I beat Punch-Out twice today. I got my roommate and my girlfriend to try. I've never seen anyone come so close to losing to Glass Joe! I remember, though, a rumor a friend of mine told me when I was ten or eleven that it was possible for Mike Tyson to kill you in his fight with you, and that the closing shot of the game will be him at your grave. I don't have the Mike Tyson version, so I don't know. I'm sure it's probably just one of those child urban legends that you hear a lot of, but I wouldn't mind a definitive answer.