The BEST episodes written by Keiichi Hasegawa

#1 - Farewell to N/The Memory Kids

Kamen Rider - Season 20 - Episode 17

When Shotaro is hired to find the daughter of his barber, he discovers horrible new developments regarding the Gaia Memories.

#2 - Farewell to N/Friends in the Wind

Kamen Rider - Season 20 - Episode 18

As Shotaro and Philip discover the truth regarding the teens using the Bird Memory, Kirihiko discovers the truth behind Museum and his usage by the Sonozaki family.

#3 - Q on the Radio/Live Broadcast at the Riot

Kamen Rider - Season 20 - Episode 14

As Shotaro continues to try and lure out Wakana’s violent stalker, Philip continues to get unusually close to the radio-broadcasting Sonozaki.

#4 - What is the Secret That They Hide?

Kamen Rider - Season 25 - Episode 8

Shinnosuke is still followed by the reporter, who is unwillingly becoming part of a story himself.

#5 - V For Vendetta/Raging Beast

Kamen Rider - Season 20 - Episode 12

When the search for the Virus Dopant takes an unexpected turn, Shotaro and Philip must work to find the true controller and the reason behind their grudge.

#6 - Winter Night Phantom

The Big O - Season 1 - Episode 10

A mysterious bomber is murdering retired Paradigm officials.

#7 - But I Want to Help People

Kamen Rider - Season 31 - Episode 22

Mei gets a call from the girl that Touma saved and the two discover that her sister is missing.

#8 - Q on the Radio/Princess Under Fire

Kamen Rider - Season 20 - Episode 13

Shotaro and Philip investigate a Dopant stalker causing chaos in order to impress Wakana.

#9 - R-D

The Big O - Season 1 - Episode 13

An assassin stalks the streets of the Paradigm City and the only clue is the killer's calling card, which reads, "Cast in the name of God, ye not guilty."

#10 - Missing Cat

The Big O - Season 1 - Episode 8

An abandoned kitten sparks a confrontation with a mad biologist.

#11 - Bring Back My Ghost

The Big O - Season 1 - Episode 5

Roger is hired by a wealthy and blind old woman to help find her son, Bonny, for her birthday the next day.

#12 - How Was the Key Moment Photographed?

Kamen Rider - Season 25 - Episode 7

Shinnosuke must figure out why he is being dogged by a reporter and discover who is responsible for demolishing several buildings when he cannot find the source of the Heavy Acceleration.

#13 - Metal Warrior! Silver Valvarad

Kamen Rider - Season 34 - Episode 49

#14 - What's Your Reason for Fighting?

SSSS.Dynazenon - Season 1 - Episode 2

Mugwort and Yumeme visit the city where they fought the monsters and witness the tragedy. Homura and his friends start training to fly Dynazenon, but the monster appears again without waiting for the time.

#15 - What Is a Kaiju User?

SSSS.Dynazenon - Season 1 - Episode 1

When high-school freshman Yomogi Asanaka stumbles across kaiju user Gauma, he and a few unsuspecting onlookers get caught up in a fight against kaiju.

#16 - What Was I Entrusted With?

SSSS.Dynazenon - Season 1 - Episode 12

To challenge the final battle, Homura and his friends reunited with Dynazenon.

#17 - Shining in Full Color Towards Greatness

Kamen Rider - Season 31 - Episode 21

Touma learns of people gone missing after seeing fantastical things; Yuuri want a normal form to fight with; Daishinji challenges Touma.

#18 - Which Memories Do You Regret?

SSSS.Dynazenon - Season 1 - Episode 10

An unprecedented force was hitting the city. Homura takes the Dyna Soldier and confronts its roots.

#19 - What Is a Traitor?

SSSS.Dynazenon - Season 1 - Episode 3

Mugwort and Yumeme visit the city where they fought the monsters and witness the tragedy. Homura and his friends start training to fly Dynazenon, but the monster appears again without waiting for the time.

#20 - Smiling Angel, Unfunny Joke

Kamen Rider - Season 34 - Episode 20

The black steel spanner was impatient. Ichinose was only an amateur. Kudo was supposed to be protected. Both of them obtained powers stronger than themselves as ``Kamen Riders.'' More power... More strength! ! Just as Spanner looks like that, her parents, who were supposed to be on a long journey, suddenly appear. Spanner smiles as he reunites with his parents. Maybe there is a place I should protect, a place I should return to. However, that was a pale dream given to me by an angel. The most vile and cruel trap for a spanner. When the messenger of darkness, the angel of darkness, laughs, the wrench of a spanner echoes in vain.

#21 - Gotcha! X Hopper!

Kamen Rider - Season 34 - Episode 27

#22 - At the Promised Place

Kamen Rider - Season 31 - Episode 12

Rintarou is dealing with injuries from his prior battle and Ryou is worried that Kento is going to do something stupid.

