Hole Hunter suggests, by its name, a mechanic of digging or navigating holes, in line with arcades like Dig Dug or Mr. Do! that popularized that kind of game structure in the early '80s. There isn't, however, enough reliable documentation to confirm with certainty its specific development or exact release year.
Faced with that lack of certainty, we prefer honesty: it's one more piece of that era's scattered catalog, of interest to the curious collector rather than a well-documented chapter in the medium's history.

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