| Issue | #6 |
| Published | May 1980 |
| Cover Price | 0.40 |
| Pages | 36 |
| Editing | Danny Fingeroth (reprint editor) |
| Characters | X-Men [Cyclops; Angel; Marvel Girl; Beast; Iceman]; Blob [villain] |
| Genre | superhero |
| Pencils | John Byrne |
| Inks | Joe Rubinstein |
| Letters | Irving Watanabe |
| Genre | superhero |
| Script | Danny Fingeroth |
| Pencils | Carmine Infantino |
| Inks | John Tartaglione? |
| Letters | Irving Watanabe |
| Notes | New bridging page. Credits provided 2005 by Danny Fingeroth. This sequence indexed 2005 by Steven Tice. |
| Characters | X-Men [Cyclops; Angel; Marvel Girl; Beast; Iceman]; Professor X; Intro continued: The Blob [villain] |
| Genre | superhero |
| Script | Stan Lee; Jack Kirby |
| Pencils | Jack Kirby |
| Inks | Paul Reinman |
| Letters | Artie Simek |
| Editing | Stan Lee (original editor) |
| Reprinted | from X-Men (Marvel, 1963 series) #3 (January 1964) [pp. 13-24] |
| Characters | Cyclops; Vanisher [cameo]; Blob [cameo]; Stranger [cameo]; Hulk [cameo] |
| Synopsis | Explanation of Cyclops' powers. |
| Genre | superhero |
| Script | Roy Thomas |
| Pencils | Werner Roth |
| Inks | John Verpoorten |
| Letters | Artie Simek |
| Editing | Stan Lee (original editor) |
| Reprinted | from X-Men (Marvel, 1963 series) #43 (April 1968) |