First released in 1997, the MOPy fish program holds the
Guinness world record for the most downloaded cyberpet.
[2] The MOPy fish can remember how it has been treated over the last week, and alters its behavior to correspond with the effort put into its care. It will, for example, become aggressive if not fed in five days, and may act depressed when starved for as many as tens days. If the MOPy fish is neglected and not fed for three weeks, it will fall sick and die. When the fish dies, all the MOPy points accumulated will be lost and the fish can only be brought back to life via a built-in menu.
[3] However, since MOPy fish is controlled by the operating system calendar, the fish can optionally also be brought back to life by manipulating the computer's date entry. Different versions of MOPy fish are still available for download at several websites.
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