No. 4-kai! It's Huge and Noisy!

This article is about an episode in Kikai Sentai Zenkaiger

No. 4-kai! It's Huge and Noisy!
Kikai Sentai Zenkaiger, Episode 4
Air Date(s)	March 28, 2021
Production Information
Written by	Junko Kōmura
Directed by	Ryuta Tasaki
Episode Guide
Previous	No. 3-kai! A Serious Witch!
Next	No. 5-kai! A Sushi Tournament!

No. 4-kai! It's Huge and Noisy! (ブルブルでっかいおせっかい！, Buruburu Dekkai Osekkai!) is the fourth episode of Kikai Sentai Zenkaiger. It features the full debut of Vroon as Zenkai Vroon and thus uniting all five Zenkaigers as well as the debut of ZenkaiOh VrooMagine and the only appearance of ZenkaiOh VrooGaon. It also features the full debut of the Dairanger Sentai Gear after its first appearance in the Kikai Sentai Zenkaiger Spin-Off: Zenkai Red Great Introduction.

It is accompanied by the fourth episode of Kikai Sentai Zenkaiger: Secret Zenkai File web series.

Synopsis

Vroon, the cleaner of Tojitendo, asks executive Izirude a question, but was chased out by the frustration of being confronted with knowledge Izirude already knew. Instead of seeking an answer to his own question, Vroon decides to leave Tojitendo himself. Meanwhile, there are strange gongs that start showing up all over the city as people start to box each other maniacally. Vroon appears in the city being chased by a couple of Kudakks, and joins up with the Zenkaigers as they take on Boxing World. This engine of curiosity begins to make his decisions with "knowledge that expands the world".

Plot

Following the defeat of the last Tojitendo Kikainoid, Ice World, Vroon alerts Izirude that universes are being released from the defeated gears and wants to know why. Izirude confirms that Vroon is the only one to know this, before saying that that means he's the only one who needs to eliminated to stay silent. Vroon falls off the control platform and escapes to the city below.

Meanwhile, the Zenkaigers are following their latest hint regarding their final member - that he will have glasses. One old man who shows up to grab something to eat suddenly begins attacking Yatsude with boxing gloves. The Zenkaigers soon find out that a new monster is using the power of a Boxing World gear to make civilians across town spar with each other, creating chaos. As they are about to transform, Vroon and a couple Kudakks run by, interrupting them. His natural curiosity gets the better of him and he asks them multiple questions about being Zenkaigers before the group is forced to flee. Izirude gives Boxing World orders to eliminate Vroon, and in response Boxing World distributes flyers announcing that the human who manages to defeat Vroon through his boxing curse will be crowned "champion."

The group's efforts to find a place to hide form the human boxers and question Vroon are hampered by his natural curiosity about everything he sees - first on the street, then in the library. While Kaito freely answers his questions and Magine shares in his curiosity, Juran and Gaon eventually discover that the only way to get Vroon to focus is to remove his glasses so he can't ask about what he sees. Once done, Vroon explains that because of his natural curiosity about everything, he joined Tojitendo as a janitor in hopes of learning from "Professor" Izirude, which he never did. He further explains that gear technology was developed as a method of capturing parallel worlds without bloodshed, and that this Earth would have suffered the same fate. However, due to some unexplained glitch, an attempt to use the gear instead fused this world with the Kikainoid homeworld. When Vroon reveals that Mushroom World and Ice World were freed, the Zenkaigers realize that destroying the gears containing the worlds frees them.

Izirude and Boxing World manage to corner the group once again, and Izirude resolves to destroy all five of them upon learning that Vroon told them about the freed worlds. Vroon then stands up to Izirude (now neglecting to call him "Professor") and quits, explaining that he learned more from Kaito about this world in one day than Izirude had ever taught him. He swears to protect this world so he can learn even more about it, and declares his name to Izirude (who never bothered to learn it). Kaito gives him the last Zenkai Changer and Transformation gear - #30, based on the Boukengers - and the completed team transforms and fights.

Upon being destroyed, Boxing World's Gear is once again absorbed by a giant, who then turns the entire block into a group of boxing rings. ZenkaiOh JuranGaon is used to fight this new Boxing World, but Boxing World notes that you can't use swords in the ring before attacking it. In response, Vroon turns into VroonDump before fusing with Magine to create Zenkai VroMagine. A second giant Kikainoid is called upon to help fight, but the Zenkaigers succeed in destroying both.

At the house, Juran proposes having a party to celebrate completing the Zenkaiger team. However, Vroon, first asks whether the Sentai gears used by the Zenkaigers contain captured worlds like Tojitendo gears. Secchan explains that they do not, as the gears were simply used to create power sets inspired by those worlds, and Kaito's parents would not dare imprison anyone to do that. Upon hearing their names, however, Vroon remembers that Izirude had two lab assistants with the same names many years ago, shocking the Zenkaigers.

