|Guardia de Mieux|
A bizarre sorcerer with purple skin dressed in a red torn tunic with a Hexagram embroidered on the front and a purple skeleton of a demon wrapped in his body like an armor.
A bunch of eyes are attached around his body. In the TurbografX-16 / PC Engine it has tormented faces with suffering expressions around the helmet.
After Walter Smith, a professor and acquaintance of Jô Hayabusa seals off an ancient ruin in South America, Guardia de Mieux, the Jaquio appears and takes control of the ruin. Jaquio awaits Ryu Hayabusa after he sends his assassins, the Malice Four to steal the Demon Statue and break the seal on the Dark God, plunging the world into darkness. After the Malice Four steal the Shadow Statue from Ryu's father, Joe Hayabusa, Jaquio tricks Ryu into surrendering the Light statue while he prepares the ritual in front of the Demon's body in an Amazon temple. He succeeds in breaking the seal on the Demon but is defeated by Ryu and the Dragon Sword.
Ninja Gaiden II: Dark Sword of ChaosEdit
Jaquio is initially mentioned by Ashtar, who was apparently the Jaquio's boss all along through the events of the first game.
After Ashtar is defeated by the Dragon Ninja Ryu, Jaquio reveals himself somehow fully resurrected. He takes Irene hostage and grievously wounds the US Army agent, Robert T. Sturgeon. He soon meets Ryu in a demonic altar, and reveals that the energy of the spirit of the Demon flowed into his body after their last battle, resurrecting him, and giving him unfathomable evil power.
Despite his powers he is beaten by Ryu. However, his blood flowing out touches the cursed blade of the Dark Sword of Chaos, and it sucks the life out of Irene. The gates of Hell are thrown open and the revived Jaquio takes on the form of a demon. He challenges Ryu, and is once again defeated by the Dragon Ninja. After his defeat, the Sword of Chaos is destroyed and the Hell Gate is sealed, as the castle collapses.
- In the PC and the TurbografX-16 versions he's called the "Devildoer" in English
- In the OAV a flashback shows Jaquio with the Dark Sword of Chaos on his hands.
|Ryu Hayabusa - Irene Lew - Robert T. Sturgeon - Ashtar - Jaquio|
|Chaos Tribesmen: Dando - Baron Spider - Funky Dynamite - Naga Sotuva|
Ashtar - Kelbeross - Jaquio - The Demon
|Locations and stages|
| Act I: 1-1 - 1-2|
Act II: 2-1 - 2-2 - 2-3
Act III: 3-1 - 3-2 - 3-3
Act IV: 4-1 - 4-2 - 4-3
Act V: 5-1 - 5-2 - 5-3
Act VI: 6-1 - 6-2 - 6-3
Act VII: 7-1 - 7-2 - 7-3- 7-4 - 7-5
USA - Tower of Lahja - Underworld
|Items, weapons and equipment|
|Dragon Sword - Shuriken - Windmill Shuriken |
Art of the Fire Wheel - Art of Fire Dragon Balls - Invincible Fire Wheel - Shadow Clone Technique
Scroll of the Spirit of the Dragon
|Concepts, organizations, and other|
|Demons - Ninpo - Chaos Tribesmen|