In-Verse Heroes: Operation Extreme

In-Verse Heroes: Operation Extreme is the other main 5th anniversary project the other being the well received In-Verse All-Stars Versus, and the first In-Vers Heroes developed game in two years since 2015 video game In-Verse Heroes All-Stars.

The roster will pass the 50+ But not the 75+ bar.

Game is Multiplatform and rated T for Teen by the ESRB, PEGI 12, CERO B (12 years to above), ACB PG, USK 12 and BBFC 12.

Gameplay
The game combines the best of the four earlier entries.
 * Two ways to play: Normal (Plays like conventional 2D/3D fighting games) and Simple (Plays like Super Smash Bros. and Playstation All-Stars Battle Royale games).
 * The Super Bar that was prominent until the fourth game returns, renamed "Extreme Attack".
 * The Scenarios can be broken up.
 * The game will be 2.5D.
 * The game will have a story.

Story
The story will count with twenty episodes, roughly seven hours to pass story in normal means, and nine hours with the secrets.

The game deals with an ancient artifact named "Volt Crux", whose power is limitless, however, the bad guys as usual are trying to get the artifact for their own means. The heroes must help Lumina and Mercury to avoid a bigger disaster, but is too late, as "Volt Crux" gained sentience and now counts a death sentence to the universe of In-Verse.

In-Verse Heroes: Operation Extreme/Story for more info about the story, in progress.

Characters
Classified per series. 75 proposed characters. Characters with "/" are alternate costumes, but they retain the same voice, except for the cases with "*".

In-Verse All-Stars Original Generation

 * 1) Lumina (In-Verse All-Stars: Starry Sky Story)
 * 2) Zen (In-Verse All-Stars Legends)
 * 3) Circe Midgardia (In-Verse All-Stars Legends)
 * 4) Lucas Slate (In-Verse All-Stars Versus)
 * 5) Marie Albarn (In-Verse All-Stars Versus)
 * 6) Mercury (In-Verse All-Stars Versus)

The Adventures of Vanessa

 * 1) Vanessa Luxaloss/Wind Princess/Advent (The Adventures of Vanessa/The Adventures of Vanessa 3: Darkness and Light)
 * 2) Emily Fontaine/Dark Kaiser The Adventures of Vanessa/The Adventures of Vanessa 5: The Mightiest Iron Fist King)
 * 3) Dr. Einsteintin The Adventures of Vanessa)
 * 4) Desselle/Gill Aldina (The Adventures of Vanessa 2: The Newcomers/The Adventures of Vanessa 4: The Travelers of Destiny)
 * 5) Vitenka Itzala (The Adventures of Vanessa: Advent)
 * 6) Kali Chrome (The Legend of Vanessa)
 * 7) Astral (The Legend of Vanessa)
 * 8) Kanon (The Legend of Vanessa: Wind of the Night)

Virtua System Reinforcement Fighter X

 * 1) Valeria Lane/Cyborg Valeria (VSRFX)
 * 2) Claude Lindbergh (VSRFX)
 * 3) Nagi Hisame (VSRFX)
 * 4) Elisa Delgado (VSRFX)
 * 5) Haizea Velano (VSRFX)
 * 6) Charlie Vernon (VSRFX)
 * 7) Marcel Adler/Ultimate Marcel (VSRFX/VSRFX Origins 2)
 * 8) Ran Howard (Fighter's Road - VSRFX2)

Dream Revolution Saga

 * 1) Alexa Maxwell/Udiya (Dream Revolution: Challenge to the Ultimate Fight)
 * 2) Dynamo/Orpheus (Dream Revolution: Challenge to the Ultimate Fight)
 * 3) Yuri Maxwell (Dream Revolution: Challenge to the Ultimate Fight)
 * 4) Nathaniel Blade (Dream Revolution 2: The Counter-Attack)
 * 5) Alison Evans (Dream Revolution 2: The Counter-Attack)
 * 6) Elaine LeBlanc (Dream Revolution Final: New Game)
 * 7) Ignis Vatra (Dream Revolution: Last Fire)

