Influences

In an interview, the writer Kazuki Nakashima cites Ken Ishikawa, co-creator of Getter Robo, as one of Gurren Lagann's influences. Gurren Lagann occasionally pays homage to Ishikawa's Getter Robo, particularly towards the end of the series, where the scale becomes absurd, with the robots steadily becoming bigger and bigger, much like Getter Robo more specifically, the manga version of Getter Robo Go. The final enemy also bears a striking resemblance to La Gooth of Records of Nothingness, another work by Ishikawa. Nakashima, however, wanted to conclude the story of Gurren Lagann in a more reasonable fashion than what Ishikawa usually does in his works. According to Jason Green from Anime News Network, the anime was influenced by previous Gainax anime, particularly in the character development of the protagonist Simon, who goes through three stages in his character development during the three arcs of the series. Each of these stages in his development were influenced by protagonists from several previous Gainax anime: Shinji Ikari from the Neon Genesis Evangelion franchise, Noriko Takaya from Gunbuster, and Ken Kubo from Otaku no Video. The animation on the show pays special tribute to the animation and character designs of Yoshinori Kanada.

Conflicts[edit]
Takami Akai, the producer of the series and a co-founder of Gainax, announced that he would resign his position effective episode five, which aired on April 29, 2007, over comments that he made regarding posts on the Japanese textboard 2channel. Akai and another Gainax employee, Keiko Mimori, made disparaging remarks about comments criticizing the animation style of the fourth episode of Gurren Lagann, which was completely directed by guest and friend Osamu Kobayashi. With regard to reading the fan criticisms, Akai stated that it was "like putting [his] face next to an anus and breathing deeply." Fans later became aware of his comments, and he announced his departure from the company he helped found.

As a result of the series airing at a child-friendly time slot, the staff members had problems with episode 6. Although that episode had a subplot involving peeking into the women's bath, the television stations believed it was suitable when reading the script. Once they completed the animation footage, the station said they could not air that.