Cassette Arms

What Riderman lacked in the technological enhancements of V3, as well as the Riders before him (Riders 1 and 2), he made up for in persistence, smarts, and his wide array of prosthetic weapons that he had named the to meet his needs. His weapons were also the basis for the "Rider Slash" and "Rider Shooting" finishing attacks.
The equipment of a bionic arm was a necessity for Joji Yuki, whose right arm was destroyed after being dipped into a pool of acid during an execution attempt, having been framed by General Yoroi. However, Yuki was rescued by his fellow Destron Scientists who performed the operation which not only replaced his arm but allowed him to transform into Riderman to get his revenge. 
==Cassette Arms==
==Other Versions==
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A.R. World=
The A.R. version of Joji Yuki from the World of Decade, while not shown transforming into Riderman, had a prosthetic arm similar to the original. He had lost his right arm in similar circumstances under the orders of the Great Leader of Dai-Shocker having previously served Dai-Shocker as a scientist.
*: This weapon is used while he is in human form. It's activated when Joji rips off his prosthetic arm and attaches the weapon part onto himself. This is seen in Kamen Rider Decade: All Riders vs. Dai-Shocker and in "The Next Decade" MV.
*: A sword type attachment. Only shown in concept art.
*: Only shown in concept art.
*Cassette Arm: Only shown in concept art.
KRDCD-Blaster Arm.png|A.R. Joji Yuki's Blaster Arm (normal)
KRDCD-Blaster Arm (Active).png|A.R. Joji Yuki's Blaster Arm (active)
Blade Arm Concept Art (Keita Amemiya).jpg|Keita Amemiya's concept art for the unused Blade Arm
Power Arm Concept Art (Keita Amemiya).jpg|Keita Amemiya's concept art for the unused Power Arm
Cassette Arm A Concept Art (Keita Amemiya).jpg|Keita Amemiya's concept art for unused Cassette Arm
Cassette Arm B Concept Art (Keita Amemiya).jpg|Keita Amemiya's concept art for unused Cassette Arm
|-|
S.I.C Hero Saga=
In Kamen Rider OOO: OOZ, Ankh possesses Joji Yuki, causing his normal Rope Arm to transform into a new form. The boasts a rope launcher, small missile launcher, chain gun, and an electromagnetic knife, giving Riderman the power to battle Shocker OOO and the Shocker Greeed.
Red cassette arms.jpg|Red Cassette Arm
</tabber>
==SD==
In the OVA Kamen Rider SD: Strange!? Man Spider, the SD Riderman has the Power-Arm equipped through the whole movie, although it seems to function like the Rope Arm too as demonstrated in the opening.
==Notes==
*The Cassette Arms introduced the concept of Kamen Riders regularly using weapons in addition to hand-to-hand combat, which would be immediately followed by X-Rider's Ridol before disappearing again until becoming prominent in Kamen Rider Black RX and throughout the Heisei era.
**The Cassette Arms themselves would be homaged by the Five Hands used by the protagonist from Kamen Rider Super-1, the Birth CLAWs used by the Secondary Rider from Kamen Rider OOO, and the Astroswitch Module attachments used by the protagonist from Kamen Rider Fourze.
*In his television appearances, Riderman equipped different Cassette Arms by sliding his bionic arm into the weapon itself, which existed as an external object. In the Kamen Rider Spirits manga, he instead slides different cassette-shaped mechanisms, which are carried in a pouch on his belt, into his bionic arm from behind the elbow, which reconfigures his arm into the desired Cassette Arms weapon.
==Appearances==
Category:Rider Weapon
Category:Showa Era Weapons
Category:Attachments
Category:Drills
Category:Chains
Category:Guns
Category:Knuckle Weapons
Category:Swords
Category:Arsenal (V3)