Mt . Gulg ( theme ) " Mt . Gulg " , originally known as " Gurgu Volcano " or " Mount Gulg " ' , is a prominent background theme in the original " Final Fantasy " . It is an iconic track of the series and has been referenced to in other games . It was composed by Nobuo Uematsu . Game appearances . " Final Fantasy " . " Mt . Gulg " is the background theme for its eponymous location , as well as the Giant ' s Cave and the Cavern of Earth . It is the fifteenth track of the " All Sounds of Final Fantasy I & II " album . " Mt . Gulg " was arranged by Nobuo Uematsu for the Wonderswan Color release , and this version has been used in all subsequent ports and remakes . It is the seventeenth track of the original soundtrack . " Final Fantasy IX " . " Mount Gulug " is an arrangement of " Mount Gulg " by Nobuo Uematsu , and plays in Mount Gulug . It is the twenty - fifth track of the third disc . " Dissidia 012 Final Fantasy " . The original " Mount Gulg " makes an appearance in this prequel to " Dissidia " as " " Mt . Gulg - original - " from FINAL FANTASY I " , which is the fourth track of the soundtrack ' s first disc . It can be bought from the PP Catalog with 240 PP . After being purchased , it can be selected by default in any battle including the Warrior of Light , Garland or the Chaos Shrine . " Theatrhythm Final Fantasy " . " Mount Gulg " appears in the Nintendo 3DS version as a bonus Field track from the Chaos Scores . In order to be played , It must first be found in a dark note . In the iOS version , " Mount Gulg " can be downloaded as part of the " Final Fantasy " Field Music Basic Bundle , as well as the game ' s " Main Theme " and " Matoya ' s Cave " . " Mount Gulg " is a particular exception in the songs available , as all the other included songs are in their original form , but the " Mount Gulg " theme is the arrangement for the Wonderswan Color and PlayStation releases , because the original NES " Gurgu Volcano " was too short . " Theatrhythm Final Fantasy Curtain Call " . " Mount Gulg " reappears as a playable track in the sequel , this time as a standard Field Music Sequence track . " Chocobo Racing " . " Mithril Mines " is an arrangement of " Mount Gulg " by Kenji Ito and plays at the eponymous track . It is the twenthieth track of the game ' s soundtrack album . However , the background theme for the game ' s Vulcan - O Valley track is called " Gurgu Volcano " , but is an arrangement of the " Final Fantasy II " " Battle Scene 2 " theme . It is the twenty - fourth track of the game ' s soundtrack . An arrangement of " Mount Gulg " named " Mt . Gulg " by Yuzo Takahashi is present in this game . It is the fourth track of the game ' s original soundtrack . Arrangement album appearances . " Symphonic Suite Final Fantasy " . An orchestral performance of " Mount Gulg " starts " Symphonic Suite ' s " " SCENE VI " , and is succeeded in this track by the " Final Fantasy II " " Dungeon " and " Imperial Army Theme " . It is the sixth track of the album of the concert ' s recording . " Piano Opera Final Fantasy I / II / III " . A piano arrangement of the original " Mount Gulg " theme appears as the fourth track of the album . It was arranged by Hiroyuki Nakayama . " Final Fantasy IX Chips " . An 8 - bit arrangement of " Final Fantasy IX " " Mount Gulug " by ajiponn is part of this chiptune album as its sixth track .