Cast

• 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): Shintaro 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)
• Secchan (セッチャン, Setchan, Voice): Misato Fukuen (福圓 美里, Fukuen Misato)
• Mechanic Officer Izirude (技官イジルデ, Kikan Ijirude, Voice): Masanori Takeda (竹田 雅則, Takeda Masanori)

Guest Cast

• Boxing World (ボクシングワルド, Bokushingu Warudo, Voice): Shunichi Maki (真木 駿一, Maki Shunichi)
• Bride: Julia Nagano (長野 じゅりあ, Nagano Juria)
• Idol: Mika Mano (真野 未華, Mano Mika)
• Mr. Sue (スーさん, Sū-san): Tsutomu Kitagawa (喜多川 務, Kitagawa Tsutomu)

Suit Actors

• Zenkaizer: Masashi Takada (高田 将司, Takada Masashi)
• Juran, Zenkai Juran: Yasuhiro Takeuchi (竹内 康博, Takeuchi Yasuhiro)
• Gaon, Zenkai Gaon: Masato Tsutamune (蔦宗 正人, Tsutamune Masato)
• Magine, Zenkai Magine: Ayumi Shimozono (下園 愛弓, Shimozono Ayumi)
• Vroon, Zenkai Vroon: Kazuya Okada (岡田 和也, Okada Kazuya)
• ZenkaiOh JuraGaon: Yohei Fujita (藤田 洋平, Fujita Yōhei)
• ZenkaiOh VrooMagine: Shinsuke Kusano (草野 伸介, Kusano Shinsuke)
• Mechanic Officer Izirude: Hiroyuki Muraoka (村岡 弘之, Muraoka Hiroyuki)
• Boxing World, Great Boxing World: Kenya Saitou (齊藤 謙也, Saitō Kenya)
• Kudaitests: Naoya Iguchi (井口 尚哉, Iguchi Naoya)

Form Changes and Collectibles Used

Sentai Gears

• Zenkaizer - Dairanger, Zenkaizer (Zenkai Finish Buster), Zenkaizer (Kikai Side)
• Zenkai Juran - Zenkai Juran (Zenkai Finish Buster), Zenkai Juran (Kikai Side)
• Zenkai Gaon - Zenkai Gaon (Zenkai Finish Buster), Zenkai Gaon (Kikai Side)
• Zenkai Magine - Zenkai Magine (Zenkai Finish Buster), Zenkai Magine (Kikai Side)
• Zenkai Vroon - Zenkai Vroon (Zenkai Finish Buster), Zenkai Vroon (Kikai Side)

Dairanger

TenmaRanger running towards Zenkai Vroon

Zenkaiger with Dairen Rods

Elements/Homages to Super Sentai

• Several references of Tokumei Sentai Go-Busters were made in this episode.
  • The brainwashing through boxing gloves is a reference of Karateloid manipulating Kenta Sawai through his karate fist guards in Mission 39: Finishing Blow! Messiah's Fist.
  • The bride and groom fighting each other is a reference of the side effect for extracting data of love by Tiaraloid in Mission 37: The Black and White Brides.
  • People standing aside with Tojitendo is a reference to people guarding the Deltanium 39 cargo in Mission 10: A Reason to Fight.
  • The Zenkaigers traveling while helping Vroon run away is a reference of Yoko Usami and Shelly's touring as well as characters wandering in Makuu Dimension in Mission 31: Space Sheriff Gavan Arrives!.
  • The battle with Great Boxing World is a homage of the MegaZord Death Match in Mission 38: Live! Ace Deathmatch.
• The scene where the Zenkaigers pick up Vroon while chanting "Let's run away" is a reference to Hikonin Sentai Akibaranger Season Tsuu's Ep. 3: Martial Arts Delusion, where the Akibarangers flee from Kibaranger with "China Red" while chanting "Hurry, let's run".

Errors

• Like the previous episode, the camera cuts to Juran and Gaon growing before Gaon re-inserts his Gear properly.
  • The same thing also happens with Vroon when he joins the fight.

Notes

• Viewership: 2.9%
• As part of Super Hero Time, this episode aired alongside Kamen Rider Saber episode 28, Chapter 28: Writing the Past, Drawing the Future.
• Great Boxing World's last words is a homage to the narration of the very last scene of Ashita no Joe, a manga about boxing.
• As Vroon is intrigued by the balloon animals, it is shown that there are balloon creations of the the mecha forms of the Kikainoid Zenkaigers,
• Vroon squints using CGI when not wearing his glasses.

DVD/Blu-ray Releases

• Kikai Sentai Zenkaiger DVD Volume 1 features episodes 1-4: No. 1-kai! The World of Kikai is Kikikaikai!, No. 2-kai! The Gao Beast is Troublesome!, No. 3-kai! A Serious Witch!, and No. 4-kai! It's Huge and Noisy!.
• Kikai Sentai Zenkaiger Blu-ray Collection 1 features episodes 1-12.

Zenkaiger DVD Volume 1 cover

Zenkaiger Blu-ray Collection Volume 1 cover

External links

• TV Asahi's official preview for ブルブルでっかいおせっかい！
• Toei TV's official episode guide for ブルブルでっかいおせっかい！
• JAE's official episode guide for ブルブルでっかいおせっかい！