Live action TV
Description
Gedoruridoru is a monster warrior belonging to the Kaijuu Iseijuu Tai, the monster mutant soldier corps, appearing in the forty-second episode of the series. Its background establishes it as a being created directly from the cells of another creature, Gedorian.

In terms of physical characteristics, Gedoruridoru initially manifests in a form resembling a larva or caterpillar. It possesses the notable ability to grow into a massive, powerful entity by absorbing energy from virtually any source. However, this transformation is not permanent; when its energy reserves are depleted, it reverts to its original, smaller larva-like state.

Personality and motivation are largely defined by its function as a combatant. Gedoruridoru acts as a direct subordinate, working in tandem with its creator, Gedorian, with the shared objective of defeating the hero, Kamen Rider BLACK RX. Its primary motivation is combat-oriented, focused on draining the hero's power to achieve victory.

The role in the story is central to a single episode's conflict. Gedoruridoru, alongside Gedorian, launches an assault on the protagonist. Its initial attack proves highly effective, as it succeeds in absorbing enough of BLACK RX's energy to drive the hero to the brink of defeat. The creature's fortune changes when Dasumada Dai, a major in the monster army, intervenes, attempting to steal credit for the kill. This interruption causes Gedoruridoru to run out of energy, forcing it to revert to its weaker form and allowing the hero to escape. Later, Gedorian sacrifices itself to absorb a massive amount of energy from the Crisis Fortress, transmitting this power to Gedoruridoru. Thus re-energized, the monster attacks once more. The key relationship is with Gedorian, who is both its progenitor and ally, ultimately sacrificing its own existence to empower Gedoruridoru. The creature does not exhibit significant development or change beyond its physical growth and depletion cycles.

Regarding notable abilities, Gedoruridoru can fire destructive beams from both of its arms. Its primary power is the absorption of energy to fuel its growth and attacks. A critical weakness, however, is the slight, momentary gap that occurs during its energy absorption process. The hero uses the Macro Eye ability to perceive this vulnerability. Exploiting this opening, BLACK RX severs Gedoruridoru's arm with the Revolcane, then destroys it with a combination of the RX Kick and the Revolcrash finishing move. Upon its destruction, the reverse flow of energy causes Gedorian to crumble into dust as well.