OVA
Description
Guryushika appears exclusively as the primary antagonist in the first episode, "Rusty Angel," of the 1993 OVA adaptation. This character combines elements of the manga's Makaku and Kinuba into a single entity. Originally a Coliseum champion, he became a notorious criminal hunted for his habit of consuming human brains, carrying a 1 million chip bounty. He operated with a partner named Rasha, sharing a closer bond than Makaku had in the manga. During a nighttime pursuit targeting a woman, bounty hunter Daisuke Ido intervened, saving the woman and severing Rasha's arm while sustaining injuries. Guryushika witnessed Alita, who had followed Ido, decapitate Rasha, triggering intense rage.

In his initial combat form, Guryushika possessed a large, metallic brown cyborg body without specialized weaponry, distinguished by a light pink mohawk. After Alita severed his right arm and knocked him into the sewers, he sought refuge with cybernetics engineer Chiren. Learning he had fought Ido and Alita, Chiren provided significant cybernetic reconstruction. His upgraded body featured dark green armor plating on the upper torso, sunglasses obscuring his eyes, and the prominent addition of the number "99" – identical to Alita's manga Motorball designation. Crucially, it integrated supersonic fingertip cutters into his right hand, inspired by Kinuba's grind cutters, enabling high-speed slicing through nearly any material.

The OVA streamlined his personality compared to the manga counterparts, depicting him primarily as a violent criminal fixated on brain-eating. His sole motivation after defeat became vengeance against Alita, though his reaction to Rasha's death indicated a capacity for partnership loyalty absent in Makaku. Chiren orchestrated a rematch in the Scrapyard junkyard. Guryushika initially gained the advantage using his supersonic cutters, but Alita's superior skills prevailed. Alita bisected him using a plasma-based strike, differing from Makaku's manga demise.

Reimagined as Grewishka in the 2019 live-action film, portrayed via motion capture, this iteration served as a cyborg assassin employed by Nova. He developed a vendetta against Alita after an initial defeat, calling her "Little Flea." Alita also bisected him using plasma-based weaponry, though the narrative context differed. The film version incorporated elements like Chiren and the composite antagonist concept from the OVA, not directly adapting the manga's separate villains.

Guryushika does not feature in the original manga, its sequels "Last Order" or "Mars Chronicle," or any other spin-off media. His existence and narrative arc are confined solely to the OVA and the 2019 film's Grewishka adaptation.