Yamaarashi-Roid

Yamaarashi-Roid (voiced by Hidenari Ugaki) is a porcupine monster created by Badan Empire. In the original ZX magazine stories, which were published before the TV special, it's noted that he was the leader of Badan's cyborg troops, but that's never mentioned in the actual TV special.

Yamaarashi-Roid partipates in the operation to deliver Badanium 84 to Badam's Space Break System, however, his efforts are stopped by Kamen Rider X, who doesn't destroy him, but manages to stop him from delivering the shipment. When the Riders attack Badan's Japanese base, Yamaarashi-Roid faces Kamen Rider 1 and Rider 1 destroys him by knocking him into Dokuga-Roid.

Yamaarashi-Roid reappears as part of the Underground Empire Badan. Hinting at the newly revealed nature of Badan, the Kingdom of the Dead, half of his body now shows exposed skin and bones. This time, Yamaarashi-Roid takes a clear leadership role within the organization, leading their troops in various attacks.

When the Heisei Riders and Showa Riders unite to take down Badan, Yamaarashi-Roid is destroyed by Armored Riders Baron Mango Arms, Ryugen Kiwi Arms, and Zangetsu-Shin.

Yamaarashi-Roid returned to the world of the living as a member of Shocker, using his needles to collect humans and prepare Ambassador Hell's revival. He was destroyed by Zyuoh Eagle and Kamen Rider Ghost Grateful Damashii's attack.

Yamaarashi-Roid was part of the endlessly reviving army of Shocker in the amusement park Game World. Emerging as a result of Kuroto Dan's plot to revive himself, they would persistently attack, no matter how many times defeated, the Kamen Riders he had gathered for this purpose. Once the Game World was destroyed by Kazuma Kenzaki's Joker Undead power, the Shocker army was assembled one last time under Kamen Rider Genm Zombie Gamer and Totema, but was ultimately wiped out by Kamen Rider Ex-Aid Maximum Gamer Level 99 and the second Kamen Sentai Gorider.

Trivia

 * TBA