Kinokojin

Kinokojin (キノコジン): A mushroom Neo-Shocker cyborg.

Biography
When Tsukuba investigates Devil's Mountain Pass, Kinokojin mimics Yukie's appearance to kill the Kamen Rider when his guard is down while visiting a girl named Kumiko in the hospital. However, exposed by his cold hands, Kinokojin uses his spores to manipulate Tsukuba into drowning himself. But the seawater negates the spores and Tsukuba assume his Kamen Rider form and causes Kinokojin to dissolve with his Sky Kick.

Kaijin the Second Generation Corps
He was later resurrected as part of Kaijin the Second Generation Corps (怪人二世部隊). They wore yellow scarves and were destroyed by the 7 Riders.

Abilities
Augmented with a special mushroom with near unlimited energy, Kinokojin able to spew a deadly spore mist.

Portrayal
Kinokojin was voiced by Tetsuya Kaji and portrayed by an unidentified suit actor. When in the form of Yukie, he was portrayed by Misa Uehara.