Let's just get this out of the way right up front: Yes, there is a game called Mr. Nutz. It stars a squirrel.
It's kind of long and kind of hard (*snicker*), and you get passwords to kind of help you along.
But what if you went to the Password screen, and instead of entering the password you had, you entered "VITAMI"?
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Well, then you'd be taken directly to the ending sequence!
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Which, like a lot of the games of the time, isn't all that special.
But don't worry about that.