Which Kirby game first introduced Copy Abilities?

The first Kirby game to introduce copy abilities was Kirby's Adventure. Released in 1993 for the NES, it was the first game in the series to allow Kirby to inhale enemies and gain their powers. This innovative gameplay mechanic added a new layer of strategy and variety to the game, enhancing the overall experience for players. Kirby's Adventure set the foundation for the inclusion of copy abilities in future Kirby games, making it a significant milestone in the franchise's history.