NaN/100 votes#1 - Medal, Underwear, Mysterious Arm
Season 21 Episode 1 - Aired 9/5/2010
A mysterious arm reawakens the Greeed from their slumber and decides to use Eiji Hino, a cheerful wanderer, as his means of getting back what he desires as Kamen Rider OOO.
Director: Ryuta Tasaki
Writer: Yasuko Kobayashi
NaN/100 votes#2 - Greed, Ice Candy, Present
Season 21 Episode 2 - Aired 9/12/2010
Ankh explains the Greeed and the purpose of the Medals to Eiji, even as the human desires to merely use his new power to fight for good instead of for selfish needs.
Director: Ryuta Tasaki
Writer: Yasuko Kobayashi
NaN/100 votes#3 - Cat, Evolution, A Glutton
Season 21 Episode 3 - Aired 9/19/2010
Ankh becomes troubled when Eiji prevents him from eliminating his possessed body's sister while another Greeed uses a man's gluttony to create more Medals.
Director: Takayuki Shibasaki
Writer: Yasuko Kobayashi
NaN/100 votes#4 - Doubt, Photo E-mail, Saving Hand
Season 21 Episode 4 - Aired 9/26/2010
Ankh threatens to leave OOO for Kazari and the Greeed while investigating the evolution of humanity while Eiji tries to find more about Hina.
Director: Takayuki Shibasaki
Writer: Yasuko Kobayashi
NaN/100 votes#5 - Game of Tag, Nest, 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.
Director: Osamu Kaneda
Writer: Yasuko Kobayashi
NaN/100 votes#6 - Western Clothing, A Contract, Ultimate Combo
Season 21 Episode 6 - Aired 10/10/2010
Hina confronts Yamano's shopping addiction when her father goes bankrupt while Ankh confronts Kougami about his share deal of the Cell Medals.
Director: Osamu Kaneda
Writer: Yasuko Kobayashi
NaN/100 votes#7 - Useless Husband, A Trap, Big Win
Season 21 Episode 7 - Aired 10/17/2010
Eiji tries to research a husband bullied by his wife that is being mocked by Gamel while Ankh follows a lead for a missing Core Medal.
Director: Satoshi Morota
Writer: Yasuko Kobayashi
NaN/100 votes#8 - Slacking Off, Lack of Ambition, On a Break
Season 21 Episode 8 - Aired 10/24/2010
Eiji gets to the root of the Komoris' problem involving greed and loss of ambition while Ankh fights for survival after a failed confrontation with Uva.
Director: Satoshi Morota
Writer: Yasuko Kobayashi
NaN/100 votes#9 - Soaked, The Past, Scorching Hot Combo
Season 21 Episode 9 - Aired 10/31/2010
A serial bomber tied to a nest of Yummies leads to Eiji to reveal his past to Hina and forces him to encounter a strange man he believes is Mezool's victim.
Director: Takayuki Shibasaki
Writer: Yasuko Kobayashi
NaN/100 votes#10 - Fist, An Experiment, Super Bike
Season 21 Episode 10 - Aired 11/14/2010
Eiji must figure the means of stopping the mad bomber and his Yummies to prevent any more lost lives, even with Maki observing the creation of his worker's monsters.
Director: Takayuki Shibasaki
Writer: Yasuko Kobayashi
NaN/100 votes#11 - Traveler, Swallowtail Butterfly, 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; while Gotou doubts Eiji's effectiveness as OOO.
Director: Osamu Kaneda
Writer: Shouji Yonemura
NaN/100 votes#12 - Unagi, The World, Heavy-Hitter Combo
Season 21 Episode 12 - Aired 11/28/2010
Eiji teaches a lesson to Tsukuba and Gotou about going forth to gain what is desired; while Ankh tries to figure a way to manage the flying Ageha Yummy using Gamel.
Director: Osamu Kaneda
Writer: Shouji Yonemura
NaN/100 votes#13 - Siamese Cat, Stress, Genius Surgeon
Season 21 Episode 13 - Aired 12/5/2010
Ankh is at a breaking point with everything surrounding his human host; a highly sought after doctor has been repeatedly removed from the operating room, making her frustration a perfect target for the Greeed.
Director: Hidenori Ishida
Writer: Yasuko Kobayashi
NaN/100 votes#14 - Pride, Surgery, Secret
Season 21 Episode 14 - Aired 12/12/2010
Both Hina's brother and the hospital director are in critical condition after Ankh's detachment and the Yummy attack. Eiji must find both Ankh and the affected surgeon before it's too late.
