This article is about a/an monster in the TV special Birth of the 10th! Kamen Riders All Together!!.

Yamaarashi-Roid (ヤマアラシロイド Yamaarashi Roido): A porcupine monster, whose human identity in the manga was Needle. He possesses the ability to produce quills that can be launched as projectiles or wielded as a weapon. 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.

Heisei Rider vs. Showa Rider: Kamen Rider Taisen feat. Super Sentai

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.

Kamen Rider Ghost


Yamaarashi-Roid wearing a Shocker belt

For unknown reason, Yamaarashi-Roid joined Shocker later and used his needles to collect the human body and prepare for Ambassador Hell's return. He was destroyed by Zyuoh EagleIcon-crosswiki and Kamen Rider Ghost Grateful Damashii's attack.Appearance! The Mysterious Warrior!

Game World

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 persistantly attack, no matter how many times defeated, the Kamen Riders he had gathered for this purpose. Maze 2: Escape 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. Maze 3: Gorider Forever

Kamen Rider Spirits

Main article: Needle

Needle / Yamaarashiroid - Leader of the Cyborg Elite. In human form, he is a mild-mannered, bespectacled man with blond hair. He possesses the ability to produce quills to attack as well as various other effects. After most of the Cyborg Elite fail, he goes after ZX himself, only to be defeated. Afterward, he quits Badan, believing Ambassador Darkness now wants his head for failure.

Behind the scenes


  • In Kamen Rider Taisen, Yamaarashi-Roid was voiced by Kenichi Suzumura (鈴村 健一 Suzumura Ken'ichi) and portrayed by suit actor Kazuya Okada (岡田 和也 Okada Kazuya).
  • In Ghost, Yamaarashi-Roid was voiced by Hidenari Ugaki (宇垣 秀成 Ugaki Hidenari) and portrayed by suit actor Jun Watanabe (渡辺 淳 Watanabe Jun).


  • In epsiode 24 of Kamen Rider Ghost, following Zyuoh Eagle and Ghost's roll calls, Yamaarashi-Roid does his own roll call too, stating his height (242 cm) and weight (92 kg).