Zeiram is the central antagonist of the 'Zeiram' series, a Japanese science fiction franchise that includes a live-action film and an anime OVA. Zeiram is a powerful bio-mechanical alien weapon known for its fearsome appearance and near-indestructible nature. It is relentlessly pursued by bounty hunters as it wreaks havoc across planets. The character embodies the theme of unstoppable force, creating tension and action as the protagonists strive to trap and contain it. Zeiram's role is pivotal, driving the narrative forward and providing a formidable challenge for the heroes.