Kaiju No. 8 backdrop
Animation•Action & Adventure•Sci-Fi & Fantasy

The Worst Episodes of Kaiju No. 8

Every episode of Kaiju No. 8 ranked from worst to best. Explore the Worst Episodes of Kaiju No. 8!

Binge this in 9h 12m•Peaking at 9.4/10

In a world plagued by creatures known as Kaiju, Kafka Hibino aspired to enlist in The Defense Force. He makes a promise to enlist with his childhood friend, Mina Ashiro. Soon, life takes them in

Airs on
TV TokyoTV AichiTVQTV Osaka
BestEpisodes
WorstEpisodes
BestSeasons
AllEpisodes

Seasons1

All1

Episode Rankings

  1. #1 Worst Episode
    Click to reveal
    Kaiju No. 8 Season 1 Episode 19 - Wall
    7.1/10(14 votes)

    S1:E19

    Chosen to wield the formidable Numbers Weapon 6, Reno enters his first real battle with the dangerous new equipment. As his abilities continue to grow at an astonishing pace, Iharu struggles with frustration and self-doubt while trying to keep up with the teammate who once stood beside him as an equal.

    Director:Chen Xiaocan
    Writer:Yuichiro Kido

    Be the first to start the conversation for this episode

  2. Kaiju No. 8 Season 1 Episode 20 - Destiny
    7.1/10(12 votes)

    S1:E20

    As Reno struggles to control the immense power of Numbers Weapon 6, Iharu refuses to let him face the danger alone. Their battle pushes both recruits to their limits, forcing Iharu to confront his own potential while the bond between them becomes their greatest weapon.

    Director:Masateru Nomi
    Writer:Yuichiro Kido

    Be the first to start the conversation for this episode

  3. Kaiju No. 8 Season 1 Episode 21 - Omen
    7.2/10(13 votes)

    S1:E21

    Determined to fight without relying entirely on Kaiju No. 8, Kafka begins intensive close-quarters training under Hoshina. As he reconnects with his scattered comrades, the Defense Force grows increasingly concerned by a series of unexplained kaiju incidents appearing across Japan.

    Directors:Ryo Kodama, Haruka Yoshinaga
    Writer:Yuichiro Kido

    Be the first to start the conversation for this episode

  4. Kaiju No. 8 Season 1 Episode 13 - Kaiju Weapon
    7.5/10(14 votes)

    S1:E13

    Kafka goes on a mission with his new squad and faces Kaiju No. 9 once again.

    Director:Mineo Oe
    Writer:Yuichiro Kido

    Be the first to start the conversation for this episode

  5. Kaiju No. 8 Season 1 Episode 14 - The Next Generation's Trial
    7.5/10(12 votes)

    S1:E14

    A massive sinkhole opens in Shinagawa, unleashing a swarm of giant ant kaiju and sending the First Division into action. As Kikoru works to prove herself under Narumi’s command, Kafka joins the battle under close supervision, determined to demonstrate that he can still be an asset to the Defense Force.

    Director:Kazuma Satou
    Writer:Yuichiro Kido

    Be the first to start the conversation for this episode

  6. Kaiju No. 8 Season 1 Episode 5 - Joining Up!
    7.6/10(1985 votes)

    S1:E5

    Kafka finally takes his first step into the Defense Force, but his place among its ranks is far from secure. Given only three months to prove his worth, he throws himself into training alongside his new teammates while struggling to keep pace with their rapidly developing abilities.

    Director:Koji Komurakata
    Writer:Ichiro Okouchi

    Be the first to start the conversation for this episode

    7. Trending NowTRENDING NOW

    The 20 BEST Episodes of Kaiju No. 8

    READ
  7. Kaiju No. 8 Season 1 Episode 18 - Compatible User
    7.7/10(15 votes)

    S1:E18

    Kaiju No. 10 awakens in Defense Force custody and makes an unexpected proposal to Hoshina. Meanwhile, the division captains gather to discuss how to confront the growing threat of Kaiju No. 9, leading Hoshina to present a surprising possibility that could reshape their strategy.

