Characters / Compati Hero Series


Fighter Roar

A member of the "Battle Force", Fighter Roar is a character created to serve as a fourth playable hero alongside Ultraman, Kamen Rider and Gundam for The Great Battle series. Roar made his debut as a supporting character in SD The Great Battle, then became playable in The Great Battle II. As the hero representative of Banpresto, the borders surrounding his eyes resembles the logo of the developer.

A cyborg created by Dark Brain, Roar rebels against his arch-nemesis in order to prevent other beings from suffering the same fate he endured. Originally, he did not bear the monniker "Fighter" on his name and was shrouded with a hood that covered his entire body. Beginning from The Great Battle II and subsequent appearances, he dons a red armor with visible blue hair. Although the faceplate that covers his mouth were supposedly cybernetic implants, The Great Battle IV establishes it's a mouth cover. Despite having different character designs, such as a referee uniform in Battle Dodgeball or when he becomes an evil warrior in Battle Commander, those are considered a set of different equipment worn by the same character. In Battle Racers, Roar's secondary color scheme consists of green hair and blue armor.

His personality differs between games: in the original Great Battle, IV and V, Roar speaks politely and frequently uses Japanese Honorifics; for II and III, he has a sharper tongue and is more straight-forward.

Roar reappears in Super Robot Wars Original Generation, pursuing Dark Brain in his Humongous Mecha "Compatible Kaiser", but unforeseen circumstances has destroyed his physical body, rendering him as a spirit. Known now as "Warrior Roar", he resides in the "Roar Armor", acting as a Spirit Advisor to his successor Kouta Azuma, who has inherited his title of "Fighter Roar".

To avoid redundancy with Kouta in Original Generation, tropes exclusive to Roar in The Great Battle series are:
  • Ace Custom: Compatible Kaiser
  • Ascended Extra: Back in The Great Battle, Roar was just an NPC who appeared to revive the fallen Knight Gundam. He becomes playable in The Great Battle II.
  • Cyborg
  • Cool Board: "Battle Racer", his flying surfboard from Great Battle III.
  • Dimensional Traveler
  • The Hero
  • Kill It with Fire: "Fire Dragon"
  • Squishy Wizard
    • In The Great Battle IV, he has the weakest attack compared to other characters. However, his handgun shoots ricochet shots, so it can be use to get rid of enemies on different platforms from a safe distance. Roar's Double Jump ability also lets him reach very high platforms.
    • In The Great Battle Gaiden, he's the only character that can't directly attack enemies. Still, Roar can use the Smart Bomb: while it takes a few seconds to detonate, it can damage all enemies.
  • You Gotta Have Blue Hair

Emi/Dark Emi

Fighter Roar's younger sister, Emi made her debut earlier in SD Hero Sōkessen as an engineer of a Gachapon Machine. It wasn't until Battle Commander was it established the two of them were siblings. Like Roar, Emi's character design differs depending on the game: in SD Hero Sōkessen, she wears a helmet that covers her right eye, while in The Great Battle III, her visible hair is what covers her right eye. Both designs would be used in Battle Racers.

Although Emi usually appears as an ally who aids the heroes The Great Battle series, Battle Racers or Battle Pinball, in SD Hero Sōkessen she is taken captive and transforms into the Final Boss after Dark Brain is defeated before regaining her senses. Similarly, in Battle Dodge Ball II she is a member of the final rival team called the "God Factory", and in Battle Crusher, she becomes "Dark Emi" after being possessed by Dark Brain and challenges the player as the final opponent in the championship tournament.

While her powers are not as great as Roar's, she has several healing skills in various games, can wield the "Hindbreaker" sword passed down by the "shadow people" in Battle Commander and has the ability to reduce an opponent's special move points in Battle Dodge Ball II, among other abilities.

Although Emi does not appear in Original Generation, the "Emi Armor" is mentioned. Like the Roar Armor, it houses Emi's abilities and powers, though there is no evidence to suggest her spirit exists. Instead, the armor is worn by Kouta's sister, Shoko Azuma, who is forced to use it after she is taken captive by the Shura in Original Generation Gaiden. Upon wearing the Emi Armor, Shouko takes on the appearance of Dark Emi from Battle Dodgeball, who becomes hostile towards Kouta, until she breaks free from the effects of mind control.


