There is a famous alternate version of the pac-man story where pac-man is an astronaut who is having hallucinations about the ghosts of his compatriots, and the dots are pills.
This game is not the same, but it's fairly similar, and has some profanity and violence. Was this game the origin of that pac-man story, or is it parallel development, or do they have a common source?
In any case, an interesting game from a famous author who has disavowed all of their speed-IFs.