: He can just walk his way out of prison, he only stays because he wants some peace and rest.
Play Along Prisoner: After getting tossed into Auria's jail, the party is promptly let out by Karn, a fellow prisoner. Karn then goes back to sleep, indicating he could escape anytime, but took advantage of his 'incarceration' to catch some Z's.
Secret Art: Fusion. This was apparently the reason the thief kingdom was destroyed by the Dark Dragons. You can find masters hiding in a few places and they will impart their wisdom to Karn.
Thieves' Guild: He was raised in one. After completing his introductory quest, the guild master says there is nothing more to teach him and even offers him leadership of the guild whenever he's ready for it.
It's All My Fault: In Chapter 5 of The Dragon Warrior, he sells out an ancient and very dangerous weapon to Judas, believing it was just junk. He then gets shocked when Judas use it on the Dark Dragon's own town. This is what determines him to join the gang at the end.
And once the sub-plot involving the attack on Prima is done, there's little left to even do underwater, making his powers useless for the remainder of the game.
Bizarre Sexual Dimorphism: While Ox and all males of his clan are big muscular men with bull-looking legs, all women are human-like besides a very small set of horns on their head.
Literal Split Personality: After being trapped in his dream, Mogu was split into 6 personalities: Anger, Humor (actually Pleasure), Fear, Sorrow, Reason and Courage. Only when the 6 come together can Mogu join the party.
Lotus-Eater Machine: The Dragon Warrior manga turns his dream sequence in this, having him being trapped in an everlasting peaceful and happy version of his home.
Tunnel King: Besides being his map ability (dig on marked areas for secret chests), it's his only "spell" (dig to escape battle).
Wolverine Claws: His mole-claws and whole weapon set of metal/steel claws.
Heroic Sacrifice: Sieg and Rai/Raifel, both in-game and in Princess of The Wings.
Mentors: Both Sieg and Raifel serve as Nina's instructors at the start of Princess of The Wings.
No Name Given: In the original SNES version and the english GBA re-release.
The Dragon Warrior manga averts it by giving the fist two the names Kalu and Ilu. Years later, the GBA port gives the three official names.
Odd Couple: Their characterization in Princess of The Wings: Sieg is the serious guard, following the King's orders and not too happy on letting Nina go on a dangerous quest; while Raifel is more easy-going, understands Nina's feelings to go help Ryu and disregards orders to help her in her goal.
Palette Swap: Sieg/Rai use the same sprite, while Enon is just a red colored swap.
Red Shirt: As a funny detail, Enon does use a red uniform, and he survives.
Shout Out: They were given names in the GBA re-release, with Sieg and Rai being a reference to two characters of the Princess of The Wings manga adaptation.
Tragic Monster: In The Dragon Warrior, the two servants of the Karma wizard are revealed to be Kalu and Ilu, ressurected as zombies and brainwashed to serve him.
Taken for Granite: She does it to her own townfolks in the intro, to protect them.
Reverse Mole: In The Dragon Warrior, she's faking siding with Judas in order to defeat him. Subverted seconds later, when she reveals it was just a ploy to get the Goddess Key on Ryu's possession.
So Proud of You: To Ryu in the "good" ending (where you reveal Tyr/Myria's true form by using Agni.
Large and in Charge: The concept art of Zog's Dragon form seems normal enough (compared to other Dragons in this series, anyway) until you actually get to fight him. Only his head was shown throughout the entire battle.
His normal humanoid is taller than everyone else as well.
Mood Swinger: In The Dragon Warrior, he switch between a honorable warrior and an Omnicidal Maniac at the turn of a wrist. Later revealed he was kind all along, and his swings were caused by his internal struggle with Myria's brainwash.
Last of His Kind: Ryu - well, at first, anyway. Dologany, the city that falls halfway through the Infinity dungeon, is home to a lot of dragons.
Paper-Thin Disguise: He replaces Baba in the tournament, only needing to show the axe he got from him as proof. And that despite Baba being a recurrent participant, and a musclebound giant lumberjack.
Power at a Price: The test he must undergo to obtain the ultimate power Infini finds him forced to choose one of his allies to sacrifice in exchange. He selects to choose no one and wins.
