The game follows the character of Pac-Man, a yellow circle with a mouth, as he navigates through a maze, collecting pellets while avoiding four ghosts named Blinky, Pinky, Inky, and Clyde. The ghosts' movements are determined by an AI algorithm, and they can be eaten by Pac-Man after he eats a power pellet. Pac-Man remains an icon of the video game industry and a beloved character for many gamers.