Originally a music video for the song Extra by Ken Ishii, but it was later adapted into a 20 minute OVA. Depicts an extremely violent future world where humans and robot-aliens brutally kill each other.
| Release Date | January 1, 1996 | |
|---|---|---|
| Status | Released | |
| Original Title | Extra | |
| Runtime | 20min | |
| Budget | — | |
| Revenue | — | |
| Language | — | |
| Original Language | Japanese | |
| Production Countries | Japan | |
| Production Companies | STUDIO4℃ | |