Ultraman Groob

Ultraman Groob (ウルトラマングルーブ) is an Ultra Warrior born from the fusion form of Ultraman Rosso, Ultraman Blu, and Ultrawoman Grigio. He first appears in Ultraman R/B The Movie: Select! The Crystal of Bond.

Etymology
Similar to how the word "Ruebe" (ルーブ ), the pronunciation of "R/B" is derived from the initials of Rosso and Blu, Groob's (グルーブ) follows the same naming convention with Grigio added.

Ultraman R/B The Movie: Select! The Crystal of Bond
When Ultraman Tregear appeared backing up Snake Darkness, everyone was easily overpowered. Refusing to give up, the Minato siblings - Katsumi, Isami, and Asahi fused into Groob, activating the Makoto Crystal’s power through their family ties. Groob was joined by Riku, who transformed into Ultraman Geed Ultimate Final once more. Groob and Geed then alternated between fighting Tregear and Snake Darkness, and were eventually fighting on par with them. Finally, Groob destroyed Snake Darkness via the Groobing Ray and freed Yukio Toi from the dark influence.

Statistics

 * Height: 53 m
 * Weight: 47,000 t
 * Maximum Flight Speed: Mach 10
 * Maximum Running Speed: Mach 6
 * Underwater Traveling Speed: Mach 5
 * Underground Traveling Speed: Mach 4
 * Maximum Jumping Power: 1500 m
 * Brute Strength: 135,000 t
 * Grip Strength: 99,000 t
 * Time Limit: 3 minutes

Body Features

 * Groob Signal (グルーブシグナル): Groob possesses a circular-shaped Color Timer.
 * Ultra Armor: The standard Ultra Armor.
 * Protectors (プロテクター): Like his components, Groob sports protectors covering his chest area.
 * Crystals: Groob possesses small crystals on his chest, arms, and legs.
 * Breast Shiner (ブレストシャイナー): Specifically referring to the crystals on his chest, they are used to fire the Delta Breastranser.
 * Golden Ring: A golden Ring on Groob's back, it is where the R/B Kourin is stored.

Transformation
1= "Overlap! The Three Souls!"

- Transformation announcement w/ Makoto Crystal.

2= "Enshrined by Reality! The Immortal Truth!!"

- Groob's transformation catchphrase

The Minato Siblings join their hands, which summons the Makoto Crystal. Katsumi then presses the side button, opening up the crystal while Isami and Asahi stand by his side, revealing its Kanji and inserts it to his Gyro. He then thrusts the Gyro forward and pulls the handles one last time and places the Gyro on his chest, before the siblings transform into Groob.

Abilities

 * Groob Reflect (グルーブリフレクト) (Unused): Groob summons a barrier of light.
 * Hand Blocking: Groob can simply block an energy beam with his bare hands.

Weapons

 * R/B Kourin (ルーブコウリン): Groob retains the use of Ruebe's personal weapon.
 * Groob Vortex Buster (グルーブボルテックバスター): An upgraded version of Ruebe's Ruebe Vortex Buster, using the Makoto Crystal in place of the Kiwami Crystal. Groob fires a destructive beam from the R/B Kourin.
 * Groob Kourin Shot (グルーブコウリンショット): An upgraded version of Ruebe's Ruebe Kourin Shot, using the Makoto Crystal in place of the Kiwami Crystal. Groob fires three cutting halos from the R/B Kourin.

Special

 * Groobing Ray (グルービング光線): Groob's Ultra Beam. He fires it from the '+' position, but his left hand is in a fist. The beam has a miraculous power, saving the life of victims trapped inside a Kaiju.
 * Delta Breastranser (デルタブレストランサ): Groob's secondary energy beam, fired from the crystals on his chest.

Physical

 * Groob Kick (グルーブキック): A powerful kick attack with destructive force.
 * Groobing Impact (グルービングインパクト): Groob can imbue energy into his foot, although his energy is rainbow-colored compared to Ruebe's gold. Three times more powerful than Groob Kick.
 * Groob Punch (グルーブパンチ): A punching attack with strong impact.
 * Groobing Smash (グルービングスマッシュ): Similar to the Groob Punch, though with rainbow-colored energy imbued into his fist. Three times more powerful than Groob Punch.
 * Groob Tackle (グルーブタックル): An attack with Groob’s entire body.
 * Groob Throw (グルーブスロウ): Thanks to his grip strength, Groob is strong enough to lift up Snake Darkness' tail, and throws it afterward.
 * Groob Chop (グルーブチョップ): A chopping attack.

Trivia

 * All publicly viewable footage of Groob in R/B The Movie so far portrays the character fully in CGI.
 * While the Makoto Crystal toy's box spells his signature Ultra Beam as Groobium Ray (グルービウム光線), the sofubi card and magazines instead state that it is called Groobing Ray (グルービング光線).
 * The way Rosso, Blu and Grigio hold hands in a circle during Groob's transformation is likely a reference to Triple Fighter.
 * Groob's fusion parallels said hero, as both are fusions of three individual heroes who are siblings, two brothers and a sister.