A mastering error on most copies of the Amiga version causes the final level to crash. A working version is preserved by the SPS project.
The manual had got words from the game ("Dockyard, Atari, Bio-bot", ...) printed on each of the four edges of each page. The copy protection scheme asked questions from these words.
Information also contributed by Martin Smith
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Trivia contributed by Thomas Perl, Patrick Bregger.