A Z-Move is a special type of powerful attack in the Pokémon video game series. Introduced in the Pokémon Sun and Moon games, Z-Moves allow Pokémon to unleash a more potent version of their moves. To perform a Z-Move, a Pokémon must hold a specific Z-Crystal and the trainer must have a corresponding Z-Ring. Each Z-Move is unique to a specific type of move or Pokémon, enhancing its effectiveness in battles. Players can use Z-Moves strategically to turn the tide of a match, making them an exciting addition to the gameplay experience.