Riotrooper

Riotroopers (or Riot Troopers) (ライオトルーパー, Raiotorūpā) are a para-military force of henchmen from the Kamen Rider Series installment Kamen Rider 555 and the accompanying film Kamen Rider 555: Paradise Lost. They are the first set of "Rider-like" foot soldiers within the franchise. They are also the first case of a Rider originally created for a Kamen Rider movie that was later introduced in the TV series.

History
They are employed by Smart Brain and are a personal army that fought against the title character Kamen Rider Faiz and his allies. As the show uses the Greek alphabet as a motif, omicron (O) is their Greek symbol, and unlike the other Rider Gears, they seem to possess no Smart Brain number, most likely due to the lack of a phone unit in the Gear. Their data is derived from the Faiz Gear with some modifications for mass production purposes, which results in the suits' resemblance to a simplified Faiz. Both sets of troopers, in the series and in the movie, were destroyed by Faiz in Axel Form. In the TV Series, they were destroyed by Faiz Axel's Axel Sparkle Cut; and in the "Paradise Lost" movie, they were destroyed by the Axel Crimson Smash.

TV Series
The Smart Buckle was created by Hanagata. There were six belts made to protect the Orphnoch King, but Hanagata said that the belts could also destroy him if they can protect him. Several Orphnoch were selected to wear the belts. They all wore black suits and shades, similar to Men In Black agents. Naoya Kaidō (the Snake Orphnoch) was originally appointed as leader of the Riotroopers until he found out that Yuji Kiba, the person who gave him the Smart Buckle, was planning to attack Mari and the gang. This made Kaidō quit being a Riotrooper because he felt Yuji lost his belief in protecting humanity. Kaido, with the help of Mihara, tried to take them out themselves, but were out-matched, only for Takumi to intervene and destroy them all.

Suit actor, Makoto Ito, plays one of the TV Series' Riotroopers (particularly, Naoya's replacement) in Kamen Rider 555, he would go on to play Daisuke Danda, better known as Kamen Rider Danki, in Kamen Rider Hibiki.

Paradise Lost Movie
The Smart Buckles are mass produced (approximately 10,000). These wearers were more akin to traditional military unit. Their purpose is to exterminate any human resistance that oppose the Orphnoch race. Led by Kamen Rider Psyga, they attacked the human sanctuary until Yuji, Yuka, and Naoya intervened. They were then sent to hunt Mari and Takumi, where Takumi regained his memory as Faiz, then transformed to protect Mari from them. When they are knocked out of their Riotrooper forms, they transform back to their Orphnoch forms.

Kamen Rider Decade
A huge amount of Riotroopers are seen fighting the Rider War alongside ZECTroopers in Episode 1. They are seen again in the special version of episode 31 getting destroyed by Decade.

10th Anniversary Project Masked Rider LIVE & SHOW
In the 10th anniversary show, a Shocker minion wants to be a Rider. He tells every Shocker minion this and he winds up thrown in prison with Yuusuke Onodera. Yuusuke nicknames his new friend "Uu-chan". They talk about that dreams are possible and Kuuga teaches him about the Riders. After getting separated, the minion gets turned into a monster and is forced to fight his friend, After Yuusuke got through to his friend, somehow the minion becomes a Riotrooper. Alongside his new allies, he fights Shocker and defeats them.

Kamen Rider Battride Wars
Riotroopers appear as Common Enemies in the video game Kamen Rider Battride Wars.

Henshin Sequence
The Riot Trooper henshin in the television series differs from the one in "Paradise Lost" movie.


 * TV Series: The troopers say "Henshin". Then, the Smart Brain logo on the buckle, which is connected to the belt and sticking out vertically, is inserted when being pushed forward into the belt.
 * Paradise Lost: Instead of pushing over the buckles to start transformation, the Troopers touch a pad on their right shoulder after saying "Henshin". Before the full transformation begins, the wearer's Orphnoch outline appears before becoming a Riotrooper.