Rarity:
One version is common, at least one other version is rare
Notes:
[1] All 8- and 16-bit home computer conversions (including the Amiga) were inexplicably released in Europe in 1988, 18 months after the Amstrad CPC release in late 1986.
[2] 68K code by Mark Bullock and Neil Metcalfe; Amiga conversion by Rick Frankish.