The BEST episodes directed by Takao Nagaishi

#1 - The True Culprit's Super Trick

Kamen Rider - Season 19 - Episode 7

After defeating Knight, Decade is about to finish him off when Ryuki pleads with him not to deliver the final blow, as he feels Knight must answer for his crime by his hand. However, Abyss uses this time to make his move to take out all three Riders at once, forcing them to retreat with Ren refusing to answer Shinji as he leaves. After her brief encounter with Narutaki, Natsumi learns that Shinji and Tsukasa are convinced that Ren is Reiko's murderer, although Yusuke sees otherwise. Meanwhile, a wounded Ren battles Kamen Rider Odin and defeats him, emerging from Mirror World with Odin's Time Vent as Shinji and Yusuke find him. Learning that Ren obtained the card to save Reiko, Shinji uses the card to go back in time as Tsukasa holds Abyss off. Arriving seconds before Reiko's death, Shinji and Tsukasa manage to save Reiko with the latter cornering her true murderer, Kamata. Despite this, Kamata arrives and absorbs his past self before becoming Abyss and unleashing his monsters on Decade. After learning the truth behind Ren coming to the Atashi Journal and why he left, a relieved Shinji runs to Tsukasa's aid. Though the two manage to defeat Abyss together, they learn from Narutaki that Kamata is actually an Undead as the two depart. After he receives Shinji's photo of himself and Yusuke, Tsukasa and company enter the World of Blade.[7]

#2 - Blue Dragon

Kamen Rider - Season 10 - Episode 6

Yusuke tries to decipher the meaning behind his new "blue" form, while Sakurako's continued research makes new discoveries regarding his secrets and how to use them.

#3 - Reunion: Project Agito

Kamen Rider - Season 19 - Episode 12

Upon arriving in the World of Agito, Yusuke is shocked that there are Grongi in the world which are being dealt with by Kamen Rider G3-X. He is further shocked when he sees an interview with Toko Yashiro, who is physically identical to the Ai Yashiro that died back in the World of Kuuga. Arriving at the police station, Yusuke offers to be the new user of the G3-X suit, but loses the position to Kaito. While this occurs, finding himself in a mailman outfit with a letter to Shouichi Ashikawa, Tsukasa and Natsumi find the man before they are attacked by what they think to be a Grongi. But during the fight, Tsukasa realizes he is fighting an Unknown, an Ant Lord called Formica Pedes. After destroying the Ant Lord, Shouichi refuses the letter before he and Tsukasa dodge an attack meant for him by a mysterious Unknown. Later that night, as Tsukasa reads the letter's contents, Yusuke leaves the Hikari Studio to remain in the World of Agito with Toko. The next day, Kaito is deployed as G3-X to take out the Grongi with Yusuke supporting him. During the fight, Kaito takes off the armor to finish the Grongi off as Diend, revealing that he only became G3-X for his own agenda. Though he destroys Me-Ginoga-De, Zu-Mebio-Da attempts to run off only to destroyed by a couple of Formica Pedes. While this occurs, Tsukasa finds Shouichi and offers protection, only to see him transform into Exceed Gills. Tsukasa attempts to restrain him as Kiva in Garulu Form. Gills, in pain of sensing the Ant Lords' attack, runs off and destroys them both before Yusuke's eyes. When Diend targets Gills, Decade tries to protect him, only to have his belt stolen by Gills with no defense against Diend's summoned Delta's Lucifer's Hammer finisher.[12]

