|Black Rx's World|
|Kotaro Minami / Kamen Rider Black RX
Kotaro Minami is a man who fights the Crisis Empire as Kamen Rider Black RX in the RX World, able to become either Robo Rider, or Bio Rider. However, with Dai-Shocker appearing in his world, he finds himself outmatched by the new monsters while searching for his friend Joe the Haze. Natsumi convinces him that Tsukasa is not the Destroyer of Worlds that he heard about. Though he eventually learns of Joe's fate, Kotaro is not saddened as his friend would be with him in spirit.
Schwarian is a Strange Demon Robot from the Crisis Empire, seeing himself as the ultimate machine in his branch. He originally turned down Apollo Geist's offer to join Dai-Shocker until he sees his power first hand. He is destroyed by Decade Complete Form with the aid of Agito Shining Form.
Chaps are the Crisis Empire's foot soldiers.
In Episodes 26-27, an Imagin who accompanies Apollo Geist. Destroyed by Decade using Faiz Axel's power.
In Episode 26, Fangire who accompanies Apollo Geist. Destroyed by Decade using Agito's Rider Kick.
In Episodea 26-27, Fangire who accompanies Apollo Geist. Destroyed by Decade using Faiz Axel's power.
In Episodes 26-27, a mutant of Gorgom. Summoned by Apollo Geist to convince Schwarian to join Dai-Shocker. He is summoned again to help protect Apollo Geist from Black RX, only to be quickly destroyed by Black's Rider Punch.
In Episode 27, an Orphnoch. Destroyed by Diend.
Frilled Lizard Orphnoch
Brachypelma Worm Aurantium
Brachypelma Worm Viridis
Tarantes Worm Purpura