I turned up this little "gem" at Cheat Codes .Com- I shudder to think how I used to consider it a reliable site.

"Sasquatch-
First, obtain the Jill monster. Use Jill in the Pappas errantry at least ten times in a row, without resting for a single week. Next, rest your monster for 10 months in a row. Go to the Pappas errantry ten more times in a row. Save the game at this point. Approximately one year later, it will die. Hold Start + Select to reset the game. Then, bring your Jill to the village and combine it with a Golem using the "Big Footstep" as a seasoning. This should result in a Sasquatch. Note: This may take several attempts."

Someone has a *really* sadistic sense of humor.