|This article is about a/an episode in Kikai Sentai Zenkaiger.|
No. 1-kai! The World of Kikai is Kikikaikai! (キカイ世界はキキカイカイ！ Kikai Sekai wa Kikikaikai!) is the first episode of Kikai Sentai Zenkaiger. It features the debut of the Ninninger and Zyuohger Sentai Gears; Magine make brief appearances in this episode and Gaon makes a small non-speaking cameo.
Welcome to a world with an infinite number of parallel worlds. One day, such a myriad of complex and intricate worlds starts to fall into the clutches of an evil dynasty known as Tojitendo. The only world that remains is the one where our protagonist, Kaito Goshikida, lives. For some strange reason, the world where Kaito lives and the Kikai World where the Tojitendo are from have been merged together. However, it isn't long before the inhabitants of Kikaitopia, the Kikainoids, and the humans who live there, start to get along in harmony. It isn't long before the nefarious hands of Tojitendo reaches them. Their peaceful days are soon about to come to an end, just when one of these humans seeks to fight to defend the lives of both humans and Kikainoids alike. Kaito's first ally just so happens to be the cool-looking red old man that is Kikainoid Juran.
It was sudden. Including the world where Super Sentai is active, the innumerable "parallel worlds" that exist in this world disappear one after another. The evil dynasty Tojitendo, who controls the world of mechanical life form Kikainoid "Kikaitopia", conquered all parallel worlds in the mechanical gear Tojirgear. However, for some reason, only this last remaining world could not be confined and merged with a part of the territory of Kikaitopia. Then one month later, Kikaitopia has disappeared from the world, but the remaining Kikainoids and humans have gradually come to terms with each other. However, Tojitendo, who gave up the seal of this world, started invading. Kudakk, a Kikainoid soldier led by executive Barashitara, begins to attack humans.
A young man, Kaito Goshikida, who wants to achieve "the world's first" because of anything, decides to fight Tojitendo. Then, the door to the secret lab that was sleeping in the basement of the candy cafe "Colorful" run by his grandmother, Yatsude Goshikida, opens. His parents, who were researchers, left behind items to fight as Kikai Sentai Zenkaiger.
During the first battle, Kaito meets Juran, a humanoid who helped a child who was late to escape. Kaito, who feels that Juran is a kikanoid with a heart of justice, asks him to fight Tojitendo together. Kaito and Juran are then encountered by Barashitara, Kudaiter and an army of Kudakks. After receiving a second Geartlinger, Juran proceeds to one-shot a kudakk before Kaito tells him how to use a Geartlinger properly. Both Kaito and Juran transform into Zenkaizer and Zenkai Juran respectively. Using the hero side of the Sentai Gear to wipe out Kudakks with the powers of Zyuohger and Ninninger, Zenkaizer faces against Kudaiter, and Juran, who has become huge, faces against Kudaitest, as Juran Tyranno. After defeating both Kudaiter and Kudaitest respectively, Kaito was happy to have achieved the world's first thing, but this time a huge mushroom appeared in the town with people and kikainoids having mushrooms on their heads, leaving the trio shocked.
- Kaito Goshikida (五色田 介人 Goshikida Kaito): Kiita Komagine (駒木根葵汰 Komagine Kiita)
- Juran (ジュラン Juran, Voice): Shintarō Asanuma (浅沼 晋太郎 Asanuma Shintarō)
- Gaon (ガオーン Gaōn, Voice): Yuki Kaji (梶 裕貴 Kaji Yūki)
- Magine (マジーヌ Majīnu, Voice): Yume Miyamoto (宮本侑芽 Miyamoto Yume)
- Vroon (ブルーン Burūn, Voice): Takuya Sato (佐藤 拓也 Satō Takuya)
- Yatsude Goshikida (五色田 ヤツデ Goshikida Yatsude): Ikue Sakakibara (榊原 郁恵 Sakakibara Ikue)
- Isao Goshikida (五色田 功 Goshikida Isao): Daijiro Kawaoka (川岡 大次郎 Kawaoka Daijirō)
- Mitsuko Goshikida (五色田 美都子 Goshikida Mitsuko): Marie Kai (甲斐 まり恵 Kai Marie)
