The Quest of Ki is an action-adventure game developed by Namco for the Nintendo Entertainment System. It was released in Japan in 1988 and later in North America in 1990. The game follows the story of Ki, a young girl who must navigate through a series of mazes and defeat various enemies in order to save her people. The Quest of Ki is known for its challenging gameplay and unique mechanics, which require players to use Ki's abilities to solve puzzles and overcome obstacles. With its engaging story and fun gameplay, The Quest of Ki is a must-play for fans of classic NES games.