Gun X Sword was first announced by JVC in May 2005 through the reveal of its official website. Despite its aesthetics in the anime's premiere, director
Goro Taniguchi claimed
Gun Sword is not a Western series. He wanted to convey the series is not simple, that is why he decided to bring the mecha area already in the first episode. Kurata wanted to play homage to the mecha genre which had been highly popular during the making of the anime. Van was often compared with
Vash the Stampede from
Trigun due to how they avoid fights but Van was more written as a lazy character rather than the pacifist fighter from the other series. Still, the series is not only inspired by mecha such as
Voltron, but also as Hollywood movies such as
Independence Day. Taniguchi expressed difficulties on the team working together to produce their own title after several discussion about the trajectory of the narrative. Takahiro Kimura made the character designs with Van's design having several primilar looks in the making of the series which took about six months to finish. Wendy and Carmen instead led to faster results. Meanwhile, Kurata wanted the villains to look menacing as a result of the episodic style using ideas from
Read or Die. His favorite villain was Lucky Roulette as he considers him an "epitome" of villains that commonly seen in B movies. As the first episode had a violent style, the next ones were instead given a more calm story, resulting in a change of villains into Baron Mayor. Kimura kept designing characters after reading the scripts. The thirteenth episode was specifically written as the midpoint of the story as the style would change and become more serious until the climax. Across the first half, the villains were written as hilarious until the introduction of the main antagonist, Claw. In order to make Claw stand out as a villain, he was given both a polite personality that contrasts his murderous intent. In the end, the staff believed Van's and Wendy's story were fully completed, making no need for a sequel. Several studios collaborated with Tangichu in the making of the anime, making it important for anime fans. A Blu-ray box was released on April 26, 2017. In the DVD volumes of
Gun X Sword, there are 2 episodes tied into each volume in the extras with episode 13 on its own in the final one. The opening theme is "GUNXSWORD" by
Kōtarō Nakagawa while the ending themes are "A Rising Tide" by
Shuntarō Okino (episodes 1 to 8, 10, 12 to 16, 18 to 21, 23, 25), "Paradiso" by Hitomi (episodes 9 and 11), "
S.O.S" by
Kikuko Inoue,
Houko Kuwashima,
Satsuki Yukino &
Saeko Chiba (episode 17), "A Rising Tide" (acoustic version) by Shuntaro Okino (episode 22), "Calling You" by Shuntaro Okino (episode 24), and "GUNXSWORD" (starting again) by
Kotaro Nakagawa and
Ondekoza (episode 26). The insert songs are "Niji no Kanata" by
Satsuki Yukino (episode 3) and "La Speranza" by
Hitomi (episodes 16, 25). Two official CD soundstracks were also released in Japan on September 22, 2005 and December 7, 2005. The series was licensed in June 2005 for North America by
Geneon Entertainment, who produced an English dub overseen by
New Generation Pictures. The dub is also available in Australia from
Madman Entertainment and in the
United Kingdom by
MVM Films. At
Anime Central 2010, North American anime distributor
Funimation announced that they have rescued
Gun X Sword and re-released the series in late 2010. In 2022,
Crunchyroll got access to the series and started streaming it both in Japanese and English. These are a series of 13
omake episodes of
Gun Sword tied in very loosely to the plot with the characters as chibi puppets. The main characters are Wendy and her turtle, Kameo, the size of a human in this series and able to talk. Michael, Van and Carmen also appear voiced by their voice actors in the mainstream episodes. All the episodes seem to center around analyzing various events in
Gun X Sword and mocking the themes displayed. ==Other==