Ret Gone: He is forgotten by everyone in his hometown of Gate. You find out late in the game that Aruhamel erased him from their minds, along with his sister and father. This facilitated Habaruku's infiltration under the guise of Father Hulk.
Boisterous Bruiser: Katt likes to joke and make fun of her enemies while she's beating the hell out of them. This also counts as one of her game skills, as Katt uses it to break Ryu's concentration during their initial battle and later can use it against normal enemies to make them ignore her party and attack her instead.
Cute Bruiser: One of the party's heavy-hitters and the only character besides Ryu with the ability to counterattack.
Cute Monster Girl: Except for being covered in fur from the waist down, Katt, a female Woren, is a fairly standard cat girl. In contrast, Tiga, a male Woren, is a Beast Man with a tiger head.
Dance Battler: The game literally describes her as this.
The Ditz: Bow asks Ryu to take her along as he quickly realizes Katt isn't the sharpest knife in the box and if she's allowed to stay with him, she could destroy the house he was intending to fix. Rand even wonders if there's a way to get inside of Katt's head and rewire her brain to make her smarter.
Last Of Her Kind: She's never seen another of her kind. Until Tiga's entrance, who tells her that there are very few of them spread all over the world.
So few that when Ryu and her arrive at the monster hunters's place, they ask Ryu to sell her to them.
Running Gag: In the Japanese version, constant mention of her small cup size. If Salvador is recruited as a Township's resident, Katt will ask him to give her a bigger chest when it's her turn to get a statue. (He doesn't.)
Pettanko: See above.
Pintsized Powerhouse: Katt is short, thin and flat chested, yet she is the strongest character in the game and her shamanized form cranks it up to eleven.
Stripperiffic: Katt's outfit is made of fingerless gloves, toeless boots, a bra... and nothing else. Her shamanized form ditches the bra, replacing it with a tattoo painted around her torso.
Women Are Wiser: Inverted, as Katt is the dumbest member of the party and gets called on it a few times. It's implied that her low intelligence is simply the result of her poor education, as she was raised to do nothing but fight.
Your Answer to Everything: Katt tries to fix everything using brute force, death threats and old fashioned violence. The funny part? It works.
Royal Blood: Though her parents ignore her existence, due to her wings and one prediction stating that once a black-winged wyndian is born in the royal family, misfortune would strike the country.
The Atoner: Mixed with a huge dose of survivor's guilt.
The Casanova: He attempts to play this trope with Nina and Katt. Nina gets disturbed, and Katt gives him a savage off-screen beating. Much later, we discover he fits perfectly the trope among his people, and his princess loves him dearly.
Geo Effects: The effect of the skill depends on the environment during the battle: while a forest background calls forth trees, a desert one will have exploding cacti.
Chef of Iron: Slightly subverted in that he's a good cook for his race only, considering most of their meals consists of roaches, flies and worms. Otherwise, he was such a well-known chef that a Cooking Duel was set up to demostrate he was the true prince.
Shout Out Theme Naming: All characters related to the resistance are named after Disney characters. Yes, Tiga's real name is a reference to thatTigger.
Stuffed into the Fridge: Claris is tortured by Habaruku in front of the (infiltrated) party and Tiga. Tiga then becomes the victim along with his love, setting in stone the party's motivation to take direct action.
Deadly Game: Argus wanted to turn the contest into this, thinking it'd be more exciting and satisfying for the public if Katt died during/after the bout.
Spot The Impostor: Kuwadora, who poses as Jean at one point during the game. Somewhat subverted in that nearly everyone at the castle knew he was full of crap, but went along with him anyway.
Shout Out: Trout and his rich neighbour/rival Kilgore are named after Kilgore Trout, a recurrent character used by writer Kurt Vonnegut.
Manson is arguably named after cult leader Charles Manson, and his summoning of undead (and his position as Father Manson) may be references to Charles Manson's cult "The Family".
Spell My Name with an S: This guy needs a break. He's spelt Aruhamel in the dialogue, Aruhameru in the Boss Battle and Alheimer in the credits.
