TV-Series
Description
Mic Sounders the 13th, designated XCR-13, is a G-Stone-powered Brave robot developed by NASA as part of the Mic Force project, the thirteenth unit in a line including his twelve older brothers. Transferred to Japan's Gutsy Geoid Guard (GGG) Mobile Unit under a technology exchange agreement, his deployment encountered complications when turbulence from EI-23's artificial storms sank his cargo container during oceanic transport. He escaped before GGG retrieval and autonomously sought out Mamoru Amami at a Radi-Robo competition, forging an immediate friendship.

Physically, Mic operates in two distinct modes. His default Cosmo Robo Mode presents a compact, blocky red and blue frame standing 10.2108 meters tall, weighing 38.5559 tons, with a maximum running speed of 111.12 km/h. A monitor display serves as his face, shifting expressions to convey emotion. This mode houses a childlike, friendly personality, often punctuating sentences with "Demone!" to facilitate bonding with humans, especially children. His alternate Boom Robo Mode, activated under specific conditions, transforms him into a 20.3-meter-tall humanoid form resembling a rock-and-roll performer, complete with punk-style glasses and a fauxhawk. This mode amplifies his personality into a loud, energetic persona prone to exclamations like "It's awesome!" and unlocks his combat capabilities. The transformation trigger is intrinsically linked to Swan White's peril; Mic's AI, based on the mental patterns of her brother Stallion White, subconsciously activates Boom Robo Mode due to embedded brotherly protective instincts—a contingency unforeseen even by Stallion. This mode increases his mobility, achieving a maximum running speed of 194.46 km/h.

Mic relies heavily on the Baribarien (termed Stadio 7 in Boom Robo Mode), a yellow hovercraft support vehicle storing his sound-based weaponry. The Baribarien measures 23.9268 meters long with a 21.4884-meter wingspan, weighs 56.699 tons dry, and reaches emergency speeds of 7,435.78 km/h. It features powerful jaws called Baribarien Teeth, exerting 2.404 tons/cm² of bite pressure, often used to transport civilians. In Boom Robo Mode, the vehicle reconfigures into Studio 7, a mobile stage deploying green Ul-Tech wings and housing Mic's primary instruments: the Giragirahn Double V (an electric guitar/keyboard hybrid), Dokadokahn V (microphone-shaped vocal tools), and Bukabukahn V (a harmonica-type tool introduced in FINAL capable of emitting unconsciousness-inducing frequencies).

His combat revolves around Solitary Wave Discs inserted into his chest-mounted player. Disc P plays an instrumental "Yuusha-ou Tanjou!" to restore and amplify GS-Ride systems or Dual Generators, later upgraded to "Disc P Version Up" featuring "Saikyou Yuusha Robo Gundan" for enhanced effects. Disc M utilizes microwave bursts and hypersonic frequencies to paralyze machinery, associated with "Power of Desire." Disc X analyzes atomic vibration frequencies to annihilate any targeted substance via Solitary Waves, requiring precise molecular data and emitting dramatic organ-guitar music without vocals. Coordinated Disc X deployment by multiple Mic units in space generates a concentrated dark energy blast. His ultimate disc, Disc F, debuted in FINAL, combines Disc X's annihilation with the Molecule Plane effect. Though designed for dual Sounder operation, Mic used it solo after his brothers' destruction, manifesting a golden GaoFighGar hologram wielding the Goldion Hammer during the attack, accompanied by "Let's Final Fusion!!"

Narratively, Mic evolved from a comedic relief figure—often failing interventions and comically ejected from battles with cries of "Ohhh noooooooooooooo!"—into a pivotal combat asset following Boom Robo Mode's activation. His capacity to wield Disc X and Disc F proved critical against high-level threats, including the Sol Masters. He later assumed command of the Mic Force unit. His harmonica tool, Bukabukahn V, was deployed under mistaken circumstances to assist a Repli-Mamoru in accessing a Q-Part.