A short middle-aged superhero from SD Battle Ōzumō as a representative of Banpresto, Banprekid has a peculiar hairstyle and wears a Superman-like outfit with a rocket booster on his back. In subsequent games, he appears as a supporting character who assists the heroes as a referee or a shopkeeper. In Battle Commander, he appears with a completely different design as a robot equipped with a bow and arrows and a musket gun seen in advertisements.

Doctor Kisaburo

An engineer who created the Compatible Kaiser in The Great Battle IV, Doctor Kisaburo aligned with Roar to combat against Dark Brain. In The Great Battle III, an elderly magician with the same name appears, although his relation to the doctor in IV is never mentioned.

In Original Generation, a character resembling Doctor Kisaburo appears as Professor Kisaburo Azuma, grandfather to Kouta and Shouko.

Great Kaminarimon

A horned red-skinned thunder-god who wears a yellow t-shirt with the Banpresto logo, the Great Kaminarimon carries a pair of drums on his back, with a resemblance akin to the Terminator. He has a technique called "Tamine Thunder" (a play on "terminator" and "thunder"), where he radiates electricity from his body. He appears in The Great Battle II and III as a non-playable ally who helps Roar and Battle Force by combining his attacks with theirs. Although he has the same appearance in II as he did in his debut for SD Battle Ōzumō, for III he wears a pair of sunglasses and is shirtless aside from a pair of suspenders sustaining his trousers.

Despite his a heroic role in The Great Battle series, the Great Kaminarimon reappears as a teammate of the villainous Neo Dark Brain in Battle Dodgeball, where he has light blue hair, lighter skin, and protective gear on his chest and shoulders. Like Banprekid, he appears in an ad in Battle Commander, carrying a pair of power turbines on his back with two horns instead of one growing out of his head.

In Original Generation, a Humongous Mecha modeled after the Great Kaminarion appears as the "G-Thundergate", used by Dark Emi ("Thundergate" being the English translation of "Kaminarimon").
  • The Cameo: In The Inspector Animated Adaptation of Original Generation 2, an Einst version of the Great Kaminarimon appears in the final episode called the "Noi GK".
  • Canon Immigrant: For the Endless Frontier EXCEED, the Great Kaminarimon is the other mascot of the amusement park where Banprekid appears.
  • Shock and Awe

Gilliam Yeager (Voiced by Hideyuki Tanaka)
"This world is a test tube...and the experiment..."

Major Gilliam Yeager is 27-years old with long purple hair typically covering one side of his face. A former member of the Aggressors, an elite Personal Trooper unit, he has a knack for appearing where trouble is brewing.

This may not be accidental.

He's actually a Dimensional Traveler. In his debut game Hero Senki: Project Olympus (Senki meaning "War Chronicles"), he was originally one of the heroes with a mysterious origin and a case of Amnesiac Dissonance, who piloted the Powered Armor Gespenst. When he gets knocked on the head during a sort of Heroic Sacrifice, curing him of the amnesia, he remembers that he's actually the leader of the bad guys, "Apollon". The remaining heroes defeat him and his XN Geist, a machine that could warp dimensions, only to have him reveal he was actually a Well-Intentioned Extremist: using his powers of precognition, he saw a dark future for their world called "Elpis", and also realised that their world was artificial. He had planned to use the XN Geist to save Elpis, but ended up just making trouble. In his last moments before everything comes crashing down he sends the heroes to safety and teleports away randomly, hoping to someday be able to return.

From then on, he became a permanent hero, landing in the Classic Timeline during the events of Super Robot Wars F/F Final, while calling himself "Gilliam Yeager", before coming to the world of the Shadow-Mirror. By this point, his dimensional jumping "System XN" (XN Geist's core) was damaged enough he had to ally himself with the local Tesla Leicht Institute to repair it, which also happened to give the Shadow-Mirror the ability to dimension jump. While staying in this dimension, Gilliam takes on another pseudonym "Helios Olympus" (a combination of his base of operations called "Helios Base" when he was Apollon, and "Project Olympus") and during a test where he was to take System XN and run it, he ended up jumping to the Original Generation universe, leaving System XN behind. Permanently relegated to this new dimension, Gilliam quickly integrates himself into The Federation and serves in the Earth Federation Army's intelligence division. Knowing the Shadow-Mirror will eventually arrive, he resumes his name Gilliam and awaits patiently for his former comrades to make their entrance.