Habaruku/Habalq V a.k.a. Father Hulk/Halq
Abusive Parents: While he isn't shown to be outright abusive to Ray, he brushes him aside as "worthless" when he hears of his defeat at the hands of the heroes.
Chekhov's Gunman: Remember that slightly goofy priest from the prologue, Father Hulk?
Cold-Blooded Torture: After abducting Father Ganer, he attaches him to a machine in the facility beneath the Grand Church and uses his life force to power Deathevan. If this doesn't sound bad enough, he tortures him like this for ten years.
Human Sacrifice: In addition to offering sacrifices to Deathevan, he attempts to offer up Patty's life to open the portal to Infinity and release demons upon the world.
Self-Imposed Challenge: Barubary challenges Ryu to fight him alone. It's actually easier to fight him solo if you stock up on Roasts and Wisdom Fruit then just spam G. Dragon 3 times. If you win he gives a vague hint where the ultimate armor is.
Deathevan, a.k.a. Father Evans/St.Eva
Ax Crazy: After Ryu hits him, it all goes downhill for him.
As Long as There Is Evil: Deathevan feeds off human darkness. Also, Ganer explicity states in the good ending that, if Ryu can eliminate hate and despair on the world, he'd never be able to return.
Nietzsche Wannabe: "I will bless the world... with desperation. All living things will look up to me and feel happiness as they accept death."
Not Quite Dead: As Ryu later discovers, Deathevan only lost his physical form after his final defeat. He decides to peform an Heroic Sacrifice to take his mother's place as the guardian of the mountain... or if you get the best ending, your father will take your place and crush the whole mountain with the TownShip!
The Berserker: Turning into the Kaiser Dragon at first turns him into an uncontrollable force that targets both allies and enemies alike. There are only two gene combinations that avoid this, the simpler one reduces his stats gained from the transformation so much you might as well not bother and neither one is even hinted at in-game.
Gentleman Thief: He'd never hurt the townfolks as he steals to survive. Although after the timeskip he "jokingly" asks Ryu if he wants to go slaughter the population of Mc Neil together. He also states, vaguely, that "I wasn't even able to control my own power. All I did was just run around attacking things..."
Early-Bird Cameo: His adult form is seen almost at the beginning of the game.
Evil Counterpart: To Ryu. Both have similar starts, and while Teepo is attracted to Myria's view of his powers and the Brood and sides with her, Ryu chooses his free will and confronts her.
Expy: Seems to be channeling Magus's design in both looks and in combat to an extent.
Made a Slave: He was going to be sold just as Rei appeared, thinking he was the dealer's child, and that in order to protect him he'd surrender easily.
Miss Fixit: Need to fix the Lighthouse? Bring in Momo! The ship isn't working and nobody understands why? Call Momo! There are problems in the Plant? Gee, I wonder who can help us?
Porn Stash: Her father's studio is practically a porn library.
Heavy Sleeper: Half the time you see him in the camp, he's soundly asleep.
Magikarp Power: Thanks to him starting at Level 1. Most people disregard him right off the bat, while others take advantage of the Masters system to raise him into almost a game breaker.
Big Guy Fatality Syndrome: An unusual take on the trope, in which simply choosing to participate in the final battle turns out to be the heroic sacrifice. The others don't know until it's already too late.
Properly Paranoid: He has all his manor's doors and windows nailed shut in fear of bandits, though in reality he has been hearing the ghosts a little too much.
Laser-Guided Karma: First half of the game he gets scotch-free from having used the party to rob McNeil. After the Time Skip, he finally gets some payback from Rei/Weretiger.
The second encounter as well, unless you Level Grind a while on Mt. Myrneg, then you can actually fight them off. (But still not defeat them.) The Prima Guide messed up this fact (listing it at the first encounter, and saying the second one is unbeatable), giving fuel to the rumors above.
Would Hurt a Child: Literally stabbing Ryu in the back on the top of Mt. Myrneg, and threatening to kill Nina, a princess from Wyndia, in the game to make Ryu surrender. Yes, they are bastards enough to do it, too.