#4 - Battle Trial: Ryuki World

Kamen Rider - Season 19 - Episode 6

Upon arriving in the World of Ryuki, Natsumi goes to the Atashi Journal headquarters to learn about the world's Kamen Riders from its editor, Reiko Momoi. After Natsumi's arrival at the journal's offices, Reiko is mysteriously murdered, leaving Natsumi as the culprit as she had a small fork in her hand. Natsumi is arrested under suspicion of murder, and is to be sentenced with a Kamen Rider Trial: a system where Kamen Riders fight in the Mirror World to determine the outcome of criminal cases. Natsumi calls upon Tsukasa to be her lawyer, who meets with Shinji Tatsumi to hear what he knows of what happened to Reiko. As Shinji reveals that he is Kamen Rider Ryuki and he believes Natsumi was framed, his former friend Kamen Rider Knight is fighting in the Kamen Rider Trial, defeating several opponents. Shinji suggests to Tsukasa that he should fight as Decade in the Kamen Rider Trial to clear Natsumi's name. At the scene, he finds that Ren Haguro was also at the scene of the crime before he is brought into the Mirror World along with the sub-editor of the Atashi Journal: Kamata. Decade and Abyss' fight, however, is interrupted by Kamen Rider Imperer, and Abyss leaves to watch Decade's abilities. Elsewhere, Shinji confronts Ren, believing he is Reiko's real murderer, and he challenges him as Kamen Rider Ryuki. Their fight is also interrupted by Decade, having just defeated Imperer and now turning his sights on Knight, easily overwhelming him in Kiva's various forms with Shinji watching.[6]

#5 - The Mysterious Rider

Kamen Rider - Season 12 - Episode 6

#6 - Awaken, The Soul Tornado

Kamen Rider - Season 19 - Episode 13

After Yusuke saves Tsukasa from Delta's attack, Gills is about to fight when he's overcome with pain as the Unknown shows up to kill him. As Shouichi escapes, Toko recognizes him via G3-X's camera. While Tsukasa insists on protecting an annoyed Shouichi, Yusuke reports the defeat of the Grongi and the emergence of the Unknown. He finds Toko saddened, but has little time to help her as Kaito takes the G4 chip stored within his locker. Yusuke demands the chip back, but during the struggle, Toko blasts the chip to bits and a disappointed Kaito leaves. The next day, as Tsukasa continues to keep Shouichi safe from the Unknowns' attack, Yusuke learns that Shoichi was the original user of the G3 suit when he receives the letter for Shouichi from Toko. As Gills fights the Buffalo Lord Taurus Ballista, Yusuke arrives in the G3-X suit to make Shouichi realize that Toko knew the truth and it was the reason for creating the G3-X suit. Diend arrives to selfishly aid them with Blade's power until Ballista arrives. But Tsukasa shows up to state the Buffalo Lord's idealogical flaws as Shouichi awakens as Agito. As Diend takes his leave, Decade, Agito, and G3-X battle Ballista and Formica Regia before the latter is destroyed by Agito. After turning Agito into the Agito Tornador, Decade and G3-X ride on the hoverboard to finish the Lord off. Soon after, Yusuke gives Toko his thanks as he says goodbye to her, and Shouichi returns to resume his place by Toko's side as Agito. As Kiva-la is happy to see Yusuke returning to the Studio, the gang ends up in another world: the World of Den-O.[13]

#7 - My Strength Has Made You Cry

Kamen Rider - Season 17 - Episode 9

Ryotaro and Hana pursue two Imagin attacking martial artists, one to eliminate rivals while another only seems to try and prove its own strength against other opponents.

#8 - Hana and the Stormy Singular Point

Kamen Rider - Season 17 - Episode 10

Ryotaro tries to discover the truth regarding the karate champion possessed by the Rhino Imagin, while Hana tries to make sense of the Bear Imagin and what he really desires.

#9 - Outlaw Momotaro

Kamen Rider - Season 17 - Episode 3

Momotaros decides to use Ryotaro’s body without his permission, leading to him to become the bodyguard of a minor criminal in need of cash.

#10 - Distance

Kamen Rider - Season 10 - Episode 5

Yusuke discovers the effect of the mysterious belt on himself and his connections to those he cares about as the battle with a grasshopper Unidentified Lifeform brings about a new change.

#11 - The Monster's Antique Store

Kamen Rider - Season 12 - Episode 5

#12 - Get Out, Demon! I'm Serious.

Kamen Rider - Season 17 - Episode 4

Ryotaro, furious that Momotaros had involved him in a robbery, decides to stop asking for the Imagin’s help in battles. Later, the Chameleon Imagin shows up at Yamagoshi’s apartment, leaving the young man large amounts of money and completes the contract with Yamagoshi, allowing him to travel back in time…

#13 - The Black Shadow of the Misty Valley

Super Sentai - Season 11 - Episode 21

With Great Five buried underground, Sugata decides to investigate a rival mecha that has gained infamy for killing its creator.

