At least one copy of the TRS-80 version contains a typo in one of the clues. If you see a message containing "72 x" you should replace that segment with "7 2x".
Some websites incorrectly attribute this game to John R. Olsen rather than John Olson.
Barry Hart produced an unofficial port of the TRS-80 game (as Gym Adventure) to C64 in 2017.
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