Re: Vengeance

 * 1) Keith Laurent (Re: Vengeance - Silent Storm)
 * 2) Claire Edwards (Re: Vengeance - Silent Storm)
 * 3) Aiden Spencer (Re: Vengeance - Silent Storm)
 * 4) Celina Laurent (Re: Vengeance - Knight of Light)
 * 5) Lancelot A. Spencer (Re: Vengeance - Mark of the Bloody Soul)
 * 6) Drake von Stroheim (Re: Vengeance - Mark of the Bloody Soul)

Devil's Eye

 * 1) Milo Alexanderson (Devil's Eye)
 * 2) Death Slayer (Devil's Eye)
 * 3) Thomas X. Daniels (Devil's Eye)
 * 4) Oliver R. Valentine (Devil's Eye)
 * 5) Hilda Stolz (Devil's Eye)

The FEAST Saga

 * 1) Sienna Travers/Nemesis Install (Feast of the Black Strings)
 * 2) Blake Snider (Feast of the Black Strings)
 * 3) Eliza Sampson (Feast of the Black Strings)
 * 4) Cadenza (The FEAST Saga: Fight it Out!)
 * 5) Rhyme/Allegro* (The FEAST Saga: Fight it Out! -2nd Sign-)

Battle of Zero

 * 1) Sophia von Ritter/Nega Sophia (Zero Chronicles)
 * 2) Solomon von Ritter (Zero Chronicles)
 * 3) Gabriel Arsenault/Fallen Gabriel (Zero Unleashed)
 * 4) Zero (Zero Unleashed)

New Formula Racing

 * 1) Jet Dark/Kent Richards (Neo Formula Racing: Dynamite Blaze)
 * 2) Darkness/Robert Richards (Neo Formula Racing Xtra)
 * 3) Sky Archer (Neo Formula Racing: The New Challengers)
 * 4) Shadow/Mike Phoenix (Neo Formula Racing: The Rising Phoenix)

Dark Masters of the Night

 * 1) Victoria Arcos (Re: Vengeance ~ Dark Masters of the Night)
 * 2) Solaria (Dark Masters of the Night II: The Ringing Bell/Dark Masters of the Night III: Of the End)
 * 3) Echidna (Dark Masters of the Night III: Of the End)

Arcana Warriors

 * 1) Joker (Arcana Warriors)
 * 2) Genesis (Arcana Warriors)
 * 3) Mondo Kitsch/Void (Arcana Warriors)

Dreamers of the Road

 * 1) Karen Laine (Dreamers of the Road)
 * 2) Francis Armstrong (Dreamers of the Road II)

Neo Freedom X

 * 1) Sibylla Meira (Neo Freedom X)
 * 2) Balder Bryant (Neo Freedom X Part 2)

World Calamity Overdrive

 * 1) Male Fran/Female Fran*
 * 2) Ike Taylor-Schneider

Others

 * 1) Female Sage/Male Sage (Musical Warriors: The Golden Score)*
 * 2) Alba/Achilles Silvernale (Aura's Blade)*
 * 3) Rosalina von Neumann (Dynamite Dancer)
 * 4) Zander (Trinity Ex Machina)
 * 5) Aria Stadtfeld (House of Happiness)
 * 6) Tania/Diana (Ridiculous Adventures in Nowhere Land)
 * 7) Cornelia Joester (After Wish)
 * 8) Kent Miller (Burning! Dream Academy)
 * 9) Odin Lowell Jr. (Dynamite Bros' Circus: The Legend of Ell)
 * 10) Lucius Meyer/Donovan Blake (Shades of Destiny)*

