Director Tomino actually started planning for a Gundam sequel in February 1984. The first memo dated February 20 included themes related to staff work, such as "What is missing?/What do you really want to do?". From February to May is a period of trial and error, with the "Zeta Gundam" proposal set in the future U.C.0111 (Triple One) and the "Mobile Suit His Alpha Gundam" proposal set in the past U.C.0045. is written. In the "Zeta Gundam" proposal, there is an idea that goes beyond the Newtype, "Gather Stime," which allows one to gain the mental identity of others. Around the beginning of June, a story line close to its current form began to come together, and since then, it has been refined repeatedly based on it. On August 20, the basic background titled "Situation 7 years later..." and a plot memo for one course will be completed. In November 1984, it was officially announced. Despite the considerable preparation period for a TV anime, the design decision and commercialization of the main character Z Gundam were delayed due to its complicated design and deformation mechanism. Due to the participation of multiple designers, the actual design work took an unexpectedly long time, and the appearance on the show was delayed until the third cour in the second half. For this reason, the need for a Gundam to play the leading role in the first two courses until the appearance of the Zeta Gundam arose, and the appearance of the Gundam Mk-II was decided. Under the order from Bandai that "Mk-II is a descendant of MSV", from RX-78 Full Armor Gundam and Heavy Gundam. In addition, it was decided that Yasuhiko would only work on the design and not the drawing, and the pillar of the actual drawing was the three-dimensional drawing that contrasted with Yasuhiko, who has a soft pattern with nuances. It was
Hiroyuki Kitazume who was influenced by Tomoken Kogawa with a solid pattern. Yoshiyuki Tomino crammed his frustrations into
Zeta Gundam. He created the anime with the idea of telling viewers "Hey, watch my new Gundam, youngsters. Why are you not so lively like them in Z?" Tomino has mixed feelings about
Zeta Gundam. Tomino did not like the series and believes he should have ended the story in the first TV series. However, at the same time, he noted that thanks to
Zeta the franchise became more popular.
Soundtrack A majority of the series' background music was written by Japanese
composer Shigeaki Saegusa. The melodies of the two opening themes and sole ending theme were written by American pop singer/songwriter
Neil Sedaka. The first opening song used is called which was performed by
Mami Ayukawa, and used for the first twenty-three episodes. "Zeta - Toki wo Koete" was based upon the song "Better Days are Coming" from Sedaka's 1972 album
Solitaire. The second opening song used is entitled and was performed by
Hiroko Moriguchi, this second opening song is used in episodes twenty-four to fifty. The song "Mizu no Hoshi e Ai wo Komete" was derived from an unreleased song entitled "For Us to Decide". The sole ending song used for the series is called which was sung by Mami Ayukawa. "Hoshizora no Believe" was adapted from the song "Bad and Beautiful" from the 1976 album ''Steppin' Out''. In addition to the opening/ending songs an insert song was also made called . This song is sung by Hiroko Moriguchi and is used in episode twenty. The opening and ending songs differed for the International release version, as well as Japanese streaming versions, as opposed to the original. The opening song used is called which was composed by Saegusa, while the song used for the endings, , was also written by Saegusa. The songs used for the three films based on
Mobile Suit Zeta Gundam were all performed by
Gackt, and were compiled and released on his tribute album
0079-0088. The first film
Heirs To The Stars uses two songs; "
Metamorphoze" is used as the opening song while is used for the ending. The second film
Lovers features the ending song "Mind Forest", which was included on Gackt's album
Crescent. The final film made,
Love is the Pulse of the Stars, has two songs: "Love Letter" is used as an insert song, followed by the ending song "Dybbuk". == International release ==