The untold story of how Japan became a cultural superpower through the fantastic inventions that captured-and transformed-the world's imagination. The Walkman. Karaoke. Pikachu. Pac-Man. Akira. Emoji. We've all fallen in love with one or another of Japan's pop-culture creations, from the techy to the wild to the super-kawaii. But as Japanese media veteran Matt Alt proves in this brilliant investigation of Tokyo's pop-fantasy complex, we don't know the half of it.