Koji Morimoto, an experienced animator and collaborator with Studio 4°C, joined forces with techno artist Ken Ishii to create an AMV. The collaboration between the two artists resulted in "EXTRA," a brief animation featured on CD-ROM, which explores various topics related to technology, music, imagery, and the internet. The title of the animation, "EXTRA," piques the viewer's curiosity right from the start, leaving them questioning its meaning.