Rare promotional 12". Only 1000 copies pressed, according to an Orb article/discography in Record Collector magazine. Some were 'Distributed to D.J.'s and Specialist Dance shops, and around half were used for export.' (Original stamped sleeve).

• A A Huge Ever Growing Pulsating Brain That Rules From The Centre Of The Ultraworld (Orbital Dance Mix)
• B1 A Huge Ever Growing Pulsating Brain That Rules From The Centre Of The Ultraworld (Orbital Radio Mix)
• B2 A Huge Ever Growing Pulsating Brain That Rules From The Centre Of The Ultraworld (Aubrey Mix MK 2)