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 Low-Class 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 Advanced Roidmude form.

Through data stolen from the Roidmudes through a currently unknown source, Megahex created a force of Mecha Roidmudes, mechanical and numberless recreations of the Low-Class Roidmudes, to combat the Kamen Riders that stood in his way of assimilating Earth and its inhabitants. What surviving members of these Mecha Roidmude 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


A total of five Bat-Type Roidmudes transformed into a Roidmude Berserk Body through the use of their corresponding Viral Cores. In addition, one Bat-Type Roidmude was enlargedIcon-crosswiki by the YokaiIcon-crosswiki page, Kyuemon IzayoiIcon-crosswiki.

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 Super Evolution State, joining the Promised Number.

One Bat-Type Roidmude achieved evolution through unnatural means.


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
Low-Class 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 Low-Class 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 Low-Class 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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