Nyarth (Meowth in English-language media) appears alongside Jessie and James as a member of Team Rocket in "Pokémon the Movie: Hoopa and the Clash of Ages." During the film, Team Rocket targets the powerful Prison Bottle, an artifact sealing the Mythical Pokémon Hoopa's power. When Nyarth physically handles the bottle, he becomes possessed by the malevolent shadow form of Hoopa Unbound. This possession forces Nyarth to open the Prison Bottle, directly triggering the release of Hoopa's unrestrained destructive power. This act unleashes the shadow entity, which manifests separately and attempts to seize control of the real Hoopa. The shadow then summons multiple Legendary Pokémon, escalating into a large-scale battle threatening Dahara City. Nyarth's unique, self-taught ability to speak human language plays no direct role in this possession. His actions under its influence reflect the Prison Bottle's nature as an Artifact of Doom, overriding free will to achieve release. Across the Pokémon franchise, Nyarth is distinct among his species due to his self-taught human speech and bipedal stance. Achieving these required significant effort, resulting in an inability to learn his species' signature move Pay Day or to evolve. As a core Team Rocket member, he participates in schemes to capture Pokémon, primarily Pikachu, though he occasionally pursues independent motives. His personality includes meta-awareness, fourth-wall breaking, and recurring romantic pursuits of feline Pokémon. Within Team Rocket, Nyarth views Jessie and James as confidants, though he is sometimes excluded from their closer interpersonal moments. Missions are frequently driven by fantasies involving their leader Giovanni. Despite being categorized as a wild Pokémon, Nyarth consistently evades capture by trainers.