Director: Hidenori Ishida
Writer: Yasuko Kobayashi
NaN/100 votes#15 - Struggle for the Medals, Transport Truck, Container
Season 21 Episode 15 - Aired 12/19/2010
Ankh finds one of his core medals; Gotou is transporting a truck full of medals to Doctor Maki; Kazari appears to Ankh and Eiji, telling them that Hina is in Gotou's truck.
Director: Satoshi Morota
Writer: Yasuko Kobayashi
NaN/100 votes#16 - Conclusion, Greeed, New Rider
Season 21 Episode 16 - Aired 12/26/2010
Eiji learns about how the Greeed were born; Gamel searches for Mezool; Kamen Rider Birth joins the fight.
Director: Satoshi Morota
Writer: Yasuko Kobayashi
NaN/100 votes#17 - Kendo Girl, Oden, Splitting Yummy
Season 21 Episode 17 - Aired 1/9/2011
The Greeed take an interest in a girl who wants to get better at kendo; Ankh takes an interest in Kamen Rider Birth; Hina gives both Eiji and Ankh gifts for saving her.
Director: Takayuki Shibasaki
Writer: Yasuko Kobayashi
NaN/100 votes#18 - Destruction, A Reason, Unagi Whip
Season 21 Episode 18 - Aired 1/16/2011
Eiji and Ankh try to find out the reason that the Yummy split in two, but Kamen Rider Birth is one step ahead of them.
Director: Takayuki Shibasaki
Writer: Yasuko Kobayashi
NaN/100 votes#19 - A Red Medal, A Detective, A Betrayal
Season 21 Episode 19 - Aired 1/23/2011
Kougami tries to give Eiji one of Ankh's medals, but he refuses; a face from the detective's past shows up at Cous Coussier; thanks to Kazari, a criminal that the detective put away is on the streets and looking for revenge.
Director: Hidenori Ishida
Writer: Yasuko Kobayashi
NaN/100 votes#20 - Decoy, Qualifications, Flaming Combo
Season 21 Episode 20 - Aired 1/30/2011
Ankh tricks Kazari by telling him that Eiji knows where his last medal is and then chases after Hina who has his own medal; Date and Gotou discuss the skills need to be Kamen Rider Birth; Kougami changes his mind and sends Ankh's medal to Eiji.
Director: Hidenori Ishida
Writer: Yasuko Kobayashi
NaN/100 votes#21 - Hopper, Parent and Child, Hero
Season 21 Episode 21 - Aired 2/6/2011
The Cous Coussier gang runs into a young boy getting attacked for telling off a man for littering, learning that it's something he picked up from his father; the Greeed creates a Yummy from the desire to help people.
Director: Ryuta Tasaki
Writer: Nobuhiro Mouri
NaN/100 votes#22 - Choco, Conviction, Power of Justice
Season 21 Episode 22 - Aired 2/13/2011
Susumu lets his desire for justice get out of hand and it's up to Eiji to stop him before it's too late; Gotou and Takashi have a heart-to-heart conversation about their ideals.
Director: Ryuta Tasaki
Writer: Nobuhiro Mouri
NaN/100 votes#23 - Beauty, Egg, Dormant Desire
Season 21 Episode 23 - Aired 2/20/2011
Kazari is drawn to the vanity of woman whose sister takes all the credit for her work.
Director: Satoshi Morota
Writer: Yasuko Kobayashi
NaN/100 votes#24 - Memory, Love, Sea Combo
Season 21 Episode 24 - Aired 2/27/2011
Eiji is head over heels for Yuumi and it's up to Date to save his old friend before she does something that she'll regret.
Director: Satoshi Morota
Writer: Yasuko Kobayashi
NaN/100 votes#25 - Boxer, Left Hand, Bird Yummy
Season 21 Episode 25 - Aired 3/6/2011
Ankh is acting more standoffish than usual; a boxer is forced into retirement just before a big match and is captured by a bird Yummy.
Director: Takayuki Shibasaki
Writer: Yasuko Kobayashi
The Best Episodes of Kamen Rider Season 21
Every episode of Kamen Rider Season 21 ranked from best to worst. Discover the Best Episodes of Kamen Rider Season 21!
Takeshi Hongo is a promising young man with a passion for motorcycle racing. However, his dreams are suddenly ruined when he gets kidnapped by Shocker,...
Genres:Action & AdventureSci-Fi & FantasyDrama
Season 21 Ratings Summary
"Medal, Underwear, Mysterious Arm" is the best rated episode of "Kamen Rider" season 21. It scored N/A/10 based on 0 votes. Directed by Ryuta Tasaki and written by Yasuko Kobayashi, it aired on 9/5/2010. This episode is rated NaN points higher than the second-best, "Greed, Ice Candy, Present".