Warusa, also called Walther or Guamazzo in international versions, acts as the main physical enforcer within the antagonist Time Skeletons trio. He relies on brute strength rather than technical or strategic skills, often operating the group's mecha during fights.

He is tall and muscular, contrasting sharply with the thinner, technically adept Grocky. Warusa displays lower intelligence and greater clumsiness than his teammates, frequently contributing to the trio's failures. His dialogue consistently uses the Kansai dialect, ending sentences with "~man-nen", reinforcing his regional roots and comedic role.

His background receives little exploration in the series. Primarily a loyal subordinate to leader Majo, he participates in attempts to seize the Dynamond gemstone and obstruct the protagonists' search for a missing scientist. His motivations align solely with the trio's collective greed and ambition.

Warusa also appears in the 1993 OVA "Time Bokan: Royal Revival", featuring multiple franchise villain groups in an inter-dimensional race. His role remains consistent, focused on physical tasks and contributing to comedic failures, without significant evolution or added backstory.

Post-series narratives, like the LP drama "Otasukeman: Atasha's Wedding Ceremony", show Warusa years later transitioning into a professional wrestling career, aligning with his established reliance on physical prowess.

No official media, including spin-offs or later Time Bokan series, provides substantive expansion on Warusa's origins, internal conflicts, or transformative character arcs. His portrayal remains consistent as a source of physical comedy and predictable antagonism.