| Issue | #20 |
| Published | February 1990 |
| Cover Price | 2 |
| Pages | 36 |
| Editing | Kim Thompson |
| Genre | martial arts; funny animal |
| Pencils | Stan Sakai |
| Inks | Stan Sakai |
| Colors | Tom Luth |
| Genre | martial arts; funny animal |
| Script | Stan Sakai |
| Pencils | Stan Sakai |
| Inks | Stan Sakai |
| Letters | Stan Sakai |
| Notes | Groo appears in quick doodle by Aragones on page 5 |
| Reprinted | in Usagi Yojimbo Book Five (Fantagraphics, 1992 series) #[nn] |
| Genre | martial arts; funny animal |
| Script | Jim Lawson |
| Pencils | Jim Lawson |
| Inks | Jim Lawson |
| Letters | Jim Lawson |