    Director:Naoki Matsuura
    Writer:Yuichiro Kido

    Be the first to start the conversation for this episode

  8. Kaiju No. 8 Season 1 Episode 3 - Revenge Match
    7.8/10(2109 votes)

    S1:E3

    Kafka and Reno arrive for the Defense Force selection exam, where they meet the highly confident Kikoru Shinomiya. Determined to revive his abandoned dream while keeping his secret hidden, Kafka struggles through the physical tests before facing a daunting final challenge that puts the candidates’ combat abilities to the test.

    Director:Hitomi Ezoe
    Writer:Ichiro Okouchi

    Be the first to start the conversation for this episode

  9. Kaiju No. 8 Season 1 Episode 15 - The Strongest Division
    7.8/10(14 votes)

    S1:E15

    Kaiju No. 9 divides into two bodies, forcing the First Division into battles on multiple fronts. While Narumi confronts one of the evolving threats, Kafka and Kikoru struggle against the other, and Kafka faces a frightening new problem when he suddenly finds himself unable to transform.

    Director:Haruo Okuno
    Writer:Yuichiro Kido

    Be the first to start the conversation for this episode

  10. Kaiju No. 8 Season 1 Episode 17 - I Want to Be Strong
    7.8/10(13 votes)

    S1:E17

    In the aftermath of the devastating battle with Kaiju No. 9, the Defense Force faces an uncertain future. As Narumi and Kikoru renew their determination to become stronger, Kafka confronts the growing consequences of relying on Kaiju No. 8’s overwhelming power.

    Director:Shinji Nagata
    Writer:Yuichiro Kido

    Be the first to start the conversation for this episode

  11. Kaiju No. 8 Season 1 Episode 22 - Cataclysms
    8.0/10(14 votes)

    S1:E22

    Kaiju suddenly emerge across Tokyo and begin coordinated attacks on critical facilities throughout Japan. As the crisis spreads on an unprecedented scale, the First and Third Divisions mobilize alongside the Defense Force’s strongest fighters and newest recruits to confront a threat unlike anything they have faced before.

    Director:Yuuta Mikami
    Writer:Yuichiro Kido

    Be the first to start the conversation for this episode

  12. Kaiju No. 8 Season 1 Episode 1 - The Man Who Became a Kaiju
    8.1/10(2464 votes)

    S1:E1

    Kafka Hibino has given up his dream of joining the Defense Force and now works cleaning up the remains of defeated kaiju. When ambitious newcomer Reno Ichikawa reminds him of the promise he once made to childhood friend Mina Ashiro, Kafka begins reconsidering the path he abandoned—just as an unexpected encounter changes everything.

    Director:Tomomi Kamiya
    Writer:Ichiro Okouchi

    Be the first to start the conversation for this episode

  13. Kaiju No. 8 Season 1 Episode 2 - The Kaiju Who Defeats Kaiju
    8.1/10(2250 votes)

    S1:E2

    Following the shocking incident at the hospital, Kafka and Reno are forced to flee while trying to understand what has happened. When they encounter civilians threatened by a kaiju, Kafka must decide whether to remain hidden or risk everything to protect them.

    Director:Takayuki Inagaki
    Writer:Ichiro Okouchi

    Be the first to start the conversation for this episode

  14. Kaiju No. 8 Season 1 Episode 6 - Sagamihara Neutralization Operation at Daybreak
    8.1/10(1993 votes)

    S1:E6

    Kafka and the other new recruits embark on their first real Defense Force mission when a kaiju emerges in Sagamihara. Assigned to eliminate smaller monsters behind the front lines, Kafka eagerly embraces the work he has long dreamed of while struggling to prove that he belongs among his rapidly improving teammates.

    Director:Tetsuharu Nakamura
    Writer:Ichiro Okouchi

    Be the first to start the conversation for this episode

  15. Kaiju No. 8 Season 1 Episode 8 - Welcome to the Defense Force
    8.1/10(1952 votes)

    S1:E8

    After revealing his power to save Reno and Iharu, Kafka comes face-to-face with Hoshina, who immediately recognizes him as a dangerous kaiju. Reluctant to fight back against someone he respects, Kafka must find a way to escape without exposing the truth behind his identity.

    Director:Haruo Okuno
    Writer:Ichiro Okouchi

    Be the first to start the conversation for this episode

  16. Kaiju No. 8 Season 1 Episode 16 - The Man Called Isao Shinomiya
    8.3/10(14 votes)

    S1:E16

    As the battle against Kaiju No. 9 reaches a critical stage, Kafka, Kikoru, and Narumi combine their strength to confront the evolving threat. Just when the Defense Force appears to regain control, a sudden development places Director General Isao Shinomiya at the center of an unprecedented crisis.

