Tracklist
| Skull Side |
| Big City |
| Peroxide |
| Spider Leg Side |
| Reason For Existence |
| Cancer |
Versions
| Category | Artist | Title (Format) | Label | Category | Country | Year |
|---|---|---|---|---|---|---|
| SDL 5 | Subhumans | Reason For Existence (7", EP) | Spiderleg Records | SDL 5 | UK | 1982 |
| SDL 5 | Subhumans | Reason For Existence (7", EP, TP, W/Lbl) | Spiderleg Records | SDL 5 | UK | 1982 |
| XEP2 | Subhumans | Reason For Existence (7", EP) | Bluurg Records | XEP2 | UK | 1983 |
