This article is about a/an monster in Kamen Rider Drive.

The Bat Type Roidmudes (バット型ロイミュード Batto-gata Roimyūdo) were one of the three basic combatmen types of Plain Roidmudes. They can also forsake their humanoid forms and transform into a larger shape more befitting their bat motif, called a Bat Type Roidmude Berserk Body (バット型ロイミュード暴走体 Batto-gata Roimyūdo Bōsō-tai), via the absorption of three Viral Cores or two if they have already evolved into their Evolution State (進化態 Shinka-tai) form.

Through data stolen from the Roidmudes through a currently unknown source, Megahex created a force of Plain Roidmudes (Lost Number) (プレーンロイミュード(ロストナンバー) Purēn Roimyūdo Rosuto Nanbā), mechanical and numberless recreations of the Plain Roidmudes, to combat the Kamen Riders that stood in his way of assimilating Earth and its inhabitants. What surviving members of these Plain Roidmude (Lost Number) in the final battle between ZZZ Megahex's army and the Kamen Riders and Roidmude generals were deactivated upon ZZZ Megahex's permanent death. Kamen Rider × Kamen Rider Drive & Gaim: Movie War Full Throttle

Recorded on the Eradicated Roidmude Table, Bat Type Roidmudes were coded gold.

A total of 38 Bat Type Roidmudes existed among the 108. They became extinct with the death of Revenger Roidmude. Kamen Rider Drive Saga: Kamen Rider Mach

Bat Type Roidmudes

Types and Evolutions

A Bat Type Roidmude was enlargedIcon-crosswiki by the YokaiIcon-crosswiki page, Kyuemon IzayoiIcon-crosswiki.

A total of six Bat Type Roidmudes transformed into a Roidmude Berserk Body through the use of their corresponding Viral Cores.

A total of seven Bat Type Roidmudes were modified to join Medic's Reaper Legion.

A total of six Bat Type Roidmudes achieved evolution into an Advanced Roidmude.

A total of four Bat Type Roidmudes achieved a standard Evolution State.

A total of three Bat Type Roidmudes synchronized their emotions with humans through use of their corresponding Neo Viral Cores to achieve two seperate Fusion Evolution States.

A single Bat Type Roidmude amplified his chosen emotion to achieve a Over Evolved State, joining the Promised Number.

One Bat Type Roidmude achieved evolution through unnatural means.

Some Bat Type Rodimudes seems able to used additional body part weapon, the common weapon is a large gatling gun type firearm.

Powers and Abilities

Heavy Acceleration
The signature ability of the Roidmude is to somehow slow down the movement of surrounding objects', including that of humans, with their unaffected consciousness aware of their impass during this time. One can be protected by the Heavy Acceleration effect by carrying Shift Cars or Signal Bikes on their person.
Energy Attack
Plain Roidmudes all have machine-gun-like fingers from which they can fire energy bullets. This feature is forsaken for greater power upon evolution into an Advanced Roidmude.
Advanced Camouflage
Roidmudes can generate disguises through film-layers around their body that function similar to the cerebral cortex.
Data Mimicry
Roidmudes can transform their bodies into data to travel within the electricity/cyberspace while in their Core modes. They can as well temporarily morph their bodies into data to easily phase through solid objects.
Bat Type Plain Roidmudes have the power to form wings from their back, allowing them to fly. This feature is forsaken for greater power upon evolution into an Advanced Roidmude.
Motif Powers
Certain Plain Roidmudes can use abilities or powers that eventually become an important part of their evolution.

Viral Cores


Bat Viral Core

Bat Viral Core (バットバイラルコア Batto Bairaru Koa): A Viral Core that can evolve Bat Typed Roidmudes.

KRDr-Viral Chaserbat

Chaser Bat Viral Core

Chaser Bat Viral Core (チェイサーバットバイラルコア Chiesā Batto Bairaru Koa): An enhanced Viral Core that summons the E-Circular and turns Mashin Chaser into his Tune Chaser Bat form, equipping him with the crossbow-like Wing Sniper. When initiating Triple Tune, Chaser inserts this Core second.


  • Tune Chaser Bat: Episodes 7 & 8, Movie War Full Throttle, 15, 17
  • Triple Tune: Episodes 21 & 22


Neo Bat Viral Core

Neo Bat Viral Core (ネオバットバイラルコア Neo Batto Bairaru Koa): An advanced Bat Viral Core that can be used by a Bat Type Roidmude to combine with a human. First appears in Kamen Rider Drive Vs. the Terrifying Zunbo Ganbo Roidmude, which was used as the preview of episode 25.


Bat-Type Roidmude (071) Early Design

Concept art of Roidmude 071, a Bat Type Roidmude

The Bat Type Roidmudes were designed by Takayuki Takeya, who designed all of the Roidmudes in Kamen Rider Drive.


  • The noises the first Bat Roidmude Berserk Body makes are similar to the ones Darkwing makes. All noises the future Bat Roidmude Berserk Body made are the sounds when the Chaser Bat Viral Core is inserted into the Break Gunner.
  • This is the second Roidmude type to have its entire race eliminated.
  • This is the only Roidmude class where none of them are Kamen Riders.
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