MROB-6720M is a battle theme in Mother 3. It is mainly techno, although the heavy use of drums results in a heartbeat track that is fairly even. This song plays during battles against Li'l Ms. Marshmallow and Unwelcome Gusts and the unused enemy Green Train . The song is a remix of Sanctuary Guardian (Track) from Earthbound which is in turn a remix to Battle With a Dangerous Foe from MOTHER