#23 - A Beam of Light to Save the World

Kamen Rider - Season 31 - Episode 16

The gang is preparing for a New Year's celebration when Touma gets an offer from the Southern Base.

#24 - A Story is Born When the World Ends

Kamen Rider - Season 31 - Episode 47

Touma falls at the hands of Storius as Luna rushes to find him.

#25 - Out of Control Liner! Dark Rider!

Kamen Rider - Season 34 - Episode 12

The spy was a messenger from the Alchemy Union, Investigator Shiori Harima! Anger boils inside Houtarou as she treats Kemmie like trash. However, the three dark sisters appear and the members of Alchemy Academy are in the biggest crisis! A fragment of Malgam, a mass of human malice. System information of “Gatcha Driver” and the powerful power of “Level Number 10”! The actors are ready. Holding the completed "Dreaddriver" in hand, Atropos smiles fearlessly. He sets his sights on the only young experimental subject. "From now on, your handwriting will be Destroyer of Darkness."

#26 - Seize Happiness! Shine Gotchalibur!

Kamen Rider - Season 34 - Episode 15

Why do X-Rex eat people? The reason is curiosity about people. Because of their ability to see into the memories of the people they ate, they satisfied their curiosity by eating the people they were interested in. Houtarou, who was able to realize the true meaning, got X-Rex as well! Use the Super Gatchard Cross X-Rex to rush to Rinne and the Mabe family who are being attacked by the Three Dark Sisters! However, Gatchard defends himself against the onslaught of the three sisters. Atropos tries again to torture Rinne, who cannot use alchemy. Meanwhile, the Mabe family is also under the influence of evil...! It's bad if it stays like this! ! At that moment, everyone's voices reached Houtarou's ears. Turn everyone's thoughts into power, protect everyone, and Gatchard! Finally, it's time for Rinne to fight back...! ?

#27 - V For Vendetta/Infected Vehicle

Kamen Rider - Season 20 - Episode 11

Shotaro decides to help an underworld gang after a member is killed by a Dopant-possessed car.

#28 - Sealed by Arthur

Kamen Rider - Season 31 - Episode 8

Ryou is turned to stone during a battle, leaving the other swordsmen to stop Medusa without him.

#29 - Lightning Causes a Commotion, the Clouds Darken

Kamen Rider - Season 31 - Episode 11

Kento is determined to find Calibur and find out what happened to his father.

#30 - The King's Sword in Avalon

Kamen Rider - Season 31 - Episode 7

Rintarou trains to avenge his master as Touma heads to Avalon to fix his sword.

#31 - Burn! Fight! Wrestler G!

Kamen Rider - Season 34 - Episode 5

A hunt for more chemys leads the academy to a professional wrestling dojo. When they come under attack, Houtarou must find a new combo in order to defeat the strong Malgam.

#32 - What Are These Overlapping Emotions?

SSSS.Dynazenon - Season 1 - Episode 9

Homura and Yumeme listen to the story of Kano's death. A monster appears without being able to swallow the story. On the other hand, Chise was isolated with a secret.

#33 - Phenomenal! The Ganma World!

Kamen Rider - Season 26 - Episode 21

Takeru discovers that Makoto's real body still exists in the Gamma World, and once that disappears, Makoto will as well. To save Makoto, Takeru enlists the help of Akari who tries to use the Art Supplies Gamma to figure out a way to save Makoto, but Makoto has already gone off on his own to settle matters his own way.

#34 - Teaming Up With Swans

Kamen Rider - Season 22 - Episode 23

Gentarou and friends hear about a new hero from their classmate Norio Eguchi, who identifies the hero as Cygnus and also happens to be a member of the Ugly Duckling Society, a fan club dedicated to Cygnus. However, this new hero is not as good as he seems…

#35 - The Motivation For Heroism

Kamen Rider - Season 22 - Episode 24

The gang must race to find out who the Switcher is – before the new ‘hero’ wipes out Fourze and Meteor to become the sole hero in the city…

#36 - Miracle! Unlimited Feelings!

Kamen Rider - Season 26 - Episode 33

Gammiser Gravity began to attack along Gammaizer Fire. This attack made some significant damage. Alain trying to protect the earth with its latent strength. These forces can kill Alain as well, because it was trying to protect Takeru Alain and destroy Gammiser Fire. It's unexpected happens Eyecon Takeru broken by attacks from Gammaizer Gravity and Takeru disappeared. Takeru disappeared among the friends of his sad. Some ways to do to restore Takeru. Alain and Makoto were attacking several gates. To fight Gammiser, Akari opened the gates of another world to throw Gammiser there. But this method fails. Gammiser escaped from another world and make all seriously injured.

#37 - Strange! The Power of the Ganmaizer!