Stages
The game will count with the largest stage selection: 55 stages.
 * 1) Aslada New City from The Adventures of Vanessa
 * 2) Raven Crest Base from VSRFX
 * 3) Crystal Time from Dream Revolution Saga
 * 4) Stroheim Consortium from Re: Vengeance
 * 5) Bonatti Pizza Shop from Devil's Eye
 * 6) Concert Hall from The FEAST Saga
 * 7) Ritter House from Battle of Zero
 * 8) Ventura Town from Neo Formula Racing
 * 9) Victory Flying Castle from Dark Masters of the Night
 * 10) Lost Paradise from Arcana Warriors
 * 11) Moonlight Place from Dreamers of the Road
 * 12) Electronica Illusion from Neo Freedom X
 * 13) Calamity World from World Calamity Overdrive
 * 14) Melody Manor from Musical Warriors
 * 15) Forest of Mysteries from Aura's Blade
 * 16) Jackie's House from Dynamite Dancer
 * 17) Happy Place from House of Happiness
 * 18) Amusement Park of Craziness from Ridiculous Adventures in Nowhere Land
 * 19) After Wish Vessel from After Wish
 * 20) Dream Academy from Burning! Dream Academy
 * 21) Dynamite Circus from Dynamite Brothers Circus
 * 22) White Golden Star from Shades of Destiny
 * 23) The Stepanek Vet Center from The Slashing Reaper
 * 24) Live House of Clair de Lune from Project Clair de Lune
 * 25) Guardians of United Nations - Farheim from The Adventures of Vanessa
 * 26) Streets of Fighting from VSRFX
 * 27) Maxwell Orphanage from Dream Revolution Saga
 * 28) Martin Empire - Outside from Re: Vengeance
 * 29) Liberty Lair from Devil's Eye
 * 30) Final Bout from The FEAST Saga
 * 31) Euphoria from Battle of Zero
 * 32) Racing Fire Road from Neo Formula Racing
 * 33) Big Toy House from Dark Masters of the Night
 * 34) The Starlight from Arcana Warriors
 * 35) Francis' Office from Dreamers of the Road
 * 36) Calamity End from World Calamity Overdrive
 * 37) Destroyed Academy from Neo Freedom X
 * 38) Paradiso from Trinity Ex Machina
 * 39) Underworld's Palace from Midnight Blue
 * 40) Glory Mothership from The Adventures of Vanessa
 * 41) Phantom Phoenix from VSRFX
 * 42) Ouroboros Base from Dream Revolution Saga
 * 43) TV Station from Code Cosmos
 * 44) Legend (Original)
 * 45) Antares  (Original)
 * 46) Blackout  (Original)
 * 47) Grand Stadium  (Original)
 * 48) Grand Stadium - Great Battle ver.  (Original)
 * 49) Crystal Ball - Snowy Peak  (Original)
 * 50) Crystal Ball - Sunny Line  (Original)
 * 51) Nameless Base  (Original)
 * 52) End of the Worlds  (Original)
 * 53) Battling Stormy Robots  (Original)
 * 54) Disco Dance  (Original)
 * 55) Eternal Heaven  (Original)

Fictitious Voice List
Few characters get new voices, while the crossover ones, recylced their voices from fighting games, such as Dimension Bellum and Cross Code series, etc.

Gallery
Credits to Rinmaru and its artists!

Trivia

 * This is the second largest crossover roster of In-Verse's history, the first being the 10th anniversary game Legends.
 * This is the first In-Verse Heroes game with a proper story, despite being the average crossover type, it will have no talked dialogue except for some scenes like The Subspace Emissary from Super Smash Bros. Brawl, instead, and the rest is text-based.
 * Some of the unorthodox selections, such as Sage, Ike, Echidna, Yuri and Hilda, and clones such as Kali and Ignis, are secret characters.
 * There's a hint that Lumina and Mercury are secretely engaged, according to future characters such as Devil's Eye party, Sibylla, Balder, Battle of Zero reps, the Neo Formula quartet, etc.
 * And that's apparently the reason behind Lumina wearing an eyepatch in this game and in Versus.
 * However, due to their age difference; Mercury is more than hundreds of years old and Lumina is only in her mid twenties, but her real age is unknown. This causes a personal conflict between the two.