#14 - Fiery Ahames!

Super Sentai - Season 9 - Episode 53

Ahames is sacrificed into becoming a Space Beast sent to finally track down and destroy the Dengeki Squadron's base.

#15 - The Grotto of the Young Monster

Super Sentai - Season 11 - Episode 24

The Maskman are summoned to Inasa where a boy is mutated into a monster by a Doggler as a city friend comes to visit.

#16 - Thief Knight Kiros!

Super Sentai - Season 11 - Episode 27

Thief Knight Kiros, a lone wolf of the underground, takes on the Maskman in hopes of defeating them and winning Princess Ial for himself.

#17 - Sing! With a Great Voice

Super Sentai - Season 9 - Episode 25

Yuma faces his own tone-deaf nature with a similar boy as they confront a music-stealing Space Beast.

#18 - The Doctor Who Travels Through Time

Super Sentai - Season 10 - Episode 9

As the Flashman try to help Dr. Tokimura complete his time machine, Ley Nefel tries to manipulate the situation to gain it's energy source so nothing can stop The Jigen.

#19 - It Appears! The Guardian Deity Igam Dragon

Super Sentai - Season 11 - Episode 31

Igam attempts to gain the assistance of his family's guardian to increase his power, while Haruka has a crisis in the sudden loss of her own abilities.

#20 - The Mystery of Zeba! The Forbidden Tomb

Super Sentai - Season 11 - Episode 35

Kiros opens a sealed tomb revealing a powerful Doggler that may be associated with Zeba's greatest secret.

#21 - The Giant Robo is Worn Out

Super Sentai - Season 10 - Episode 15

Alien Hunter leader Sir Cowler comes to Earth to assist Mess in dealing with the Flashman, forcing the team against a corner to the unthinkable...

#22 - Female Thieves Haruka & Momoko

Super Sentai - Season 11 - Episode 41

Kiros uses a Doggler to transform Haruka and Momoko into evil female thieves stealing wealth to give to Ial.

#23 - The Night Prior to the Attack! Dance of Death

Super Sentai - Season 11 - Episode 47

A dance student of Haruka is abducted to take part in Tube's ceremony to summon victory in their final war on the surface.

#24 - Reckless Rider Mai

Super Sentai - Season 9 - Episode 15

Mai races against a biker who knows the secret for stopping a poison-making Space Beast.

#25 - The Sailor-Suited Nana

Super Sentai - Season 9 - Episode 42

Nana's attempt to live a normal life on Earth is once again intruded by Giluke and Ahames' rival plans for her.

#26 - Strange! The Dark Underground Castle

Super Sentai - Season 11 - Episode 2

Takeru abandons Commander Sugata's Aura Power training when he receives a message from Mio about her survival and current whereabouts as Tube prepares to punish her.

#27 - Friends! Why Did You Do This!?

Super Sentai - Season 12 - Episode 1

Their friends who sold their souls to the science of evil attack the Earth. Stand up, Livemen! They are the warriors that protect all living beings.

#28 - A Trap! The Sinking Giant Robot

Super Sentai - Season 11 - Episode 20

Momoko's pride as a kenpo teacher is tested by a powerful opponent set up by Anagmas as part of a scheme to defeat Maskman and Great Five.

#29 - Booba Dies on Earth

Super Sentai - Season 9 - Episode 52

With Gator's defection, Shiima's allegiance to the Gozma becomes shaken, moreso knowing that she will be used as a sacrificial lamb in their latest plan.

#30 - The Winds and Clouds of an Aura Storm!

Super Sentai - Season 11 - Episode 22

With Galaxy Robo in their hands, the Maskman head forth to save Great Five, unknowing of the difficulties of doing so and an unknown key to fully activate their new mecha.

#31 - The Soldier Who Disappeared into a Mirror

Super Sentai - Season 9 - Episode 22

A Space Beast traps Sayaka in a mirror and steals her identity in order to find the Earth Defense Force's base.

