Monsters with a bat motif.

Along with the Spider Monsters, Bat Monsters are a common recurring enemy unit in a Kamen Rider series, appearing once every season typically.

Bat Monsters


Main article: Bat-Type Roidmude

Bat is one of three types of the 108 Low-Class Roidmudes.

Low-Class Roidmudes

A total of 38 Bat-Types existed among the 108 Roidmudes.


A total of five Bat-Type Roidmudes transformed into a Giant Roidmude 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.

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