Beyd
Arranged Marriage: Shadis' father Sinkar has approved of Zig to take her hand, as he wants a strong sailor to marry her. It will become formal once Zig fixes the Lighthouse.
Badass Normal: The badass part depends on the player's way of training him: if one is dilligent enough, Beyd can end the battle in 1-2 hits.
The Cameo: in IV. It's not hard to forget how he ended up in that game.
The Smart Guy: He's basically the Guildmaster's bookworm.
Shout Out Theme Naming: All characters from Raphala are named after fishing gear: Beyd is "Bait", while Zig, Sinkar and Shadis are named after the "Jig", "Sinker" and "Shad" baits.
The region itself is named after a brand of fishing gear. [1]
Statistically Speaking: You can overtrain him, make so he takes 1 damage from your + 30 level party and defeats Zig in a few rounds (maybe while him not even landing a punch), and still the next cutscene has him all injured and bandaged.
Training from Hell: One of the method to train Beyd is to smack him up as strong as possible, so he can build up ressistance. For a guy like him, that probably wasn't pretty.
Triang Relations: Type 4, Beyd wants Shadis, but she's engaged with Zig.
Sealed Inside a Person-Shaped Can: He has sealed within himself the essence and powers of the whole Brood, which once defeated materialize in the allmighty Infinity Gene.
Myria
A God Am I: She herself. She seems to be not so sure at the end, though.
Early-Bird Cameo: She appears right on the beginning in Ryu's dream.
Fan Disservice: She wears Godiva Hair during her battle. Except for her default attack, where her guts rupture out to slap someone as her hair flies back.
Nightmare Face: Just see her sprite during the Holocaust attack.
Our Angels Are Different: She's usually seen assuming the form of a winged woman with light all around her.
There is a distinct Red Right Hand/Uncanny Valley effect (I'm not sure which trope is more appropriate) when you realize that her wings are upside down.
Power Source: It is stated the chrysm, the fuel for all machinery on the world, is a medium for Myria to provide the world with her magical energy.
The Scottish Trope: The Urkans (and Guardians) are prohibited to speak the name of their goddess, or that of her enemy the Brood.
Well-Intentioned Extremist: She's protecting life and the world by sending the technology of Caer Xhan to humanity via the Black Ship in manageable doses, keeping the Desert of Death away from humanity with an ocean barrier, and stopping the Brood from destroying the world with their power. Unfortunately, sending machines to humanity means making humanity dependent on her, keeping the Desert away from the rest of the world prevents humanity and Yggdrasil from colonizing and restoring it, and protecting the world from the Brood means either killing them all or imprisoning them in a false Heaven.
The Berserker: Same as in III. Now one needs to find all Endless in order to control the Kaiser Dragon.
Big Damn Heroes: Subverted at the start of the game. Nina falls down a cliff side and Ryu jumps heroically to her aid...and just then notices Nina has wings. Cue Ryu's smacking the ground face-first.
Despair Event Horizon: When Rasso slaughters the innocent civilians of Chek, he falls into an Heroic BSOD. This is especially apparent in the manga adaptation.
In Japan, this is in fact such a popular pairing (despite the fact it counts as either Twincest or even Selfcest) that it's even earned its own Portmanteau Couple Name.
Hellish Pupils: The manga's depiction of the Dragon's Eye.
This Is Unforgivable: In the manga version, Ryu screams "I won't forgive you" during his Heroic BSOD...right before unleashing THE KAISER DRAGON.
Twin Telepathy: With Fou-lu, probably closer to Twin Empathy. Depicted more blatantly in the manga (especially so starting around chapter 19) and is actually the major driving plot-point.
Morality Pet: Serves as one for Cray, in the beginning. One suspects that the only reason the party got to six members at all is because Nina kept telling Cray to give them a chance. Cray outgrows the need for one eventually.
Narrator: Each chapter ends with a short narration from her.
It's Personal: With Yuna, after he finds out what he did to Elina.
