The soundtrack was composed by Makoto Tomozawa. The sound designers found it a challenge to make the sounds for the game, with one of them, Toshio Kajino, having never worked on a "Mega Man" title. The theme for the Japanese version of the game is "Another Sun" and the ending theme is , both by Reika Morishita. On February 21, 1998, Capcom published a CD of the game called . It contains a total of 40 tracks including the opening and ending themes. Tomozawa notes that the CD still lacks other tracks from the game due to the large number of tracks it had.