The BEST episodes of Kamen Rider season 21

Every episode of Kamen Rider season 21, ranked from best to worst by thousands of votes from fans of the show. The best episodes of Kamen Rider season 21!

A motorcycle-riding hero of justice rises up to fight an evil force, stopping their evil deeds while using their own power against them.

Last Updated: 4/18/2026Network: TV AsahiStatus: Continuing
Medals for Tomorrow, Underwear, and Arms to Reach Out With
star
8.33
3 votes

#1 - Medals for Tomorrow, Underwear, and Arms to Reach Out With

Season 21 - Episode 48 - Aired 8/28/2011

Having finally taken the burden to becoming the true OOO, Eiji fights to prevent Doctor Maki from realizing his “perfect end” while working to reach his ultimate desire of being there for others and having others be there for him.

Directors: Ryuta Tasaki
Medal, Underwear, and a Mysterious Arm
star
7.10
30 votes

#2 - Medal, Underwear, and a Mysterious Arm

Season 21 - Episode 1 - Aired 9/5/2010

When monsters of desire are awakened from their slumber, a homeless man is recruited by a mysterious arm to fight against them.

Directors: Ryuta Tasaki
Desire, Ice Cream, and a Present
star
7.00
2 votes

#3 - Desire, Ice Cream, and a Present

Season 21 - Episode 2 - Aired 9/12/2010

Ankh explains the Greed and the purpose of the Medals to Eiji, even as Eiji desires to merely use his new power to fight for good instead of for Ankh’s selfish needs.

Directors: Ryuta Tasaki
Slacking Off, Having no Desire, and Taking a Break
star
7.00
1 votes

#4 - Slacking Off, Having no Desire, and Taking a Break

Season 21 - Episode 8 - Aired 10/24/2010

Eiji gets to the root of Takeshi and Momoko’s issues involving greed and loss of ambition, while Ankh fights for survival after a failed confrontation with Uva.

Directors: Satoshi Morota
Cats, Evolution, and Gluttons
star
6.50
2 votes

#5 - Cats, Evolution, and Gluttons

Season 21 - Episode 3 - Aired 9/19/2010

Ankh becomes troubled when Eiji prevents him from eliminating his possessed body’s sister.

Doubts, Pics, and a Helping Hand
star
6.50
2 votes

#6 - Doubts, Pics, and a Helping Hand

Season 21 - Episode 4 - Aired 9/26/2010

Ankh threatens to leave OOO for Kazari and the Greed.

A Game of Tag, a Lair, and a Celebrity
star
6.00
2 votes

#7 - A Game of Tag, a Lair, and a Celebrity

Season 21 - Episode 5 - Aired 10/3/2010

Kougami asks for a share of Eiji and Ankh’s Medals, while Mezool decides to use Hina’s shopaholic classmate to create a new Yummy.

Directors: Osamu Kaneda
Fashion, a Contract, and the Ultimate Combo
star
6.00
1 votes

#8 - Fashion, a Contract, and the Ultimate Combo

Season 21 - Episode 6 - Aired 10/10/2010

Hina confronts Yamano about her shopping addiction, while Ankh confronts Kougami about his share of the Cell Medal deal.

Directors: Osamu Kaneda
A Bad Husband, a Trap, and a Jackpot
star
6.00
1 votes

#9 - A Bad Husband, a Trap, and a Jackpot

Season 21 - Episode 7 - Aired 10/17/2010

Eiji tries to research a husband bullied by his wife over money, while Ankh follows a lead for a missing Core Medal.

Directors: Satoshi Morota
Soaking Wet, the Past, and the Blazing Combo
star
6.00
1 votes

#10 - Soaking Wet, the Past, and the Blazing Combo

Season 21 - Episode 9 - Aired 10/31/2010

A string of serial bombings tied to a nest of Yummies leads Eiji to reveal his past to Hina, and causes him to encounter a strange man he believes is Mezool’s victim.

A Traveler, a Butterfly, and a Celebrity
star
6.00
1 votes

#11 - A Traveler, a Butterfly, and a Celebrity

Season 21 - Episode 11 - Aired 11/21/2010

Eiji’s traveler friend becomes manipulated by Uva into becoming famous as he steals others' attributes.

Directors: Osamu Kaneda
A Siamese Cat, Stress, and a Genius Surgeon
star
6.00
1 votes

#12 - A Siamese Cat, Stress, and a Genius Surgeon

Season 21 - Episode 13 - Aired 12/5/2010

Ankh becomes sick of dealing with the problems of working with Eiji, as Kazari targets a famous surgeon who believes she is not getting the treatment she deserves.