Unknown to Gilliam, parts of System XN would be later integrated into Vindel Mauser's machine Zweizergain. Once the Shadow-Mirror are defeated in Original Generation 2, Gilliam takes the recovered System XN and destroys it; unfortunately, he's cut off his only hope of ever returning to his original world.

Gilliam prefers to pilot the Gespenst line of Personal Troopers, and tends to emphasize speed over power. Due to the fact he piloted the original Gespenst and always seems to be related to the machine appearing in multiple SRWs, some theorize Gilliam is in fact the one behind the spread of Gespensts in the Banpresto multiverse. He also tends to end up associated with an intelligence division of the army: when he's not fighting, he helps the heroes by procurring information and supplies.

Tropes associated with Gilliam:
  • Ace Pilot: Put him in any machine and he will wreck the enemy with little to no trouble, given his past as a dimension jumper and the wars he was in
  • Amnesiac Dissonance
  • The Atoner: In a way. Gilliam destroyed perhaps his one and only chance to return home, but he relegates staying in the Original Generation universe to make up for past sins.
  • BFG: Gespenst Type-RV's Mega Buster Cannon
  • Chest Blaster: Gespenst Type-RV's Vampire Laser
  • Cool Mask: Upon activating System XN.
  • Continuity Nod: In Original Generation 2 and The Inspector, just as Gilliam is about to activate System XN from the Zweizergain, he mentions a little girl who once saved him. This is the same girl whom he rescued back in Hero Senki and his raison d'etre for atonement.
  • Dimensional Traveler
  • Eldritch Abomination: XN Geist
  • Leitmotif: "Hero Senki" and "XN Geist"
  • I Have Many Names: We're not even sure if Apollon, Helios or Gilliam is his true name, since they're all pseudonyms of one kind. Justified, as the constant switching of names is the way to keep his identity secret.
  • Mid-Season Upgrade: Gespenst Type-RV, only in Original Generation. Wild Mass Guessing ensues as to whether or not the Type-RV is the same Gespenst Gilliam once turned it into the XN Geist.
  • My Significance Sense Is Tingling: It's unknown where he got his precognitive abilities, but Gilliam's so deathly afraid of this power he swears it off from ever using it following Hero Senki.
  • Mythology Gag: In a save-quit conversation in Original Generation Gaiden between Gilliam and Dark Brain, the latter will mention dodgeball. In the same game, Gilliam remarks he's seen Fighter Roar somewhere before. All three characters previously appeared in Battle Dodgeball, a Spin-Off of The Great Battle series.
  • No Fourth Wall: Not only a gag in his intermission skits, but Gilliam actually seems to be aware there's something wrong with all the crossovers in the worlds he visits, and there's someone out there pulling this all together — that "someone" heavily suggested to be Banpresto itself.
  • Not So Different: Euzeth Gozzo says this about Gilliam :"Gilliam ... The man burdened with a fate similar to mine."
  • Peek-a-Bangs
  • You Can't Go Home Again
  • Willfully Weak: Possibly. Levi Tolar mentions that he appears to be hiding his power.


Dark Brain

One of the first Original Generation created by Banpresto, Dark Brain made its debut as the Big Bad of SD Hero Sōkessen. In this game, it is depicted as a brain implanted into a machine, a form it would use again in Great Battle Cyber. In the first The Great Battle, Dark Brain disguises itself in humanoid, cybernetic body covered in a mantle with a one-eyed device. In The Great Battle II, it becomes "Hyper Dark Brain", an upgraded form that resembles his appearance in the earlier Famicom games, but without any armor, longer limbs and speaks in an exaggerated Kansai Regional Accent. In The Great Battle III, the original form of Dark Brain is shown, where it dresses itself up like a clown named the "Devil King".

