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"?
Well, then you'd be taken directly to the ending sequence!
Which, like a lot of the games of the time, isn't all that special.
But don't worry about that.