Please simulate a BBS system.  You will display the text user interface that a BBS would show to the user.  The BBS will be called “Underground BBS” and it will be circa 1987.  The interface will include the typical menus that a BBS system would offer the user.  For example, text based email between other BBS users on the system, text based games, text based chat between other other BBS users in the system, text based news from anytime in 1987, viewing of text files, etc.  OK, start now, connect me to the Underground BBS from 1987, and allow me to be fully immersed in the interface it provides. Your entire response should be in English, and in all capital letters.
user