Humans
Kenji Akamoto
- Disappeared Dad: Lost his father in a car crash.
- Gratuitous Japanese: In one scene, he calls his mother "haha", the Japanese word for "Mother".
- She Is Not My Girlfriend: His family teases him about his relationship with Fluttershy a lot, and he responds with this.
Aki Akamoto
- Good Parents: She loves her kids dearly.
- Red Oni, Blue Oni: Probably, seeing as her sister is Akane frickin' Yashiro.
Kimiko Akamoto
- Cool Big Sis: She's the oldest of the Akamoto children.
- Flat "What": She is generally confused when her brother asks if he can borrow her old clothes.
- Nerds Are Sexy: She's in her early twenties and yet her room is a treasure trove of comics.
Asuka Akamoto
- Jerkass: Her heckling towards Fluttershy counts as this.
- Strong Family Resemblance: Asuka looks almost like a genderflipped Kenji.
Haruka Akamoto
- Cute, but Cacophonic: She is as cute as a button... but she can sure scream.
Akane Yashiro
- Sibling Yin-Yang: Compared to her sister Aki (a stay-at-home widowed mom), Akane is a member of G-Force.
Equestrians
Fluttershy
- Animal Motifs: Her butterfly cutie mark transforms into a birth mark on her shoulder.
- Cooldown Hug: Gets this from Kenji at first; gives Kenji a hug later.
- Death Glare: She still can use her Stare in human form.
- Fish out of Water: A pegasus from Equestria who got sucked into a human world and became human herself.
- Humanity Ensues: She gets transformed into a human.
- Jabba Table Manners: Fluttershy doesn't know how to eat with chopsticks so she just opts to eat like a horse.
- Naked on Arrival: She ends up naked after arriving on Kaiju Earth.
Twilight Sparkle
- Body Horror: She watches her body stretch out when she enters the portal
- Heroic BSoD: She goes through one when she fails to reopen the portal that sucked Fluttershy in.
- Mind over Matter: She finds out she can use a somewhat dampened telekinesis.
- Royals Who Actually Do Something: Seeing as this fic is set after the events of season 3...
- Sanity Slippage: Goes through one briefly when trying to reopen the portal.
- Winged Unicorn: Her Equestrian form.
Rarity
- Agony of the Feet: She has a very hard time walking in human high-heels that she decides to take them off.
- Cool Big Sis: For Sweetie Belle.
- Fashion Hurts: Rarity is not really comfortable wearing high heels in human form.
- Mind over Matter: Has dampened telekinesis in human form.
- Large Ham
Applejack
- Brutal Honesty: She takes the time to remind Rarity that her Element was Honesty... not Patience.
- Deadpan Snarker: She does this a few times.
- Humanity Ensues: Becomes a human.
Rainbow Dash
- Big "NO!":(upon finding out she doesn't have her wings anymore) "WHY!?"
- Boyish Short Hair: She has the shortest hair compared to the other humanized ponies excluding Shining Armor and Spike.
- Drama Queen: She goes through this after finding out she doesn't have her wings anymore.
- Let Us Never Speak of This Again: After she recovers from learning about the loss of her wings, she makes Pinkie promise never to tell anyone when they get home.
- Pinky Swear: Makes sure her sister Firefly stays out of her diary this way via wings.
Pinkie Pie
- Attention Deficit... Ooh, Shiny!: She didn't even bother paying attention to Kenji teaching her chopsticks work.
- Letting Her Hair Down: Whenever she's sad, her mane goes flat.
Spike
- Adorably Precocious Child: His human form is a boy just 10 years of age.
- Anime Hair: Has green, spiky hair in his human form.
- Badass Adorable: Mentions off to Twilight all the times he's been put in danger only to come out on top.
- Eat Dirt, Cheap: As a dragon he eats gems.
Shining Armor
- The Atoner: The reason he joins Twilight and her friends' quest to save Fluttershy is because he wants to make up for what he said during the Changeling Incident.
- Cool Big Bro: To Twilight.
- Happily Married: To Cadence.
- Heroic Build: His human form is very tall and muscular.
- Mr. Fanservice: Becomes this as a human.
Empress Scribe
- Almighty Mom: Considering her daughters are Luna and Celestia...
- The High Queen: Was this before her daughters took over
- Missing Mom: There is no mention of her fate.
- Mythology Gag: This is really the ponified version of Lauren Faust herself.
Firefly
- Annoying Younger Sibling: Is implied to have been for Rainbow Dash considering she read her sister's diary
- Canon Immigrant: From the G1 continuity.
- Era-Specific Personality: Is more relaxed and controlled compared to her sister as opposed to her G1 counterpart.
- Red Oni, Blue Oni: From what we can tell from the dialogue, Firefly is more reserved and controlled than her sister.
Sparkler
- Canon Immigrant: From the G1 continuity.
- Cool Big Sis: For her cousins Sweetie Belle and Rarity.
- Era-Specific Personality: She's actually nicer than her G1 counterpart by a longshot.
