Shuriken Sentai Ninninger (手裏剣戦隊ニンニンジャー, Shuriken Sentai Ninninjā, Shuriken Squadron Ninninger) is a Japanese television series, the 39th entry of Toei's long-running Super Sentai metaseries, following Ressha Sentai ToQger. It is the third ninja-based Sentai, and the fourth to be based on Japanese mythology and culture (after Samurai Sentai Shinkenger) and aired from February 22, 2015 to February 7, 2016, replacing Zyuden Sentai Kyoryuger and was replaced by Doubutsu Sentai Zyuohger. The program joining Kamen Rider Drive, and later, Kamen Rider Ghost in the Super Hero Time line-up on TV Asahi affiliate stations, until concluding on February 7, 2016. Ninninger also serves as the 40th anniversary of the franchise.^[1][2][3] The lead screenwriter for the series is Kento Shimoyama and Kousuke Yamashita serves as the series' composer. Its footage is used for the American Power Rangers season, Power Rangers Ninja Steel and its follow-up season, Power Rangers Super Ninja Steel.^[4]

The cast were introduced to the public at a special event at Tokyo Dome City on January 24 and 25, 2015.^[5] The characters themselves debuted in the film, Ressha Sentai ToQger vs. Kyoryuger: The Movie.

Ninninger began airing in South Korea as Power Rangers Ninja Force.

Centuries ago, the ruthless feudal warlord Gengetsu Kibaoni was slain by the Igasaki Ninja clan, before discarding his humanity to become a Yokai. In his first attempt to rise again, Kibaoni was defeated and sealed by Yoshitaka Igasaki, a man known as the Last Ninja, but three generations later, Kibaoni is unsealed by his retainer Kyuemon Izayoi. As only members of Igasaki's bloodline can stop the rampaging Yokai, Yoshitaka's son Tsumuji Igasaki assembles the Ninningers, composed of his children Takaharu and Fuka and their cousins Yakumo Kato, Nagi Matsuo, and Kasumi Momochi, to master their clan's Shuriken Ninja Arts (手裏剣忍法, Shuriken Ninpō) and fight the Kibaoni Army Corps. The team is later joined by Kinji Takigawa, a Yokai Hunter from the United States who becomes Yoshitaka's disciple after earning his trust.^[1][2][3] Also, according to their grandfather, one among them will be chosen to inherit the title of Last Ninja, and become the guardian of the Igasaki family's ultimate treasure, the "End Shuriken", which is also coveted by the Kibaoni Corps in their plan to revive their master and take over the world by fear.

The trademark for the series was filed by Toei Company on September 25, 2014.^[6]

TV Asahi producer Chihiro Inoue brought up three ideas at the show's premiere conference. First was that they will continue to make Super Sentai fun and entertaining for children by keeping the same colorful action scenes, but they will use traditional Japanese musical themes such as those found in festival music. The second point was a desire to raise the agelessness of the series by including Toshihiro Yashiba and Takashi Sasano in the cast so adults and grandparents can enjoy the show with their children and grandchildren. The third point is that the supporting staff are all enthusiastic about the series. Inoue also wanted fans new and old to watch for the April 5, 2015 broadcast of the show (which has since been pushed back to April 12 due to Ninninger's premiere being pushed back a week) as he planned a special homage to Himitsu Sentai Gorenger, which premiered on April 5, 1975. The My Navi News reporter noted similarities between Gorenger and Ninninger, particularly how the Ninninger team members are named with Japanese color names rather than English. He also noted the prior ninja-themed Super Sentai Ninja Sentai Kakuranger and Ninpuu Sentai Hurricaneger, but felt that the story of Ninninger would be different.

Toei Company producer Naomi Takebe brought up the show's catchphrase being "Shinobi, but not hidden" (忍びなれども忍ばない, Shinobi nare domo shinobanai), explaining that they would be focusing on actual acrobatic ability in action scenes rather than relying on effects like wire work. She also brought up the nature of the series' robot, which has what initially appears to be a lack of unifying theme in its components: a humanoid robot, a dragon, a dump truck, a dog, and a train. She said that the Super Sentai series had long been keeping with these motifs in the robots, but the series' special effects director Hiroshi Butsuda had grown bored of these themes and felt the show would benefit from picking major themes from the franchise's past. Takebe also said that she hoped that the multiple components of the robot would be in line with the tenets of Cool Japan: the humanoid robot represents budō, the dog emphasizes "kawaii", the truck and train represent Japanese technology while the dragon, which is a European dragon, shows the influence on Japanese culture from abroad.^[7][8][9]

The Ninningers made their debut appearance in a scene from Ressha Sentai ToQger vs. Kyoryuger: The Movie.

