Go Group

The Go Group are high tier, weapon users whose weapons are created from each respected ornament much like Kuuga while in his Pegasus, Dragon, and Titan forms. Unlike the lesser tiers, the Go do not personally count their victims as Ra Dorudo Gu does that for them as they judge. Also, their game roles are themed on personal rules they had placed on themselves, working on a certain number of people they picked personally. The Go who completes the Gegeru, or the one who can defeat all the Go class Gurongi, earns the right to fight Daguva for control of the entire Gurongi Tribe. Their leader is Go-Gadoru-Ba, one of the three strongest Go, the Gebageru, who modified themselves to alter their forms like Kuuga and Daguva.

Go-Buuro-Gu

 * Go-Buuro-Gu (ゴ･ブウロ･グ)
 * Statistics:
 * Code name: "Unidentified Life Form #37" (未確認生命体第３７号)
 * Tattoo: Owl
 * Actor: Koichi Takao (高尾 晃市)
 * Episodes: 23-26
 * Destroyed by: Kuuga Rising Pegasus Form's Rising Blast Pegasus

He can fly up to 300km/h, and armed with a bow gun that fires owl-feather darts, Būro assumes the form of a young man wearing sunglasses. When his turn came, he spent the five hours in Tokyo District 23 using his bow gun to snipe down people by the nines from the air, having all 126 victims die of a myocardial infection. Kuuga intercepts Būro at the Hygeia Building in Shinjuku, attempting to fight him in Pegasus Form as he temporary upgrades to Rising Pegasus Form. To evade his demise, Būro rips off his right wing when it was hit by Kuuga's attack and runs off to regenerate it. Once healed, Būro forces Kuuga out for a final battle, bringing out his Rising Pegasus Form. However, it took three hits from Kuuga to kill him.

Go-Bemiu-Gi

 * Go-Bemiu-Gi (ゴ･ベミウ･ギ)
 * Statistics:
 * Code name: "Unidentified Life Form #38" (未確認生命体第３８号)
 * Tattoo: Sea Snake
 * Actor: Seiko Ito (伊藤 聖子)
 * Episodes: 25-28
 * Destroyed by: Kuuga Rising Dragon Form's Rising Dragon Splash

She can breathe underwater up to 100 degrees Celsius (212 degrees Fahrenheit), and armed with a whip, she assumes the form of a young woman in a black cheongsam with black lips and a love for classical music. When her turn came, Bemiu uses Chopin's Revolution to plan out her killing spree, murdering her victims by going to public water areas and using her whip to pierce sixteen of those each in the pool, totaling 58 victims of frostbite-induced cardio paralysis in the four pools she visited. But when the police closed down the public swimming areas after getting her pattern, Bemiu alters her plan to attack the people at a beach until Kuuga intervenes in Dragon Form. Once assuming Rising Dragon Form, Kuuga kills her as he chucks her into the sea.

Go-Gamego-Re

 * Go-Gamego-Re (ゴ･ガメゴ･レ)
 * Statistics:
 * Code name: "Unidentified Life Form #39" (未確認生命体第３９号)
 * Tattoo: Turtle
 * Actor: Kazuyoshi Sakai (酒井 一圭)
 * Episodes: 25-30
 * Destroyed by: Kuuga Rising Mighty Form's Rising Mighty Kick

Armed with a supply of morning stars created from his rings, he assumes the form of a man in Yakuza attire with a gambling streak. Using a roulette table to select the number and color to pick out a random location straight from a tall building he occupies, Gamego tosses his weapon to kill as many people to get his quota of 54 for each location. Kuuga fights him in Rising Titan Form, but was overwhelmed and defeated as the hard-shelled Gamego takes his leave, knocking out Junichi Chono in the process. Using a game of poker and starting anew at West Shinjuku, Kuuga battles Gamego as Ichijo uses the prototype Neurogenesis Bullets to disarm the Gurongi as Kuuga uses the Try Gouram to bring their fight to a disclosed area, assuming Rising Mighty Form to kill the Gurongi.

