Aquarius (アクエリウス Akueriusu) is a bird-like Terrible-Monster that first appeared in Ultraman Ace, episode 49.
Subtitle: Aquarius Terrible-Monster (水瓶超獣 Mizugame Chōjū)
Aquarius first appeared as a woman holding a vase. After killing Univerlages, TAC found Aquarius. After her vase was shot, the woman jumped high into the air and landed back down as a hideous Terrible-Monster. TAC quickly opened fire on her. However, the Terrible-Monster shrugged off all their attacks. Seiji Hokuto began to shoot at the ugly Terrible-Monster, only to be knocked off a cliff. Before he fell to his death, Hokuto transformed into Ultraman Ace to take on Aquarius. Ace began to engage the Terrible-Monster in a vicious battle. It seemed Ace had met his match as the Terrible-Monster assaulted Ultraman with her firecracker like blasts. Luckily, Ultraman Ace overcame the attack and began to beat down Aquarius. Ace charged energy into his foot and then kicked her in the face. Energy surged through her body as she screeched out in pain and anguish. Shortly afterward, her eyes grew dark as death overcame her. After she died, Ace buried her and paid his respect.
- Height: 54 m
- Weight: 40,000 t
- Origin: Third Star of Aquarius
- Powers and Weapons
- Energy Bolts: Aquarius can fire a deadly bolts of energy from the lily on her shoulder.
- Human Disguise: Aquarius can disguise herself as a woman, holding a vase which is a communcation device between her and Univerlages.
|Ultraman Ace Kaiju|
|Verokron | Yapool | Chameleking | Vakishim | Garan | Aribunta | Giron Man | Brocken | Alien Metron Jr. | Doragory | Muruchi II | Gammas | Zaigon | Alien Antira | Unitang | Sabotendar | Baraba | Ace Killer | King Crab | Cattle God | Cowra | She-Devil | Hotarunga | Black Pigeon | Android Couple | King Kappa | Zemistlar | Aprasar | Aprasar Fairy | Space Mask | Black Satan | Giant Yapool | Mazaron Man | Yojo | Mazarius | Alien Orion | Sphinx | Alien Hipporito | Lunaticks | Undergroundmon | Gitagitanga | Red Jack | Baktari | Coakes | Bad Baalon | Kaiteigagan | Dreamgillas | Soundgillar | Machless | Snowgiran | Namahage | Alien Fire | Firemons | Alien Steal | Kaimanda | Shishigoran | Iceron | Woo II | Fubugirara | Onidevil | Gasgegon | Daidarahoshi | Hanzagiran | Verokron II | Yapool Woman | Univerlages | Aquarius | Alien Revole | Signalion | Geegon | Alien Simon | Jumbo King|