    Director:Ryo Kodama
    Writer:Yuichiro Kido

    Be the first to start the conversation for this episode

  17. Kaiju No. 8 Season 1 Episode 23 - Second Wave
    8.3/10(14 votes)

    S1:E23

    Just as the Defense Force begins turning the tide against the widespread kaiju attacks, five powerful numbered kaiju appear before its strongest fighters. With the situation rapidly deteriorating, Kafka is forced to decide whether he can continue waiting for Kaiju No. 9 or must enter the battle himself.

    Directors:Ryo Kodama, Jun Soga, Shota Hamada
    Writer:Yuichiro Kido

    Be the first to start the conversation for this episode

  18. Kaiju No. 8 Season 1 Episode 12 - Kafka Hibino
    8.7/10(2079 votes)

    S1:E12

    As the Third Division fights to save Kafka from execution, he is forced into a brutal confrontation with Director General Isao Shinomiya. When the kaiju within him begins to seize control, Kafka must struggle to prove that he can remain human before his fate is decided.

    Director:Katsuya Kikuchi
    Writer:Ichiro Okouchi

    Be the first to start the conversation for this episode

  19. Kaiju No. 8 Season 1 Episode 4 - Fortitude 9.8
    8.8/10(2358 votes)

    S1:E4

    Kikoru’s overwhelming combat ability brings the Defense Force exam to a swift conclusion, leaving the other candidates in awe. Before they can recover, a mysterious kaiju suddenly appears within the testing grounds, throwing the exam into chaos and forcing Kafka to confront a dangerous choice.

    Director:Kazuki Yokoyama
    Writer:Ichiro Okouchi

    Be the first to start the conversation for this episode

  20. Kaiju No. 8 Season 1 Episode 7 - Kaiju No. 9
    8.9/10(2282 votes)

    S1:E7

    Reno and Iharu encounter a mysterious humanoid kaiju whose strength and intelligence far exceed their expectations. Quickly overwhelmed, the two recruits are pushed into a desperate fight for survival while Kafka races to reach them before it is too late.

    Director:Yoshihide Ibata
    Writer:Ichiro Okouchi

    Be the first to start the conversation for this episode

  21. Kaiju No. 8 Season 1 Episode 9 - Raid on Tachikawa Base
    8.9/10(2304 votes)

    S1:E9

    With Mina away, Tachikawa Base is suddenly attacked by a coordinated swarm of flying kaiju led by a powerful new intelligent threat. As the Defense Force scrambles to defend its headquarters, Hoshina takes command and finds himself singled out by an enemy eager to test its strength against the base’s strongest fighter.

    Directors:Ryota Furukawa, Claire Barbou des Courieres, Hirotaka Mori, Koji Komurakata
    Writer:Ichiro Okouchi

    Be the first to start the conversation for this episode

  22. Kaiju No. 8 Season 1 Episode 11 - Kaiju No. 8 Captured
    9.0/10(2289 votes)

    S1:E11

    With his identity exposed, Kafka is taken into Defense Force custody and transferred to headquarters under the orders of Director General Isao Shinomiya. Haunted by the possibility that his dream is over and that he has betrayed his comrades, Kafka faces an uncertain fate while Mina struggles with what comes next.

    Director:Ayataka Tanemura
    Writer:Ichiro Okouchi

    Be the first to start the conversation for this episode

  23. Kaiju No. 8 Season 1 Episode 10 - Secret Revealed
    9.4/10(3142 votes)

    S1:E10

    As the attack on Tachikawa Base intensifies, Hoshina is pushed to his limits against an increasingly powerful enemy. With the Defense Force struggling to contain the threat, Kafka faces an impossible choice between protecting the secret he has fought to preserve and using his hidden power to save his comrades.

    Director:Kenta Kushiya
    Writer:Ichiro Okouchi

    Be the first to start the conversation for this episode

Worst Episodes Summary

"Wall" is the worst rated episode of "Kaiju No. 8". It scored 7.1/10 based on 14 votes. Directed by Chen Xiaocan and written by Yuichiro Kido, it aired on 8/30/2025. This episode scored 0.0 points lower than the second lowest rated, "Destiny".