Go-Badaa-Ba

 * Go-Bada-Ba (ゴ･バダー･バ)
 * Statistics:
 * Code name: "Unidentified Life Form #41" (未確認生命体第４１号) and "B8" (Ｂ群８号)
 * Tattoo: Grasshopper
 * Actor: Nobuyuki Ogawa (小川 信行)
 * Episodes: 21-33
 * Destroyed by: Kuuga Rising Mighty Form's Rising Mighty Kick

The first of the Go to appear when he intervenes in Kuuga's fight with Gooma before leaving the scene and then formally introducing himself when Bemiu starts to play. Assuming the form of a young man wearing a scarf (which pays homage to the Showa-era Riders) and carries a coin, Badaa rides a bike named the Bagibuson (バギブソン) as his weapon that can reach speeds of 400km mph. When his turn came, he begins to kill 99 motorcyclists within a 72 time limit. When the TryChaser 2000 is damaged, Kuuga is left at a disadvantage as Badā leaves with a promise to save him for last in his game. By the time Badaa reached 98, he decides to finish off Kuuga. However, after being barraged with bullets, Badaa is driven into a secluded location where Kuuga meets him on the BeatChaser 2000, outrunning him before he fatally knocked Badaa off his bike.

Go-Jaraji-Da

 * Go-Jaraji-Da (ゴ･ジャラジ･ダ)
 * Statistics:
 * Code name: "Unidentified Life Form #42" (未確認生命体第４２号)
 * Tattoo: Porcupine
 * Actor: Masayoshi Okawa (大川 征義)
 * Episodes: 25-35
 * Destroyed by: Kuuga Rising Titan Form's Rising Calamity Titan

Armed with needles, Jaraji assumed the form of youth in black who enjoys human suffering and snaps his fingers when able to move at fast speeds. He supported Gamego in his game before his death. When his turn came, Jaraji started to target 90 people by shooting his quills into them, having them die of encephalitis in four days. While going after Kazuya Ikuta, killing the police, Jaraji is interrupted by Kuuga, taking offense to it and leaving Kuuga wounded with a warning to stay out of his game. However, because some of his victims committed suicide, Jaraji is forced to find replacements before the 12th day ends. But when he was about to kill Kazuya to finish the game, Kuuga attacks Jaraji in a berserk rage, assuming Rising Titan Form to brutally kill Jaraji.

Go-Zazaru-Ba

 * Go-Zazaru-Ba (ゴ･ザザル･バ)
 * Statistics:
 * Code name: "Unidentified Life Form #43" (未確認生命体第４３号)
 * Tattoo: Scorpion
 * Actor: Chiaki Asakura (朝倉 ちあき)
 * Episodes: 25-39
 * Destroyed by: Kuuga Rising Pegasus Form's Rising Blast Pegasus

Armed with a poison claw, Zazaru posed as a woman with a fan who loves to paint her nails, the medium of her weapon and her game pattern. She supported Gamego and later made an enemy of Gooma after calling him weak. When her turn came, she targeted people in ten of the type of moving object like taxies and elevators that reflect the color pattern of her nails, melting them down with her strong acidic blood. This acid is trouble as it is extremely flammable and cause mass destruction if she is attacked. During her game, she gets ambushed by Gooma and the two fight until Kuuga arrives, allowing her to escape to resume her game in spite of Dorudo's warnings not to underestimate humans like Bemiu had. Kuuga along with the police force charges on Zazaru as he assumes Rising Pegasus Form with his aided Beat Gouram to shoot her down.