#32 - A Life That Disappeared on the Hot Sand!

Super Sentai - Season 11 - Episode 26

Kenta encounters a sorrowful girl who is actually a creature working to empower a Doggler while trying to preserve her own short life.

#33 - Father!! Mother!! Little Sisters!

Super Sentai - Season 10 - Episode 8

A Mess plot to trap the Flashman in another dimension is disrupted by an eccentric scientist trying to travel back 20 years to discover the identity of his abducted child!

#34 - Mama!! Baraba's Scream!

Super Sentai - Season 11 - Episode 30

Akira decides to help Baraba's mother reach her son when he decides to partake in a trial to gain the legendary sword of the underground.

#35 - Attack! Giant Lizards

Super Sentai - Season 9 - Episode 14

After Nana runs away confused by her new surroundings, Hiryuu tries to protect her from Dr. Kumazawa and his Gozma protectors.

#36 - Blues of Love and Murderous Intent

Super Sentai - Season 11 - Episode 34

A Doggler takes a human form in order to pursue love with Momoko, under the condition he destroys the Maskman in three days!

#37 - Love!? Bun and the Female Gangster

Super Sentai - Season 10 - Episode 14

Bun tries to befriend a bad girl as they're targeted by Nefel in a scheme to rip the Flashman apart.

#38 - Resurrect! The Melody of Love

Super Sentai - Season 11 - Episode 40

A famous pianist returning to Japan is suddenly targeted by Tube due to a unknown connection with them and her mysterious benefactor.

#39 - Mai's 20-Year-Old First Love

Super Sentai - Season 9 - Episode 26

Mai falls for an EDF doctor who may be the only hope for curing a space plague on another world.

#40 - Fly! The Poem of a Timid Boy

Super Sentai - Season 11 - Episode 42

A cowardly boy gains super-strength to defend himself after eating a cave mushroom Baraba wished to harvest for himself.

#41 - The Mysterious, Beautiful Runaway

Super Sentai - Season 11 - Episode 1

Five youths begin their battle against the underground forces of Tube as Maskman after they begin a war with the surface with the abduction of the mysterious Mio.

#42 - Baraba! Death for Treason

Super Sentai - Season 11 - Episode 48

With no more chances left in Tube, Baraba joins with Kiros to abduct the frozen Ial in a final chance to defeat Takeru.

#43 - Shine! The Special Miracle Ball

Super Sentai - Season 9 - Episode 9

A boy who reminds Hiryuu of his baseball days inspires him to bring back his special pitch against a highly-defensive Space Beast.

#44 - Three Powers Sworn to Life

Super Sentai - Season 12 - Episode 2

With Academia destroyed, the Liveman gain from their dying mentor Doctor Hoshi instructions and a clue to assist in their battle against Volt.

#45 - The First Step into the Unknown

Super Sentai - Season 11 - Episode 3

As Emperor Zeba plunges the world into eternal darkness, the Maskman must complete their Aura Power training, even as Prince Igam decides to face Takeru for the shame Mio has brought him.

#46 - Obular Demonic Transformation

Super Sentai - Season 12 - Episode 3

Joh shows doubt in facing down his old friend Gou as he prepares to use a virus to evolve into the ultimate being.

#47 - The God Hand of Dreams

Super Sentai - Season 11 - Episode 6

While investigating a series of unusual earthquakes in Otaki, Takeru meets a boy who believes he possesses a legendary martial arts move.

#48 - The Duel of Love and Anger!

Super Sentai - Season 12 - Episode 8

The Liveman trio must learn to draw on other emotions to fight after Dr. Kemp creates a Brain Beast that sucks away anger for power.

#49 - Explode! Kenta's Love

Super Sentai - Season 11 - Episode 7

Kenta encounters a girl who likes him, inspiring Baraba to use a Doggler to sabotage his new love.

#50 - The Girl Who Had Wings!

Super Sentai - Season 9 - Episode 16

Shou falls for a girl with mysterious powers tied to a lost angelic alien civilization.