Jerk with a Heart of Gold: In the beginning, he's really something of a bully. He all but forcibly conscripts Ryu into the party because of his prophetic dreams leading to Elina, and when they don't pan out, considers ditching him. He also beats up Marlok's bodyguard, forces his way into his house, and demands that he give information about Elina while offering nothing in return. His behavior toward the other members of the party, especially Ursula, isn't that great either, and he often ignores their needs entirely unless Nina speaks up for them. And that's not going into his illegal entry into The Empire, which caused a lot of people a lot of problems which he never apologized for. Despite all this, he really does care for Nina and is protective of both her and the party in his own way. And, through the wonders of Character Development (and a few rounds of Break the Cutie) he pretty much drops the "jerk" part completely by the end.
Love Redeems: Cray has his own experience with this when he must ultimately euthanise Elina with the Dragonslayer.
Morality Pet: Nina, in the beginning. One suspects that the only reason the party got to six members at all is because Nina kept telling Cray to give them a chance. He outgrows the need for one eventually.
Nice Job Breaking It, Hero: Finding Cray and Co. illegally across borders, assaulting Imperial soldiers nearly broke the ceasfire The Empire had with the Western Alliance, and by manufacturing a copy of the weapon that Cray also stole (and gave away to Nina, who gave it to Ryu, who broke it,), The Empire was able to modify the treaty between the countries so that they could seize more land on the border, so that they could more easily search for Ryu. A great deal of trouble the Nakama face in the later Acts could have been avoided entirely if Cray has simply searched for Elena through proper channels. Well done, Cray.
What the Hell, Hero?: He faced a LOT of chewing out from the Ludian court for his illegal entry into The Empire and his loss of a priceless hierloom and symbol of the kingdom. His response was to throw it right back.
Ursula and Ershin also bluntly call him on bad leadership decisions.
Ershin/Master
Animated Armor: Deis' aura granted the armor a will of its own.
Jerkass: Deis was hardly warm to Ershin when it was revealed that it had a mind of its own. She absolutely refused to go back inside, cruelly insisting it was never alive and that it should "go back to being a suit of armor," and then leaving it alone in Chek. She eventually realized how selfish this attitude was when Ershin gave up it's life to protect the Abbess, and goes back into the armor to rejoin Ryu.
Because You Were Nice to Me: It is implied in the game (and even more in the manga) that the reason Scias left the employ of Ludia was because he was touched by Nina's optimism and faith in him.
Blinding Bangs: Doesn't stop him from being damn good with a katana, though.
Dummied Out: Scias naturally-gained "Analyse" spell was removed from the english version. It can still be assigned to any character with a Game Shark, though in a buggy state.
Drunken Master: Scias' original characterization in the Japanese version had him constantly falling-down plastered, and still pulling off all the fancpanciest of moves he does in battle. Imagine what he could accomplish sober.
Heel Face Turn: He entered the party in the employ of Ludia to spy on the party, but he reneges and returns the money.
Hidden Heart of Gold: He tries to project the image of a Badass mercenary, but his campfire conversation and certain other events reveal that he's not nearly as devoid of concience as he pretends.
Even Evil Has Standards: During her very brief time as an antagonist, she shows disgust with Rasso when he slaughters the women and children of Chek.
invokedIn the manga, she explicitly describe's Rasso's actions as unforgivable and begs Nina to not think of all Fou Empire soldiers as being similarly monstrous.
This in fact SO traumatises Ursula in regards to sea travel that when Khan knocks on the bottom of the ship later, Ursula is convinced it's actually the sea lice who are OUT TO GET HER.
Crutch Character: You only control him during his segments of the story, and he's all you'll need. Fou-Lu starts off with all of his dragon forms, and is at such a high level that despite soloing battles he isn't likely to gain any levels, nor does he even need to.
Do Not Taunt Cthulhu: The Empire doesn't want him around and makes repeated attempts to kill him, which in the end drives his mad and causes him to burn the empire's capt ital to the ground, in addition to of course, killing nearly everyone sent after.
Driven to Villainy: At first a fairly decent warrior god, but then The Empire that he built keeps trying to kill him after he awakes, putting him through some, traumatic, experiences to say the least.
