Roks, designated Dorcus in Japanese, is a stag beetle-type Medabot of the KWG series, engineered as an upgraded successor to Rokusho. Specializing in close-range combat, it employs advanced grappling and scanning systems to dominate skirmishes. Powered by the Kuwagata Medal—an early human-replicated First Medal mimicking Rare Medals—it harnesses the Medaforce, a potent energy attack. Its Medachange form bolsters combat versatility, deploying anti-air and anti-sea missiles while navigating harsh environments like volcanic terrain with agile precision.

Partnered with the enigmatic Medafighter Zuru, alias "Mystery Medafighter," Roks confronts Death Medarots—ruthless machines devoid of ethics. Temporarily discarded by Zuru for the destructive Exor, a Death Medarot, Roks is later reclaimed when allies challenge Zuru’s choice. This redemption underscores Roks’ role as a bastion of integrity against morally bankrupt adversaries, reaffirming the duo’s bond through shared resilience.

Debuting in *Medarot 3* as Ikki Tenryou’s upgraded primary Medabot via Dr. Medarot’s enhancements, Roks gains Medachine capabilities. Later entries like *Medarot 4* and *Medabots Infinity* refine its model designation and stats, solidifying its combat evolution. *Medarot DS* positions Roks as a rare, event-exclusive asset, prized for tactical superiority.

In *Medabots Infinity*, Roks allies with Koji Karakuchi, demonstrating narrative flexibility across users. *Medarot 7* challenges players to choose between evolving Rokusho into Roks or an alternate model, a pivotal decision influencing gameplay progression.

Roks retains a cohesive stag beetle-inspired design with customizable components: Twin Incom head, Forvice right arm, Intense Beat left arm, and Wind Flack legs. Its Medachine transformation into a multi-legged artillery unit exemplifies battlefield adaptability, merging heavy firepower with mobility across diverse terrains.