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Aliens (Japanese: 宇宙人 Uchūjin) are interstellar creatures that come from outer space, rarely appearing in the Yo-kai Watch series.

They notably play a bigger role in the Y School Heroes series, acting as the main antagonistic faction and conflict. Mazera is known to be the leader of one of the most known and widespread aliens, which range from canine creatures to human vessels corrupted with Mazera's mind-bending powers.

List of Known Aliens[]

Minor Aliens[]

Alien (Japanese: 宇宙人 Uchūjin) Appearance Y Medal
Alien
Alien
Alien Dog
Alien Dog
Alien Beasts
AlienBeastGroup
AlienBeastMedal
Alien Crow
Alien Raven
Crowman
Alien Raven Fusion
Wan in Black
WanInBlack
Ten in Black
TenInBlack1
TenInBlack2
Inu Tokumeitai
Doggy Special Task Force
Usuke
Usuke
Uki Shogun
Uki Shogun
Bunny Army
BunnyArmy
Hojiro Sameki
Hojiro Sameki
Female Titron resident
TidasWife
Tidas' Son
TidasSon
Dober Vader
Dober Vader Artwork
Annan
Ozero

Major Aliens[]

Alien (Japanese: 宇宙人 Uchūjin) Appearance Y Medal
Nayu Kuruhoshi
NayuKuruhoshiArtwork
NayuKuruMedal
Nayu Kuruhoshi Stray Medal-0
NayuYMedal
Black Army
Black Army Member
Big Black
Black Army Giant
BigBlackMedal
Grey Agent
Grey Agent
GreyAgentMedal
Big Black 2
Big Black 2
BigBlackMedal
Rigel
Rigel
RigelMedal
Rigel HG
Rigel HG
Dober
Dober
DoberuMedal
Mazera
Mazera
MazeraMedal
Elzemekia
Elzemekia Art
EruzemekiaMedal
Pit Bull
PitBullArtwork
DG Trooper
DGTrooperArtwork
Zodiaraia
Zodiaraia Artwork
ZodaraiaMedal
Amami Elna & Zodiaraia Y Medal
Black Demon
Black Demon Artwork
Tidas
Tidas Artwork
Elze
ElzeArtwork
Mazera Titan
Mazera Titan
Mazera Bolt
Mazera Bolt Artwork

Dog Aliens[]

Alien (Japanese: 宇宙人 Uchūjin) Appearance Y Medal
Dober
Dober
DoberuMedal
Pit Bull
PitBullArtwork
DG Trooper
DGTrooperArtwork
Wan in Black
WanInBlack
Ten in Black
TenInBlack1
TenInBlack2
Inu Tokumeitai
Doggy Special Task Force
Dober Vader
Dober Vader Artwork

Trivia[]

  • It is unknown if the aliens have a connection with the Members of the Mikakunin Tribe, despite sharing similar appearances and having a similar UFO design to the one Mazera's force uses.
  • Akihiro Hino was inspired by the 1989 video game Last Armageddon when he made the Aliens as the main antagonists of the Y School Heroes series. He also wanted to make the player fight something that the player doesn't come across normally in another dimension.[1]
  • Despite typically referred to as "Uchūjin" in the Japanese anime, Aliens can also be referred to as  "Eirian" (エイリアン), or "Seijin" (星人).
  • Despite being framed as the main antagonistic faction of the Y School Heroes series, multiple of the aliens have joined forces with the YSP Club, the most notable being Nayu Kuruhoshi.
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