Editing Space Channel 5 (section)

===Audio===
====Music====
The music for ''Space Channel 5'' was composed by Naofumi Hataya and Kenichi Tokoi of Sega's music label WaveMaster. Hataya also acted as sound director.<ref name="SC5composerA"/><ref name="SC5composerB"/> The musical style, inspired by big band jazz of the 1950s and 60s, was one of the earliest elements to be decided upon.<ref name="1UPinterview"/><ref name="Retro"/> Hataya attributed the game's musical direction to Mizuguchi's guidance throughout production.<ref name="RocketHataya"/> The musical style changed with each stage, with later sections incorporating [[Techno Music|techno]] and [[Trance music|trance]].<ref name="IGNinterviewA"/> The in-game soundtrack mixed CD-quality music with midi sound samples.<ref name="DCMag"/> According to Hataya, one of the hardest aspects of music development was the variety of genres and fitting all the score onto the game disc.<ref name="RocketHataya"/> Music production ran simultaneously with the game's production, with the sound team at first using concept art and in-production gameplay. Late in development, the story caused a lot of additional work for the team. The final total of in-game music was estimated at 70 minutes.<ref name="SC5diary"/>

The game's main theme was "Mexican Flyer", composed by [[Ken Woodman]] in 1966.<ref name="1UPinterview"/> Mizuguchi approached Woodman about using the theme. Woodman was surprised that someone wanted to use the theme for a video game.<ref name="IGNinterviewA"/> The use of "Mexican Flyer" in the game's early presentation video informed the direction of the music.<ref name="DengMusic"/> Getting the rights to the track proved difficult, as the track was extremely obscure and had not been used in any media since its release.<ref name="Retro"/> The ending theme "Pala Paya" used vocals performed by WaveMaster staff.<ref name="DengMusic"/> A soundtrack album for the game was published by [[Marvelous Entertainment]] and distributed by [[VAP (company)|VAP]] on February 21, 2000. The album featured 22 tracks, including a remix of "Mexican Flyer".<ref name="SC5ost"/> Tracks from ''Space Channel 5'' were included in the compilation album ''Space Channel 5 20th Anniversary: Gyungyun Selection'' by UMA on December 18, 2019.<ref name="Album2019"/>

====Voice cast====
Sega chose not to promote the game's voice cast.<ref name="UlalaVoiceA"/> Most of the voice roles were performed by members of the game's staff.<ref name="SP5jacksonA"/> This was due to the team wanting full control of how characters were portrayed, and the need to do quick re-recording sessions. Ulala's Japanese voice actress was similarly pulled from Sega staff. According to Mizuguchi, the recording process was so strenuous, and his demands so exacting that the actress was brought to tears.<ref name="Retro"/> Journalist James Mielke attributed Ulala's voice to Mineko Okamura.<ref name="UlalaVoiceB"/> Okamura later confirmed her role, saying her demo voice was kept in the final game after positive feedback from the press. Professionals [[Show Hayami]] and Kae Iida were hired for the roles of rival reporters Jaguar and Pudding respectively, with Iida originally being planned for the role of Ulala.<ref name="4Gretro"/> Ulala was voiced in English by [[Apollo Smile]], then a notable television personality.<ref name="UlalaVoiceA"/>

A notable cameo was [[Michael Jackson]] himself, featuring in the game as the character "Space Michael". A long-term collaborator with and fan of Sega, Jackson was shown a near-finished version of the game by Sega staff member Shuji Utsumi. Jackson loved the game and wanted to be featured in it.<ref name="1UPinterview"/><ref name="SP5jacksonB"/> Mizuguchi initially wanted to refuse the request, as the game was only a month away from completion, but the team wanted to include Jackson, so they substituted a Morolian-controlled NPC character for a model based on Jackson and added moves based on the singer's famous dance moves. Initially thinking Jackson would dislike it, Mizuguchi was surprised when Jackson approved, realising the pressures the team were under, and provided voice lines for the character.<ref name="SP5jacksonA"/>