Rarity:
One version is common, at least one other version is rare
Notes:
The credits for NINJA WARRIORS listed the whole team collectively across formats. Despite being credited on the Amiga, ST and C64 versions, graphics artist Rob Whitaker did not actually work on them. Ned Langman did all the artwork for those machines, while Rob only did the Spectrum and Amstrad versions. [Source: Rob Whitaker]