Chaps are the soldiers of the Crisis Empire and antagonists in Kamen Rider BLACK RX.
World of Black RX
The Chaps appear as the basic soldiers of the Crisis Empire in the World of Black RX.
Kamen Rider Fourze
A trio of Chaps appear fighting RX in video footage that Tomoko Nozama found on the internet, along with clips of other past Kamen Riders.
Kamen Rider x Super Sentai: Super Hero Taisen
The Chaps appeareds as soldiers of the resurgent Dai-Shocker assembled by Decade from the revived foes of the Kamen Rider in the "Super Hero Taisen" incident to wipe out the Super Sentai and ensure the survival of the Kamen Riders. After Dai-Shocker's alliance with Dai-Zangyack was revealed, both organizations were wiped out by a gathering of Kamen Riders and Super Sentai. Kamen Rider × Super Sentai: Super Hero Taisen
Kamen Rider × Super Sentai × Space Sheriff: Super Hero Taisen Z
The Chaps also served as a secondary soldier corps to Space Shocker, an evil alliance of past Kamen Rider villains similar to Dai-Shocker thataimed to conquer the universe.
Heisei Rider vs. Showa Rider: Kamen Rider Taisen feat. Super Sentai
The Chaps appeared as soldiers of the Underground Empire Badan. They fought against the 15 Heisei Riders and 15 Showa Riders when they teamed up to stop Badan.
Super Hero Taisen GP: Kamen Rider 3
The Chaps appeared as a secondary force of soldiers for Shocker in the altered timeline created by their History Modifying Machine.