Posey
- Canon Immigrant: From the G1 continuity.
- Hollywood Genetics: She is an earth pony while her daughter is a pegasus.
- Strong Family Resemblance: Bears a very striking resemblance to Fluttershy.
Jade Singer
- Canon Immigrant: From the IDW series.
- Continuity Nod: She still has trouble with Twilight's name
Surprise
- Canon Immigrant: From the G1 series.
Kaiju
Shared Tropes:
- Attack of the 50-Foot Whatever: Aside from the smaller Delta class, this applies to the Alphas, Betas and Gammas.
- The Dreaded: They're treated less as animals needed to be put down, and more like forces of nature.
- Knight of Cerebus: Whenever they are featured in a chapter, they are treated with the utmost seriousness.
Godzilla
- Anti-Hero: Word of God confirms it.
- Asskicking Leads to Leadership: There's a reason one of his nicknames is "King of the Monsters".
- Breath Weapon: His Atomic Ray.
- Composite Character: Has his Kiryu Saga design but his origins are more in line with his Heisei counterpart.
- Dark Is Not Evil: Godzilla is charcoal gray in color... that also doesn't mean he's very nice either.
- Death Glare: Basically his default facial expression.
- The Dreaded: One would believe that considering one of his nicknames is "The Butcher of Tokyo".
- Energy Absorption: In addition to being a carnivore, Godzilla is able to absorb radiation like a sponge.
- Glowing Eyes of Doom: His eyes seem to have a glowing effect.
- Good Thing You Can Heal: He has cellular regenerative abilities. However, how long they take to fully heal depends.
- I Have Many Names: Godzilla (his default name), Gojira (his name given to him by the Odo Island natives), King of the Monsters and Butcher of Tokyo.
- Knight of Cerebus: Godzilla in the fic is treated with as much seriousness as the 1954 film. Whenever he is included in a chapter, there are little to no funny moments.
- Mon Bites Mon: Despite his Atomic Ray, Godzilla opts to use tooth-and-claw in combat.
- Tail Slap: His tail is his second most powerful weapon.
Anguirus
- Adaptational Badass: This is a return to Anguirus being credible opponent for Godzilla pre-Destroy All Monsters.
- Bad Ass Normal: Relies on his horns, spikes, claws and teeth in battle.
- Close-Range Combatant: Has no beam weapons of any kind and relies on grappling, biting, using his spikes and his Thunderball move.
- Composite Character: Has his Showa design but his abilities are more akin to the Final Wars incarnation.
- Deadly Lunge: Does this during his fight with Godzilla.
- Determinator: Well it is Anguirus we're talking about.
- Enemy Mine: Pulls one off with Godzilla after being shot at by G-Force and JSDF weapons.
King Ghidorah
- Asskicking Leads to Leadership
- Big Bad: He's responsible for uniting all the villains for his goal of revenge on Godzilla.
- Big Bad Duumvirate: Shares this with Monster X, Gigan, SpaceGodzilla, Destoroyah and Hedorah.
- Breath Weapon: His Gravity Beams.
- Composite Character: Has his Grand King Ghidorah design and personality although he's terrestrial born much like his GMK, Heisei and IDW ongoing incarnations.
- The Dreaded: Why else would his other two nicknames be "King of Terror" and "Destroyer"?
- Evil Is Bigger: He towers over Godzilla.
- Hero Killer: Word of God mentions that Ghidorah killed off Gigamoth, Mothra and Battra's mother.
- I Have Many Names: His nicknames are Ghidrah, King of Terror and the Destroyer.
- It's Personal: Has a very strong vendetta towards Godzilla.
- Multiple-Tailed Beast: Has twin tails.
- Names to Run Away From: Why else would you run from something who happens to have the title of "King of Terror"?
- Omnicidal Maniac: Is responsible for the extinction of the dinosaurs and the destruction of Nilal Kunai, Mu, Lemuria and Seatopia.
- Our Dragons Are Different: In addition to being a golden dragon with three heads, no arms and two tails who shoots lightning bolt-like blasts of his own willpower, he is an unwanted byproduct of the Earth's creation who wants nothing more but the destruction of anything that stands in his way.
- Red Eyes, Take Warning: He has three pairs of these.
- Shock and Awe: In addition to his Gravity Beams, Ghidorah can also shoot lightning from his wings.
Destoroyah
- Achilles' Heel: Is weak against extreme cold.
- Big Bad Duumvirate: With King Ghidorah, SpaceGodzilla, Hedorah, Gigan and Monster X.
- Berserk Button: Does not really like the sight of Godzilla or anything resembling Godzilla.
- Beware My Stinger Tail: Has a pincer on the end of his tail
- Breath Weapon: His Micro-Oxygen Beam.
- Dark Is Evil: His main color scheme consists of purple and crimson.
- Glowing Eyes of Doom: Has soulless glowing yellow eyes.
SpaceGodzilla
- Big Bad Duumvirate: With King Ghidorah, Hedorah, Monster X, Destoroyah and Gigan.