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 - 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.

#5 - Winter Night Phantom

The Big O - Season 1 - Episode 10

A mysterious bomber is murdering retired Paradigm officials.

#6 - 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.

#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 - 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."

#9 - Missing Cat

The Big O - Season 1 - Episode 8

An abandoned kitten sparks a confrontation with a mad biologist.

#10 - 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.

#11 - Gotcha! X Hopper!

Kamen Rider - Season 34 - Episode 27

#12 - 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.

#13 - 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.

#14 - What Was I Entrusted With?

SSSS.Dynazenon - Season 1 - Episode 12

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

#15 - 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.

#16 - 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.

#17 - 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.

#18 - 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.

#19 - 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.

#20 - 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.

#21 - 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.

#22 - 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.

#23 - 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.

#24 - 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.

#25 - 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.

#26 - 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.

#27 - 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.

#28 - 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.

#29 - 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...!

#30 - 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."

#31 - 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...! ?

#32 - 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.

#33 - A Rival Appears?! Gotcha and Juliet

Kamen Rider - Season 34 - Episode 30

#34 - 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…

#35 - 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.

#36 - 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.

#37 - 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.

#38 - 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.

#39 - Gorgeous! Queen of Illusion!

Kamen Rider - Season 26 - Episode 17

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

#40 - 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? ?

#41 - 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.

#42 - Drastic! The Commander's Decision!

Kamen Rider - Season 26 - Episode 41

Takeru only has 19 days left. Feeling uneasy at the fact that he is apparently losing his humanity, he talks to Akari. She assures him that they will do whatever they can to help him revive. However, Takeru is troubled by his powerlessness. He calls the Hermit but Akari is infuriated at the old man’s response. Beethoven possesses Akari in her rage, greatly increasing it and causing a ruckus at the Tenkuji Temple. Everyone tries to think of a solution. Meanwhile, in the Gamma world, Edith has decided to put a stop to Adel. He obtains an Eyecon when Adel tries to connect with the Great Eye, however he only managed to break the connection and send Adel into the human world. Adel and Edith fight. Takeru and the others come to his aid. Edith and Takeru’s encounter will lead to the truth about the Gamma World.

#43 - 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.

#44 - What Is This Pain?

SSSS.Dynazenon - Season 1 - Episode 6

Yumeme hears rumors about Kano's death from the OB of the chorus club to which Kano belonged during his lifetime. Meanwhile, the calendar awakens from a hangover and finds that he has lost the Dynastriker. Gauma's blamed calendar reminds me of meeting a person last night Screenplay:

#45 - What Is This Wavering Emotion?

SSSS.Dynazenon - Season 1 - Episode 8

A city where monsters spread confusion. Gauma gathers the Homuras and attempts the first monster capture operation.

#46 - What Is This Thumping Heart?

SSSS.Dynazenon - Season 1 - Episode 4

Homura catches a cold and falls asleep. Gauma invites Yumebu to visit him. Homura is confused by the sudden visit of Yumebu, but the relationship between the two gradually breaks down. When I heard that a monster had appeared, I left the cold mugwort and headed for the battle.

#47 - Recollection! Hidden Heart!

Kamen Rider - Season 26 - Episode 32

Igarashi has called Takeru into the memories of past times. He finds out a truth that has been hidden for 10 years. The wishes and feelings of his father, Igarashi, Saionji and the hermit resonate inside him. What could be beyond these strange changes Takeru is experiencing?! Meanwhile, Shibuya is looking for his mother, who has escaped yet again. More and more adults are being turned into children. Society itself may spiral out of control. Everyone is running against the clock to solve the mysterious phenomenon the new Gammiser has set in motion.

#48 - Vehement! Idol Declaration!

Kamen Rider - Season 26 - Episode 36

Igor changes his strategy after Mugen Damashii defeats another Gammiser. Takeru finally knows the true meaning of fun thanks to the Brothers Grimm. Also, a new Gammiser that controls wind appears before Takeru. Deep Specter and Necrom are being attacked on all sides. Alain cannot stand the idea that he might not be able to protect the treasures of this world. Meanwhile, Bills attempts to put his own plan into action by attempting in on an idol, to which Akari decides to replace. Apparently, this plan is connected to his goals from his own childhood. In order to re-inspire belief, Sanzo sends Alain to a training field in another world. But Akari and Onari also seem to be targeted by Igor's plans as well...

#49 - Changing Sadness into a Smile

Kamen Rider - Season 31 - Episode 27

Touma trains with Primitive Dragon in order to save the boy in his visions.

#50 - Write the Past, Draw the Future

Kamen Rider - Season 31 - Episode 28

Mei is tasked to ask Touma about writing a sequel to one of his stories; Ren leaves the Sword of Logos to join with Kento.