- Secchan (セッチャン Setchan, Voice): Misato Fukuen (福圓美里 Fukuen Misato)
- Great King Boccowaus (大王ボッコワウス Daiō Bokkowausu, Voice): Joji Nakata (中田譲治 Nakata Jōji)
- Mobile Commander Barashitara (行動隊長バラシタラ Kōdō Taichō Barashitara, Voice): Kenji Nomura (乃村 健次 Nomura Kenji)
- Mechanic Officer Ijirude (技官イジルデ Kikan Ijirude, Voice): Masanori Takeda (竹田雅則 Takeda Masanori)
- Gege (ゲゲ Gege, Voice): Tatsuhisa Suzuki (鈴木達央 Suzuki Tatsuhisa)
- Narrator: Tenetsu Saijō (最上典悦 Saijō Tenetsu)
- Kudaiter (クダイター Kudaitā, Voice): Hideo Ishikawa (石川 英郎 Ishikawa Hideo)
- Kaito Goshikida (Child): Yumeki Uenoyama (上野山夢輝 Uenoyama Yumeki)
- Guard: Naoya Wakasono (若園尚哉 Wakasono Naoya), Atsushi Nakamura (中村敦 Nakamura Atsushi)
- Reporter: Yukako Tachikawa (立川ユカ子 Tachikawa Yukako)
- MC: Tsugihide Akahori (赤堀二英 Akahori Tsugihide)
- Party Man: Jotaro Matsumoto (松本城太郎 Matsumoto Jōtarō)
- Boy: Ikuma Kobayashi (小林郁大 Kobayashi Ikuma)
- Kid Kikainoids: Jun Machida (町田絢 Machida Jun), Ryunosuke Kuroiwa (黒岩竜乃介 Kuroiwa Ryūnosuke)
- Zenkaizer: Masashi Takada (高田 将司 Takada Masashi)
- Juran, Zenkai Juran: Yasuhiro Takeuchi (竹内 康博 Takeuchi Yasuhiro)
- Gaon: Masato Tsutamune (蔦宗 正人 Tsutamune Masato)
- Magine: Ayumi Shimozono (下園 愛弓 Shimozono Ayumi)
- Vroon: Kazuya Okada (岡田 和也 Okada Kazuya)
- Mobile Commander Barashitara: Riichi Seike (清家 利一 Seike Riichi)
- Mechanic Officer Ijirude: Hiroyuki Muraoka (村岡 弘之 Muraoka Hiroyuki)
- Kudaiter, Kudaitest: Naoya Iguchi (井口 尚哉 Iguchi Naoya)
Form Changes and Collectibles Used
- Zenkaizer - Zyuohger, Zenkaizer (Zenkai Finish Buster)
- Zenkai Juran - Ninninger, Zenkai Juran (Kikai Side)
Elements/Homages to Super Sentai
- The scene where Kaito's Kikaitakoyaki meal is ruined by Tojitendo's invasion is a homage to the first episode of Kaizoku Sentai Gokaiger, where the Gokaigers' lunch at Snack Safari was ruined by the Zangyack's attack.
- The usage of Zyuohger and Ninninger refer to both previous Sentai being the most recent to celebrate the anniversary of the franchise.
- Humans and Kikainoids panicking at their first contact with each other pays homage to the reaction of humans and Zyumans under the unison Zyuland in the final episode of Doubutsu Sentai Zyuohger.
- Zenkaizer using the Instinct Awakened powers of Zyuoh Eagle is referred to the fact that they are both leaders and the only human member of their own core teams.
- Before unleashing his Ninninger based attack, Juran says Takaharu's catchphrase, "I'm on fire~!" (
燃えてきた～！ Moete kitā!). This is a homage of Sambaba from Doubutsu Sentai Zyuohger, another character portrayed by Juran's voice actor,his war cry while performing his fire attack.
- In the opening sequence, when Magine and Vroon are shown, the numbers that flash with their appearance are in the incorrect order with Magine having a 30 and Vroon having a 29. That error was fixed in the next episode.
- As part of Super Hero Time, this episode aired alongside Kamen Rider Saber episode 25, Chapter 25: Clad in Smoke, the Crimson Assassin.
- This is the first series to start off with only two rangers, though the other three rangers are seen in their civilian forms.
- Archived footage of Gorenger, Zyuranger, and Kiramager appear in the beginning of the episode, just before being completed with the new footage of both Akarenger and TyrannoRanger being shot in the original 4:3 aspect ratio those shows were shot in.
- This is the only episode where a Kikainoid Zenkaiger fights a giant enemy simply by fighting as an enlarged opponent. This also the only episode where a Kikainoid Zenkaiger uses a non-personal Sentai gear directly. This distinction would not occur until a few episodes later.
- JuranTyrano propelling himself with fire breath is a reference to Godzilla doing a similar technique in Godzilla vs. Hedorah.
- TV Asahi's official preview for キカイ世界はキキカイカイ！
- Toei TV's official episode guide for キカイ世界はキキカイカイ！
- JAE's official episode guide キカイ世界はキキカイカイ！