- Name: Atlantis (アトランティス)
- Classification: Akuma Chojin
- Homeland: Great Barrier Reef, Australia
- Age: 24
- Height: 178 cm
- Weight: 94 kg
- Chojin Kyodo: 1,450,000 Power
- Trademark Techniques: Water Magnum, Mt. Saint Helens Eruption
- First Appearance: Seven Akuma Chojin Arc
- Seiyu: Kazuhiko Kishino
Atlantis (アトランティス) was an Archerfish-like choujin who had mental control over liquid and became stronger when he fought underwater. He first fought Robin Mask and gained the upper hand, killing his opponent when he lured Robin underwater by throwing Meat's body part into the lake on which the ring floated. He did a number on Kinnikuman as well, but ultimately Kin defeated him. He was one of the choujin to escape from Hell and be retrieved by Omegaman Dexia.
- One of the 7 Devil Choujins
- Win/Loss Record
- Water Magnum (ウォーターマグナム)
- An Archerfish-like high-pressure water cannon from his mouth.
- Water Ball (ウォーターボール)
- Atlantis chucks a ball made out of water at his foe.
- Atlantis Driver (アトランティスドライバー)
- A Pile Driver that is performed underwater.
- Devil Necromancy Blood Bind (悪魔霊術血縛り Akuma Reijutsu Chi Shibari)
- The blood of the fallen Devil Chojin (Stereo Cassette King, Black Hole, The Mountain, and Mister Khamen) on Kinnikuman's body cause their spirits to revive and hold him in place while Atlantis attacks him.
- Mt. Saint Helens Eruption (水芸セントヘレンズ大噴火 Mizugei Sento Herenzu Dai Funka)
- Atlantis places the foe in a chokehold and squeezes hard until blood squirts out of their forehead, causing them to die from blood loss. It's changed to water in the anime, and their death is caused by dehydration instead.
- Atlantis Mist (アトランティスミスト)
- Atlantis spreads his arms and a mist covers the arena. Atlantis can use this to launch sneak attacks on the foe.
- Neck Cut Drop Kick (ネックカットドロップキック)
- Tower Bridge (タワーブリッジ)
- An imitation of Robin Mask's signature backbreaker technique done out of respect.
|Leaders||Satan • Akuma Shogun|
|Seven Akuma Chojin||Buffaloman • Springman • Atlantis • The Mountain • Mister Khamen • Black Hole • Stereo Cassette King|
|Six Akuma Knights||Asuraman • Sunshine • The Ninja • Junkman • Planetman • Sneagator|
|Demon Seed||Voltman • The Tattooman • Meltdown • Gepparland • The Constellation|
|Asura Clan||Asuraman's Father • Asuraman's Mother • Ivonne • Shiva • Samson|
|Omega Centauri's Six Spears||Omegaman Aristera • Hailman • Pirateman • Gear Master • Mariquitaman • Lunaight|
|Others||Puripuriman • Sneagator Jr. • Maxman • Check Mate • Rex King|
|Related articles||Chojin Blood Bind • Makai • Cursed Dolls • Magic Square Ring • Demon Seed • Demon Womb|