Go-Jaaza-Gi

 * Go-Jaaza-Gi (ゴ･ジャーザ･ギ)
 * Statistics:
 * Code name: "Unidentified Life Form #44" (未確認生命体第４４号) and "B10" (Ｂ群１０号)
 * Tattoo: Hammerhead Shark
 * Actor: Sumire Arai (あらい すみれ)
 * Episodes: 37-41
 * Destroyed by: Kuuga Rising Titan Form's Double Rising Calamity Titan

Jaaza assumes the form of a glasses-wearing woman in a dark green suit. She hates to fight but she knows she must continue for her own survival and prefers killing those too weak to fight back. She is armed with a harpoon. When her turn begins after modifying herself from her default Quick Form (俊敏体), she goes all out to kill 567 within five hours while leaving internet blogs proclaiming her actions minutes prior. After slaughtering the mostly elderly 243 passengers of Rainbow Airlines in one go while posing a passenger, she kills the pilot after having him relay a message to the police of her intent. Jumping out of the crashing plane and swimming all the way back to Tokyo, she manages to severely wound Kuuga while his guard was down. After meeting with Baruba, she heads off to kill the remaining 327 at Sunflower Cruise, most of which were children. Kuuga arrives on Gouram to stop Jaaza in Dragon Form. However, she evolves into her Herculean Form (剛力体), armed with a large sword and Kuuga switches to Rising Titan Form, taking their fight into the ocean floor as he kills her.

Go-Baberu-Da

 * Go-Baberu-Da (ゴ･バベル･ダ)
 * Statistics:
 * Code name: "Unidentified Life Form #45" (未確認生命体第４５号) and "B12" (Ｂ群１２号)
 * Tattoo: Bison
 * Actor: Kensho Sakurai (桜井 顕生)
 * Episodes: 37-42
 * Destroyed by: Kuuga Rising Mighty Form's Rising Beat Gouram Attack

Baberu assumes the form of a man in his forties with a headband and black lips. When his turn came, he targeted underground centers, using his default Grapple Form (格闘体)'s natural strength and armed with a pair of brass knuckles to block all escape routes to ensure the police don't interfere in his game to kill 682 people within four plays. On the third day, Baberu battles Kuuga, defeating his Titan Form easily in Herculean Form (剛力体), armed with a war hammer, until Ichijo uses the Muscle-Relaxing Bullet (筋肉弛緩弾) to weaken the Gurongi as Kuuga takes him to the location to finish him with his aided Rising Beat Gouram.

Go-Gadoru-Ba

 * Go-Gadoru-Ba (ゴ･ガドル･バ)
 * Statistics:
 * Code name: "Unidentified Life Form #46" (未確認生命体第４６号) and "B11" (Ｂ群１１号)
 * Tattoo: Rhinoceros Beetle
 * Actor: Masato Gunji (軍司 眞人)
 * Episodes: 25-46
 * Destroyed by: Kuuga Amazing Mighty Form's Amazing Mighty Kick

Armed with various weapons similar to Kuuga, Gadoru assumes the form of a man in militant garb. As the Go's leader, he intervenes in the fight between Zazaru and Gooma and later comes to Baruba's aid against a power-mad Gooma when Kuuga arrives to witness him putting the bat Gurongi back in his place. With Daguva going to Tokyo soon, he and the other two remaining Go undergo the same process as Gooma to ready themselves. After his two allies were killed, Gadoru is the last of the Gurongi to play. After undergoing training to ready himself, Gadoru heads to the police department to find worthy opponents to fight as part of his game. When confronted by Kuuga in his default Grapple Form (格闘体), Gadoru, reveals his new ability to the different powers of Kuuga, Quick Form (俊敏体), Shooting Form (射撃体), and Herculean Form (剛力体), before defeating Kuuga at full-power in Shocker Form (電撃体). But due to Ichijo, Gadoru's game had to be reset as the Gurongi attempts to kill Dorudo for failing his part. After Dorudo retreats, Gadoru attempts to kill Ichijo upon being wounded by the officer's Nerve-Breaking Bullets as Yuusuke arrives to battle the Gurongi as Kuuga. Once taking their fight to the woods, Kuuga assumes Amazing Mighty Form and destroys Shocker Form Gadoru.

Other Go Gurongi

 * Go-Jiino-Da (ゴ･ジイノ･ダ): A wild boar Gurongi labeled as "Unidentified Life Form #40" (未確認生命体第４０号). Destroyed by Kuuga Mighty Form's Mighty Kick. Go-Jiino-Da is voiced by Tetsu Inada (稲田 徹).