Spared by the Adaptation: In the manga ending, Fou-lu is shown to be alive in the manga adaptation and lives with Ryu travelling the world. The manga ends with the two heading towards Wyndia, Fou-lu wishing to learn what Ryu sees in humanity.
I Know Your True Name: Fou-lu ends up a victim of this...twice over. Once during the botched summoning that called him to the world (and split him in half), the other via Yohm having a bit too much knowledge re name magic.
Love Redeems: Once he meets up with Mami, he starts down this path. Then Yuna brutally tortures her and uses her as a sacrifice for the Carronade. Ouch.
Nice Hat: He gets one after he kills Soniel and becomes emperor again.
Sympathetic P.O.V.: The player controls him at several points throughout the game, allowing them to witness various Pet the Dog moments and humanizing scenes.
In the Comic Blade Avarus manga the last page of Chapter 19 has another example (which, of note, occurs right after the manga's depiction of the above scene). Fou-lu is holding Mami's bells, begging Ryu to hurry up and come, whilst giving a postively feral smile. And this is after being run through with the Dragonslayer.
The manga (in its Third Option Ending) starts with Fou-lu going into his "The Reason Humans Suck Speech", and Ryu agreeing and choosing to go with what appears to be the Bad End. He gets better, though.
Twin Telepathy: With Ryu. Again, closer to Twin Empathy and considerably more explicit in the manga version.
Unwanted Revival: The Fou Empire's leadership in general sees him as this. This even goes to the point of official propoganda declaring him the "Dragon Of Doom", and Yohm explicitly states his reawakening is an Unwanted Revival.
Dragon with an Agenda: Acts as one to Emperor Soniel. Exactly what he really wants is never made clear in the game, but the manga implies that he has his eyes on the throne.
Evil Is Not Pacifist: Subverted. He claims to be a "pacifist" and a "man of the arts", but this is just an excuse to save his own ass.
Fan Nickname: "FUCKING YUNA!" seems to be turning into one on this very wiki.
Karma Houdini: Probably one of the most notable examples of this in video games, especially since he pulls it off twice.He's directly responsible for nearly every bad thing that happens in the game, and to get the best ending, you have to let him get away with it.
To make it even worse, the epilogue makes it very clear that he's already planning to rebuild his operation and do it all again.
Love Hurts: It will if he has anything to say about it. Suffice it to say, Yuna is the last person you want to introduce your significant other to.
Mad Scientist: He has actually been described as Breath of Fire's answer to Hojo, which pretty much hits the nail on the head. To some, Yuna is even more detestable due to being a Karma Houdini.
Meaningful Name: Yuna translates to "night", which is a nice reflection on the type of person he is.
Stupid Sexy Flanders: While he doesn't exactly look bad in the original game, the manga plays up his appearance and makes him more handsome. Justified since young women are a target audience of the publisher.
I Know Your True Name: Yohm engages in this in a very literal sense with Fou-lu—even explicitly commenting to him that the very act of speaking Fou-lu's name sends ripples in the world to such an extent Yohm can be inevitably led to wherever he is. Yes, name magic can be used as essentially radar to find Endless, for values of sufficiently powerful Endless.
Just Following Orders: Yohm even admits as much before committing suicide by immolation.
The Unfought: Like Rasso and Yuna, he is never actually fought during the course of the game. Given his age and physical state, though, it's probably justified.
Sissy Villain (bordering Camp Gay): Rasso speaks in a very effeminate way in Japanese (to the point it can be described as the Japanese equivalent of Camp Gay) and also has rather effeminate mannerisms. In the 4-komas included in the manga Ryu even refers to him as "okama"—which was translated to "THE GIRLY MAN" in the Fan Translation.
Shout Out Theme Naming: Rasso's three robots are named "Joh", "Ymechaf" and "Ight". Put together, they form "Joy Mecha Fight", a NES fighting game.
The Unfought: Even though you fight his summons, you never get to battle him directly. The closest one gets is burnination by Kaiser Dragon, and that's not exactly controllable. Still very satisfying to see him annihilated by Kaiser though.
We Hardly Knew Ye: Has a grand total of about two scenes before Fou-lu slices his head off.
