Tracklist
| A | 99 Worlds | 3:35 |
| B | Are You A Boy Or Are You A Girl | 2:36 |
Barcode and Other Identifiers
- Barcode: 0 2292-57316-7 8
- Rights Society: GEMA/BIEM
- Matrix / Runout (Side A, stamped): R/S Alsdorf 229 257316-7-A
- Matrix / Runout (Side B, stamped): R/S Alsdorf 229 257316-7-B
Other versions
| Category | Artist | Title (Format) | Label | Category | Country | Year |
|---|---|---|---|---|---|---|
| CD45-18188, CD 45 18188 | Peter Wolf | 99 Worlds (CD, Single, Promo) | MCA Records, MCA Records | CD45-18188, CD 45 18188 | US | 1990 |
| MCA-53726 | Peter Wolf | 99 Worlds (7") | MCA Records | MCA-53726 | US | 1990 |