In Battle Dodgeball, its form from the original Great Battle is called "Neo Dark Brain" and in Battle Dodgeball II, Dark Brain assumes a form similar to Hyper Dark Brain whenever it is used as an outer court player. In Tekkyū Fight!, Dark Brain merges with the Iron Devil King Dark Iron to become one.

Dark Brain reappears in Original Generation Gaiden as the Big Bad in a redesigned version of its form from The Great Battle. Sometime unspecified time after The Great Battle IV, a defeated Dark Brain leaves the Battle Force universe with Roar in pursuit. Wishing to rematerialize in another dimension, Dark Brain seeks the "Twelve Keys" that will allow him entrance into another world, thus sends out an underling it created called Duminuss to do the task. Dark Brain somehow also got a hold of the Emi Armor and the G-Thundergate, granting both items to Duminuss for its use in order to manipulate Roar, now part of the Roar Armor belonging to Kouta. Despite the efforts of the Earth Federation Army, they could not prevent Duminuss from opening an interdimensional gate, allowing Dark Brain to enter. It takes everything the Earth Federation Army throws at Dark Brain to defeat it, but not totally destroy it.

Tropes associated with Dark Brain:
  • As Long as There Is Evil: Dark Brain states it is the sum of all negative emotions and energies in the multiverse. Even if its body is destroyed, its essence will linger on so long as there's an ounce of negativity present anywhere.
  • Big Bad: Of SD Hero Sōkessen, The Great Battle series and Original Generation Gaiden
  • Brain in a Jar
  • Did You Just Punch Out Cthulhu?
  • Eldritch Abomination: It looks like a Humongous Mecha, but beneath that armor lies a real Body Horror.
  • Evil Overlord: In SD Hero Sōkessen, Dark Brain is an evil gashapon who steals gashapon machines and uses it to create an army of fellow evil gashapon. It remains as this during The Great Battle era.
  • Go-Karting with Bowser: Much like the Trope Namer, Dark Brain was one of Roar's teammates in Battle Dodgeball.
  • The Heartless
  • Hijacked by Ganon:
    • Twisted across the plot of The Great Battle II and The Great Battle III. In the former, it's manipulated by new villain "Zan-el". When Zan-el ascends to become the Big Bad of III', it turns it's actually just The Dragon to the Dark Brain.
    • The Great Battle IV features a whole new roster of villains, serving new Big Bad "Emperor Overlord". When Overlord is defeated, it transforms into a living brain; dialogue in Original Generation Gaiden confirms that it is indeed Dark Brain.
  • Hive Mind: Implied in a dialogue in Original Generation Gaiden that Dark Brain is the sum of multiple personalities having become one. This may explain its sporadic, physical changes in the Compati Hero Series from game to game.
  • Leitmotif: "Wisdom of Darkness" and "The Great Battle"
  • Made of Evil
  • Mad Scientist: It's implied Duminuss, of which Dark Brain correctly calls it "Dynamis 3", is but one of many other "Duminuss" copies sent out to multiple dimensions
  • Multiversal Conqueror: Subversion. Dark Brain isn't into conquering universes and would render dimensions into a cinder, if only just to find one of the Twelve Keys. Which turns out to be incomplete and the completed keys are the Gun Edens.
  • Nigh-Invulnerability
  • Omnicidal Maniac
  • One-Winged Angel
  • Voice of the Legion
  • You Have Failed Me, You Have Outlived Your Usefulness: Although Duminuss may have successfully brought Dark Brain into the setting, it destroys Duminuss for having failed to not only kill Roar but allow the Emi Armor and G-Thundergate to fall back into Roar and his allies.


The final boss in The Great Battle II. A being who has conquered many planets, he sets his sight on the SD Nation and manages to divide the nation by destroying the Environmental Management Device while the heroes were fighting Dark Brain, allowing him to conquer the SD Nation without much of an effort. Has an upgraded form with improved combat efficiency. In Great Battle III, he appears as a magician who resurrects Dark Brain after he is defeated and has a much smaller size than in the previous game.

Black X

A general of Overlord Empire in The Great Battle IV, he piloted three Battle Armors against Compati Kaiser. Later revealed to be Roar's friend, Cross, brainwashed into his enemy.