Shuriken Sentai Ninninger: Aka Ninger vs. Star Ninger Hundred Nin Battle! (手裏剣戦隊ニンニンジャー アカニンジャーVSスターニンジャー 百忍バトル!, Shuriken Sentai Ninninjā Aka Ninjā Tai Sutā Ninjā Hyaku Nin Batoru!) is a special DVD by Kodansha. Takaharu gets into an argument with Kinji over which of them has the better fashion sense before they come across Kamaitachi, Tsuchigumo, and Kappa with an army of Jukkarage, Dorodoro, and Magareppa that have all been revived from the magic of Hyakki Yagyō in daytime due to Kibaoni's influence. The two ninja proceed to transform to fight the Yokai, having a contest to see who can kill the most hellbound Yokai and their leader Gashadokuro. But the fight ultimately ends in a tie. The events of the specials take place between Shinobi 10 and 11.

Shuriken Sentai Ninninger Returns: Ninnin Girls vs. Boys Final Wars (帰ってきた手裏剣戦隊ニンニンジャー ニンニンガールズVSボーイズ FINAL WARS, Kaettekita Shuriken Sentai Ninninjā Ninnin Gāruzu Tai Bōizu Fainaru Wōzu) is a direct-to-video film that was released on June 22, 2016. In the film's storyline, Fuka and Kasumi form a group called the Ninnin Girls and challenge their male teammates to a showdown. At the same time, Ariake no Kata, Mangetsu Kibaoni, and Juza Yumihari have revived and intend to take revenge on the ninjas. The events of the movie take place after the final episode of the series.

• Takaharu Igasaki (伊賀崎 天晴, Igasaki Takaharu): Shunsuke Nishikawa (西川 俊介, Nishikawa Shunsuke)
• Yakumo "Cloud" Kato (加藤 クラウド 八雲, Katō Kuraudo Yakumo): Gaku Matsumoto (松本 岳, Matsumoto Gaku)
• Nagi Matsuo (松尾 凪, Matsuo Nagi): Kaito Nakamura (中村 嘉惟人, Nakamura Kaito)
• Fuka Igasaki (伊賀崎 風花, Igasaki Fūka): Yuuka Yano (矢野 優花, Yano Yūka)
• Kasumi Momochi (百地 霞, Momochi Kasumi): Kasumi Yamaya (山谷 花純, Yamaya Kasumi)
• Kinji Takigawa (キンジ・タキガワ): Hideya Tawada (多和田 秀弥, Tawada Hideya)
• Tsumuji Igasaki (伊賀崎 旋風, Igasaki Tsumuji): Toshihiro Yashiba (矢柴 俊博, Yashiba Toshihiro)
• Yoshitaka Igasaki (伊賀崎 好天, Igasaki Yoshitaka): Takashi Sasano (笹野 高史, Sasano Takashi)
• Shishioh (獅子王, Shishiō), Lion Haoh (ライオンハオー, Raion Haō, Voice): Yukio Yamagata (山形 ユキオ, Yamagata Yukio)
• Gengetsu Kibaoni (牙鬼 幻月, Kibaoni Gengetsu, Voice): Mugihito (麦人)^[14]
• Raizo Gabi (蛾眉 雷蔵, Gabi Raizō, Voice): Kenji Matsuda (松田 賢二, Matsuda Kenji)^[14]
• Masakage Tsugomori (晦 正影, Tsugomori Masakage, Voice): Ryūsei Nakao (中尾 隆聖, Nakao Ryūsei)
• Ariake no Kata (有明の方, Voice): Kotono Mitsuishi (三石 琴乃, Mitsuishi Kotono)
• Mangetsu Kibaoni (牙鬼 萬月, Kibaoni Mangetsu, Voice): Ryōtarō Okiayu (置鮎 龍太郎, Okiayu Ryōtarō)
• Kyuemon Izayoi (十六夜 九衛門, Izayoi Kyūemon, Voice): Megumi Han (潘 めぐみ, Han Megumi)^[14]
• Narration, Ninninger Equipment Voice: Tsutomu Tareki (垂木 勉, Tareki Tsutomu)

• Ninninger began airing in South Korea as Power Rangers Ninja Force.
• In the Philippines, the series aired on TV5 from 2018 to 2019 with a Tagalog dub.
• In the Chinese-speaking world, only a Cantonese dub was produced and aired in Hong Kong respectively.
  • In Hong Kong, the series aired with a Cantonese Chinese dub on March 26, 2017 on TVB Jade until February 11, 2018 with all episodes dubbed.

Opening theme

• "Saa Ike! Ninninger!" (さぁ行け! ニンニンジャー!, Saa Ike! Ninninjā!, "Let's Go! Ninninger!")
  • Lyrics: Neko Oikawa (及川 眠子, Oikawa Neko)
  • Composition & Arrangement: Akira Sato (佐藤 晃, Satō Akira)
  • Artist: Yohei Onishi (大西 洋平, Ōnishi Yōhei)

Ending theme

• "Nan ja Mon ja! Ninja Matsuri!" (なんじゃモンじゃ! ニンジャ祭り!, "What's That?! A Ninja Festival!")
  • Lyrics & Composition: Motoi Okuda (奥田 もとい, Okuda Motoi)
  • Arrangement: Funta 7
  • Artist: Daiki Ise (伊勢 大貴, Ise Daiki)