What Happened to the Mouse?: Soniel's ultimate decapitation was, as noted, censored from non-Japanese versions of the game, thus resulting in this happening re his storyline in English versions.
We're not shown how it happens, but it's made pretty obvious that Fou-lu kills him.
Mami
Appalachian Accent: With a wee bit of Scots thrown in for good measure (justified in that really deep Appalachian English DOES still use some Scots idioms like "ye ken").
Probably Capcom USA's attempt to deal with the original Tohoku Regional Accent, though again (much like how Fou-lu's Keigo got turned into Ye Olde Butcherede Englishe) a bit of an exaggeration compared to the original Japanese.
Stuffed into the Fridge: Or in this case, the Carronade. Fou-lu's reaction when he finds what caused the hex he was targeted with is pretty much classic for this trope, though.
Being headless wasn't the only thing biologically wrong about those, either.
Winged Humanoid: A bit of a subversion to the usual Breath of Fire Nina Trope. Her "wings" are in fact genetically engineered air filters—basically modified gills or book-lungs.
Lin
Cat Girl: Quite possibly the only one in the entire franchise who is not a tiger-girl, in fact.
Body Horror: What his contracts tend to inflict on the Chosen. Odjn himself happens to be a rotting corpse crucified against a wall.
Et Tu, Brute?: He was pinned to that wall due to Elyon's rejecting their link, and he is pissed.
Gentle Giant: Particularly compared to Chetyre and Dva, who are both complete basket cases. He calls Ryu his "little friend" and breaks their link after the sky is finally opened.
Grand Theft Me: A game over by maxing Ryu's D-Ratio will show Odjn bursting out of his body.
Jerkass WoobieDestroyer Of Worlds: Yeah, he's an entitled jerk, but anyone who's seen all his cutscenes knows this kid is severely messed up. A particularly disturbing SOL sequence shows Bosch killing a Genic five times his size at his father Vexacion's demand - before his voice broke.
Asskicking Equals Authority: Elyon became head of what would become the Regents by kicking Deamoned's ass when he was still a Chosen of Odjn.
The Chessmaster: Almost everything in Sheldar ultimately boils down to a Xanatos Gambit of some sort by Elyon. The entire establishment of the D-Ratio system and the Regents, the plan to have Ryu become a Chosen of Odjn, and the backup plan of the People Jars full of headless Nina clones...
Deadly Upgrade: Linking with a D-Construct is pretty much inevitably fatal. Even the ultimately rejected link with Odjn is slowly killing Elyon. The scene revealing this even has half of Elyon's face show Glowing Eyelights of Undeath.
Expy: According to an interview, he is a different take on Fou-lu from the previous installment (specifically, a Fou-lu expy who was not a God Emperor).
Ho Yay: With Cupid, whom he is implied to have a relationship with.
And partially the victim of one of two incidents of Bowdlerization known to have happened with Dragon Quarter, but (compared to the mass censorship in IV) was merely changed to a het relationship.
My Greatest Failure: Elyon is ultimately rejected by Odjn when he refuses to open the sky—fearing it was not his decision and fearing he would be placing all of Sheldar at risk.
She's a Man in Japan: Gender-bended for the US release because of hir implied relationship with Elyon.
Vexacion
Knight Templar: He trains Bosch literally from toddlerhood in gladiatoral combat—because he feels it's a necessity to protect Sheldar from rogue Genics, including and especially the D-Constructs. It's also very strongly implied that he killed everyone who bonded with a D-construct from the time Elyon bonded (and was rejected) by Odjn up to when Ryu became a Chosen.
Last Disc Skill: one of Ryu's best level 3 skills, Terabreak, is stolen from him.
Asskicking Equals Authority: An interesting subversion in Deamoned's case. It's implied he was the original leader of the Regents—until an Odjn-possessed Elyon kicked his ass and took his eye.
Really 700 Years Old: And now we really want to know what sort of life-extension technology the Regents have...
The Dragon: To Elyon, of all people. It's strongly implied that Trinity is in fact a faux La Résistance designed to allow Sheldar's inhabitants to rebel without threatening the Regents (and Elyon's Xanatos Gambit).
