| Issue | #18 |
| Published | August 1989 |
| Cover Price | 1.00 USD |
| Pages | 36 |
| Editing | Sid Jacobson; Lisa Trusiani (assistant editor) |
| Characters | ALF; Brian Tanner |
| Genre | Humor |
| Pencils | Dave Manak |
| Inks | Dave Manak |
| Characters | ALF; The Tanner Family |
| Synopsis | ALF becomes a giant when he's exposed to some pesticide. |
| Genre | Humor |
| Script | Michael Gallagher |
| Pencils | Dave Manak |
| Inks | Marie Severin |
| Colors | Marie Severin |
| Letters | Rick Parker |
| Characters | ALF; Willie Tanner; Kate Tanner |
| Synopsis | ALF and Willie move a trunk into the attic. |
| Genre | Humor |
| Script | Michael Gallagher |
| Pencils | Dave Manak |
| Inks | Marie Severin |
| Colors | Marie Severin |
| Letters | Rick Parker |
| Characters | ALF; Willie Tanner; Raquel Ochmonek; Dorothy Haligan |
| Synopsis | ALF must take care of Willie when Willie throws his back out. |
| Genre | Humor |
| Script | Michael Gallagher |
| Pencils | Dave Manak |
| Inks | Marie Severin |
| Colors | Marie Severin |
| Letters | Rick Parker |
| Letters | typeset |
| Editing | Sid Jacobson; Lisa Trusiani (assistant editor) |
| Notes | Letters to the editor from Joe Orsborn, Norma McQuaid, Amanda Jordan, Calvin Waisch, Hugh McQuillan, Angela Ayola and Teresa Sussman. |