Still sealed U.S. 12" issue from 1989. Including 'Sonic Boom' (Megamix 7" Version, Megamix 7" Instrumental, Supreme Megamix 12" Version & Supreme Megamix 12" Version Instrumental).
- A1 Sonic Boom (Megamix 7" Version)
- A2 Sonic Boom (Megamix 7" Instrumental)
- B1 Sonic Boom (Vocal Supreme Megamix 12" Version)
- B2 Sonic Boom (Supreme Megamix 12" Version Instrumental)