The back of the UK Whirligig box says:
The first ever game to use LIGHTSOURCE 3D - Maelstrom's revoluntionary system of shaded ultra-solid 3D graphics.
* An epic all-action game
* Lightning fast speeds of play
* Graphic techniques BEYOND the arcade
* 100 billion enemy ships to blast
* An awesome final objective to reach
... which just goes to show what a load of rubbish the box copy really was!
The UK Atari ST box for Whirligig was a large size crystal case which could accomodate both 3.5 inch disks and 5.25" floppies if required.
The game came supplied with a small instruction booklet.
No mention is made in the advert of the PC or 8-bit conversions that were either never finished (8-bit) or never released in the UK (PC).