| Official |
|---|
| 1.1 | Bad Boy | 5:50 | Den Harrow | Bad Boy | |
| 1.1 | Bad Boy | 5:50 | Den Harrow | Bad Boy | |
| 1.7 | Bad Boy | 5:54 | Den Harrow | Maxi Hit Sensation | |
| 1.4 | Bad Boy | 5:53 | Den Harrow | Maxi Hit Sensation | |
| 1.1 | Bad Boy | 5:49 | Den Harrow | I Love Disco Diamonds Collection, Volume 17 | |
| 1.1 | Bad Boy (extended version) | 5:49 | Den Harrow | I♥ZYX: Italo Disco Collection 24 | |
| 1.2 | Bad Boy (12" version) | 5:47 | Den Harrow | ZYX Italo Disco: History 1985 | |
| Bootleg |
|---|
| 1.3 | Bad Boy (12'' Version) | 5:49 | Den Harrow | The 12'' Collection 1984-1987 | |
| 1.76 | Bad Boy (maxi version) | 5:55 | Den Harrow | Ocean of Love: New Generation Italo Disco | |