Kamen Rider - Season 26 - Episode 31

Alain has taken a big step by deciding to live as a human with Fumi’s memory in his heart. He asks Takeru and Makoto for help. After many difficulties, their objective has unified and they can now fully join forces. Alain proposes destroying the gates that connect this world to the Gamma World. Still at doubt about the recent insight into people’s memories he's been having, Takeru agrees to assist Alain. In the Gamma World, Edith questions Adel: “What do you wish for?” Adel laughs this question off and uses his newfound power. As a consequence, many adults have become children around the city, Shibuya’s mother being one of them. Daitenkū-ji is filled with children and a familiar face makes an appearance.

#38 - I'm More Than Ready For What's in Front of Me

Kamen Rider - Season 31 - Episode 15

Calibur and Saber race for the Table of Contents as the rest of the swordsmen continue their battle.

#39 - A Rival Appears?! Gotcha and Juliet

Kamen Rider - Season 34 - Episode 30

#40 - What Wish Can't Come True?

SSSS.Dynazenon - Season 1 - Episode 11

Everyday life began to return to Homura, and the monster Yusei thoughts had lost their place in the world where they lost their monsters.

#41 - Finding Bushido

Kamen Rider - Season 34 - Episode 3

Houtarou continues his quest to befriend all the Chemies as he meets a Chemy known as Apparebushido. A new alchemist appears and demands Houtarou hands over his driver.

#42 - Conspiracy! Adel's Trap!

Kamen Rider - Season 26 - Episode 22

Takeru finds himself fighting Alain and two Gamma Superiors while Makoto meets Alia and Emperor Adonis who is informed of his children's antics in the human world for the first time.

#43 - What's Lover-Like Mean?

SSSS.Dynazenon - Season 1 - Episode 5

Homura and his friends decided to go to a large outdoor pool at Chise's suggestion, but there was an unexpected companion there. Gauma orders Homura and Yumeme to pretend to be lovers for a certain operation.

#44 - Gorgeous! Queen of Illusion!

Kamen Rider - Season 26 - Episode 17

Takeru investigates a Gamma that seems to be only attacking young women.

#45 - Blazing Kyoto! Scorched Love: The Chemy Thunderous Affair

Kamen Rider - Season 34 - Episode 10

Hijiri, whom Kajiki is in love with, has a boyfriend! Although Kajiki is depressed, he learnt that Hijiri boyfriend is most likely the remaining suspect who made his escape after Clotho attacked the police van! If that's the case, then there's a possibility that the suspect has already became a Malgam. Hijiri who is with Kajiki is in danger! Houtarou and Minato start searching for the suspect together, but...!

#46 - Open Wide Rex! Dangerous X!

Kamen Rider - Season 34 - Episode 14

Kemmy can eat people! ? A new level number 10 appears in front of Houtarou and his friends who have successfully become friends with UFOX. Its name is “XX-Rex”! However, the X-Rex has a surprising habit of eating humans. Leaving it unattended is dangerous. Houtarou runs into Gotcha, but wonders why he would do such a thing. Meanwhile, there is another shadow chasing X-Rex. They are occult writer Manabe and his daughter, Sawa. Rinne begins to identify with Sou, who is thinking about her father. But then, the evil hand of the Three Dark Sisters approaches again...! The strongest dinosaur level 10, what is its true meaning? ?

#47 - Mad Warrior! The Black Flame, Valvarad!

Kamen Rider - Season 34 - Episode 21

The black steel spanner was engulfed by its own "black flame" and was tragically turned into Malgam. In the past, he saw his parents murdered with his own eyes. Despair and hatred bring their parents back to life and have them killed again and again in front of their eyes. Anger towards his master who hid his past and locked away his power for 10 years. Helpless, Houtarou and his friends help Kyoka create a screwdriver and think about their only hope of saving Spanner. Spanner vows to take revenge on Glion even if he becomes Malgam. What appeared in front of him was his former senior wearing a dread mask. Who will control their power and win the battle? And what is the outcome of the spanner that is eaten away by black flames...

#48 - Thwarting Evil. The Jet Black Winds

Kamen Rider - Season 34 - Episode 26

#49 - What's Our Reason for Coming Together?

SSSS.Dynazenon - Season 1 - Episode 7

Dynazenon is defeated by a monster. The mysterious giant that appears there. Despite being confused, Onija and Mujina begin to fight the giant. There was no way to fix the Dynazenon that had injured the Gaumas.

#50 - Mastered! Each of Their Paths!

Kamen Rider - Season 26 - Episode 37

After confirming that she hears other people’s thoughts, Takeru visits Honami’s group members once again in order to help. Honami hears their thoughts, still saying only bad things about her. On top of that, Igor has set a Gamma on her due to her power and she feels now, more than ever, like quitting for good. Alain, on his part, is on the verge of defeat as well in the trial world he was sent to by Sanzo. Akari, who for some reason passed the audition for harp+y 4, is now faced with Honami’s pressure but she decides to give her best. Meanwhile, Makoto encounters his other “self”, the one Kanon told him about. In the Gamma World, the Gammisers talk to Adel and tell him it is time to obtain new power.