Youma is the generic term for a 'monster
of the day' created by the Dark Kingdom. None of them
from the television series were given names, nor in
official publications, like in other Tokusatsu. Youma,
loosely, translates to bewitching demon. There was no
consistent form they were summoned, most of them just
appeared, some were created from stones.
ACT 1
This translucent youma possessed Naru's mother in order
to steal energy, which led Usagi to transform into Sailor
Moon for the first time. She used her 'Moon Healing
Escalation' from her Moonlight Stick to remove the youma
from her friend's mother.
ACTS 2 & 20
Jadeite transforms a statue of a human and dog into two
Youma. They drain energy from students in a cram school
Ami was attending. The humonoid Youma pretends to be
Ami's teacher to steal her energy. Sailor destroys one
youma with her Moon Twilight Flash and the other is
destroyed by Sailor Mercury's Mercury Aqua Mist. The
humanoid Youma appears again in Act 20 to tease and
distract Rei.
ACTS 3 & 20
This propeller-themed Youma pulled girls through a door to another
dimension to drain their energy. It concerntrated on wind
attacks. Rei and Usagi are pulled into the dimension.
Sailor Mars destroys the Youma using her Youma Taisan
attack. He appears again in Act 20 to tease and distract
Rei.
ACTS 4 & 20
Nephrite turns a plant into a Youma to possess a Jewel
owner at a party. Sailor Moon uses Youma Taisan, but the
Youma splits into two. One attacks her while the other
runs after Mercury. Once Sailor Moon transform, the two
Youma split split into a third one. Sailor Moon, Mercury,
and Mars use their three attacks to destroy the three
Youma. The yellow one appears in Act 20 to tease and
distract Rei.
ACTS 5 & 20
Nephrite tells this Youma to search for the Silver
Crystal and snatches a pendant from a woman, thinking it
is the Silver Crystal. It bounces around quickly place to
place, hence hard to catch. She also says bouncing
sounds. Sailor Moon and Sailor Mars use a combine force
of Moon Twilight Flash and Youma Taisan to destroy it.
She appears again in Act 20 and teases Sailor Moon.
ACT 6
This youma takes over the body of Takeru, a popular boy
among the girls. It makes statues out of his female
victims and Jadeite keeps them in a dimension to steal
their energy. It had the ability to wrap its snake-like
whip around people's necks. It had the ability to put a
spell over women. Sailor Jupiter destroys it with her
Supreme Thunder. It seems to be inspired by Gorgons.
ACTS 7 & 20
This ninja-like straw man first fought Sailor Moon at
night. He leaves a decoy for others to hit. He possess
Takai, Motoki's friend and Rei's date on a triple date to
steal Rei's energy. Remembering her previous fight with
this Youma, Sailor Moon waits until Jupiter has destroyed
the decoy and then turns and sends her attack at the real
Youma to destroy it. He appears in Act 20 to tease Sailor
Moon.
ACTS 10 & 20
The papers of Zoisite's Requiem swirl together to form a
Youma. She sings an accompaniment to his music. Youma's
song grows stronger the Princess of Estoa faints. The
Youma attacks by singing multicolored musical notes.
Sailor Moon destroys it with a combination of her
Moonlight Stick and her crystal's energy. This Youma
appears again in Act 20 and teases Sailor Moon.
ACT 12
This Youma possesses Minako's manager Sugao Saitou, in
aims to find the Silver Crystal. It can wrap vines from
its hands. It binds Minako and she breaks free from him.
The Youma separates from Saitou's body and Sailor Moon
tries to use her Moon Tiara Boomerang, but the Youma just
knocks it aside. The Youma manages to trap the three
Senshi. Sailor Moon destroys the Youma with her Moon
Twilight Flash.
ACT 13
A schoolgirl named Ayumi is slowly turned into a
Ying-Yang Youma by Kunzite. Sailor Moon is reluctant to
attack because she doesn't want to harm the innocent
person inside. Luna tells her to believe in her power,
because she has no choice. Sailor Moon apologizes to the
Youma and uses Moon Healing Escalation to turn Ayumi back
to normal. Kunzite blows on the hair and it wraps around
Sailor Moon's neck that might have turned her into a
similar Youma but Usagi's power was too strong.