Spirit World Inhumanoid Army

Spirit World Demons (45): When Kamen Rider Black RX was believed to be dead after the battle against Gran Zarius, Maribaron revived the spirits of Skull Devil #1, Meta Snake, Zuno Warrior, Harmful Nimp, Harmful Mantis Gill, The Lead Burrowing Ten, Erigitron and Ant Runt to kill the other 10 Kamen Riders. Because they are dead spirits, they are all a grayish-white in color. Harmful Nimp's spirit impersonated Kamen Rider 1. All of them were destroyed by Bio Rider.