Directors: Hidenori Ishida
Pride, Surgery, and Secrets
star
6.00
1 votes

#13 - Pride, Surgery, and Secrets

Season 21 - Episode 14 - Aired 12/12/2010

Eiji rushes to find Ankh to save Shingo’s life, while Tamura discovers the truth about what it means to be a surgeon.

Directors: Hidenori Ishida
Friendship, Rampage, and the Belt Left Behind
star
6.00
1 votes

#14 - Friendship, Rampage, and the Belt Left Behind

Season 21 - Episode 33 - Aired 5/8/2011

Eiji is summoned to a park owned by a former school friend who wants to be a greater help to his dreams. When Hina goes missing and Date is captured by a Yummy, Gotou struggles with his readiness to become Birth.

Directors: Hidenori Ishida
Best Friends, Manipulation, and Relationships
star
5.00
1 votes

#15 - Best Friends, Manipulation, and Relationships

Season 21 - Episode 34 - Aired 5/15/2011

Eiji confronts Kitamura about his desire to be the only one to be there for him, even as his Yummy continues to abduct Eiji’s allies. As Ankh is about to be merged with his original body, Eiji is forced to use the Putotyra Combo to save him…

Directors: Hidenori Ishida
Fists, Experimentation, and A Super Bike
star
5.00
1 votes

#16 - Fists, Experimentation, and A Super Bike

Season 21 - Episode 10 - Aired 11/14/2010

Eiji must figure the means of stopping the mad bomber.

Medal Combat, Transport, and Potential
star
5.00
1 votes

#17 - Medal Combat, Transport, and Potential

Season 21 - Episode 15 - Aired 12/19/2010

Kazari uses a transport truck of Cell Medals, one of Ankh’s Core Medals, and a captured Hina to lure all sides into a free-for-all showdown.

Directors: Satoshi Morota
star
0.00
0 votes

#18 - Siblings, a Rescue, and Eiji’s Departure

Season 21 - Episode 41 - Aired 7/10/2011

After Ankh is taken back by his body, Eiji becomes resolved to bring him back.

Directors: Kenzo Maihara
Returning a Favor, a Plot, and Purple Medals
star
0.00
0 votes

#19 - Returning a Favor, a Plot, and Purple Medals

Season 21 - Episode 31 - Aired 4/24/2011

Hina’s friend asks Eiji to help discover who has been helping out her family anonymously.

Directors: Satoshi Morota
A New Greed, the Void, and the Unstoppable Combo
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0.00
0 votes

#20 - A New Greed, the Void, and the Unstoppable Combo

Season 21 - Episode 32 - Aired 5/1/2011

The truth behind Eiji’s philosophy on life is revealed as he becomes the container of the mysterious Purple Medals.

Directors: Satoshi Morota
Dreams, a Brother, and Birth’s Secret
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0.00
0 votes

#21 - Dreams, a Brother, and Birth’s Secret

Season 21 - Episode 35 - Aired 5/22/2011

Hina tries to work out what her real dream is when she wins a fashion show, while Uva tries to work all sides to regain Mezool and Gamel’s Core Medals.

Directors: Ryuta Tasaki
A Broken Dream, a Body, and the Return of the Greed
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0.00
0 votes

#22 - A Broken Dream, a Body, and the Return of the Greed

Season 21 - Episode 36 - Aired 5/29/2011

Ankh tries to figure out his position with Shingo’s sudden reawakening.

Directors: Ryuta Tasaki
star
0.00
0 votes

#23 - Sleep, a Hundred Million, and Birth’s Transfer

Season 21 - Episode 37 - Aired 6/5/2011

Gamel and Mezool work together to create a Yummy that make people tired but sleepless.

Directors: Satoshi Morota
star
0.00
0 votes

#24 - Circumstances, a Parting, and A Tearful Birth

Season 21 - Episode 38 - Aired 6/12/2011

Eiji tries to deal with Date as he joins with Maki and the Greed, while Gotou tries to figure some way of winning Birth back to their side.

Directors: Satoshi Morota
star
0.00
0 votes

#25 - A Nightmare, a Security Camera, and Ankh’s Counterattack

Season 21 - Episode 39 - Aired 6/26/2011

Ankh worries about his future and the assault of his other self, while Chiyoko declares war on a security-obsessed household possessed by a Yummy.

Directors: Hidenori Ishida