| Label: | Numa NU 4 |
| Genre: | Electronic |
| Style: | Synth-pop |
| Format: | Vinyl (7" , Single , 45 RPM) |
| A | Berserker | 4:05 |
| B | Empty Bed, Empty Heart | 3:10 |
| Label: | Numa NUM 4 |
| Genre: | Electronic |
| Style: | New Wave, Synth-pop |
| Format: | Vinyl (12" , Single , 45 RPM) |
| A | Berserker | 6:40 |
| B1 | Empty Bed, Empty Heart | 3:10 |
| B2 | Berserker | 4:05 |
| Label: | Numa NUP 4 |
| Genre: | Electronic |
| Style: | Synth-pop |
| Format: | Vinyl (7" , Picture Disc , Shape , Single , 45 RPM) |
| A | Berserker | 4:05 |
| B | Empty Bed, Empty Heart | 3:10 |
| Label: | TELDEC 6.14320 AC |
| Genre: | Electronic |
| Style: | Synth-pop |
| Format: | Vinyl (7" , Single , Promo) |
| A | Berserker | 4:05 |
| B | Empty Bed, Empty Heart | 3:05 |
| Label: | TELDEC 6.14320 AC |
| Genre: | Electronic |
| Style: | Synth-pop |
| Format: | Vinyl (7" , Single) |
| A | Berserker | 4:05 |
| B | Empty Bed, Empty Heart | 3:05 |