Xenosaga Episode I
Xenosaga Episode II
Xenosaga Episode III
Xenosaga: Pied Piper


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Ziggurat 8
Jan Sauer
XSF Encyclopedia picture Ziggy.png
Episode I artwork
Species Cyborg
Human (Pied Piper)
Gender Male
Age 130
131 (Episode III)
30 (Pied Piper)
Height 191 cm
Weight 162 kg
Japanese VA Masashi Ebara
English VA Richard Epcar
Appearances Xenosaga Episode I
Xenosaga Episode II
Xenosaga Episode III
Xenosaga Freaks
Xenosaga I & II
Xenosaga: Pied Piper
Xenosaga Outer File
Xenosaga: The Animation

Ziggurat 8, nicknamed Ziggy (ジギー), originally known as Jan Sauer (ジャン・ザウアー), is a playable character in the Xenosaga series.

Appearance and personality[edit]

Ziggy is an average man with blond hair that is swept back and blue eyes. Ziggy wears a collared blue battle suit with red and white accents that leaves his chest exposed. His right arm and legs are completely cybernetic. In Episode II, with the Swimsuit skill equipped, Ziggy wears a black wetsuit with green trims with goggles and snorkel. In Episode III, his swimsuit consists of blue briefs and tops with green trims and goggles and snorkel.

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Story arc[edit]

Pied Piper[edit]

As a human, Ziggy's name was Jan Sauer. He lived on the planet Abraxas and was a captain for the Archon police. His father was also a policeman, but due to his missions he spent very little time with Jan. Jan's father would die in the line of duty while he was a child, but this didn't stop Jan from pursuing the same career. He led a team of individuals including Lactis, Melisse, Erich and Mikhail, as well as their combat support Robot Bugs. Their biggest investigation involved the cyber terrorist Voyager. Jan led multiple operations trying to save the victims of Voyager and try and capture him. Eventually, his commanding officer, McCallum pulls him off to instead provide security for a U.M.N. party held between the Galaxy Federation and Immigrant Fleet. However, Voyager's activities impact the party and he continues his investigation. As his investigation finds out more about Voyager and his political connections, including with Dmitri Yuriev, the investigation is shut down by his superiors. Jan decides to keep pursuing it however.

As part of the investigation Jan meets Sharon Rozas, a doctor working at the Galaxy Police Hospital. As the investigation continues and she helps him several times, Jan starts forming a relationship with her. He also meets her son Joaquin and befriends him. Jan and Sharon are eventually married. With his investigation stopped, Jan is arrested by forces working for Dmitri Yuriev, but he is able to escape along with his subordinates. He continues to pursue and investigate Voyager, even getting involved with the anti-U.M.N. group Veritas. Eventually, it is discovered that Jan's own subordinate Erich is Voyager. Jan has a final confrontation with Voyager after Voyager interferes with an Immigrant Fleet Pilgrimage Council and kidnaps Sharon and Joaquin. Sharon and Joaquin are killed by Voyager right in front of Jan. Jan battles Voyager, including after Voyager has been made the Black Testament by Wilhelm. Voyager is now too strong for Jan to defeat. Voyager tells Jan he has the choice of either becoming a Testament as well or being killed by him. Jan chooses neither and instead kills himself.


Ziggy, whose full name is Ziggurat 8. is a combat cyborg created by Ziggurat Industries. While he committed suicide, due to being an organ donor, his body was donated to science and he was resurrected as a cyborg. In this state, he was equipped with a safety mechanism preventing him from being able to hurt himself or abandon any mission he had been tasked with. Due to the Species Preservation Act, the practice of developing and upgrading cyborgs was ceased, making him among the last of such models in existence. Ziggy's goal is to have any remaining human components of his body replaced by mechanical parts, eliminating his humanity entirely. This is in stark contrast to present day Realians who are seeking more human rights.

Episode I[edit]

Ziggy is recruited by the Subcommittee on Close Encounters due to his high mission success rate. He is asked to take part in a mission to rescue MOMO from the U-TIC Organization. Considering himself to have no rights, he feels he has no choice but to accept the mission but requests that in exchange any neural memories in his brain from his previous life be eliminated. Ziggy is briefed further on the mission by Juli Mizrahi, then heads to Pleroma, the U-TIC base where MOMO is being held. Ziggy initially has a stealth cloak that makes him invisible, but it malfunctions and he has to sneak his way through the base. He is eventually able to find a key that enables him to release MOMO from her cell. When they meet MOMO provides him the nickname Ziggy, saying his full name Ziggurat 8 sounds more like a model number. Ziggy goes under this name for the rest of the series. This causes him to flash back to when he was human and provided his stepson with an artificial dog named Nexus 6 which his son nicknamed Nex.

Ziggy and MOMO make their way through the base and try to escape but must first confront Margulis along the way. Ziggy is able to activate a detonator that provides enough of a distraction for them to flee on a ship. The two of them are chased by U-TIC's forces and meet up with the Elsa, boarding the ship. There they meet Shion and the others and are able to fight off U-TIC. While Ziggy initially tries to keep their destination a secret, he relents and they tell them of their goal to head to Second Miltia.

Ziggy and MOMO remain aboard the Elsa with Shion and the others and are party members the rest of the game. Ziggy slowly becomes more comfortable with MOMO including letting her work on maintenance for his body. When in the Cathedral Ship, Cherenkov's transformation into a gnosis reminds Ziggy of something similar from his past. When the party travels into the Encephalon to recover records from KOS-MOS that will clear the Kukai Foundation from being framed, Ziggy is transported along with MOMO and Junior to the war-torn streets of Old Miltia during the Miltian Conflict. When MOMO is captured by Albedo and brought to the Song of Nephilim Ziggy seeks to rescue her on his own and tries to talk Junior out of doing the same before they agree to do it together. At the end of the game Ziggy is able to grab a hold of KOS-MOS and lift her into the Elsa as it escapes from the collapsing Proto Merkabah.

Episode II[edit]

Ziggy arrives on Second Miltia with the others and reports to Juli Mizrahi, telling her MOMO is looking forward to seeing her. Junior asks him if he's considered transferring to a carbon-based body and he declines, saying he doesn't want to extend his lifespan. Ziggy accompanies Junior, chaos and MOMO as they depart and are chased through the city by Richard and Hermann. Juli later checks in on Ziggy at the U.M.N. Control Center at MOMO's request. They talk about Juli's difficulties in interacting with MOMO. Ziggy tells her about his son, who died in an accident and that he committed suicide because of it. Juli says she pondered doing the same. Ziggy suggests that she imagined she had two daughters, with one of them still being alive.

Ziggy accompanies the other members of the party into the Subconscious Domain. After Albedo uses the Y-Data to open up the path to Old Miltia, Ziggy joins Elsa and travels there along with the others, heading through the Ormus Stronghold along the way. At the Ω System, Ziggy recognizes the Black Testament, calling him Voyager. He fires at him, but the projectiles instead are directed towards him, damaging him. He still has enough power to punch through a wall so the group can escape onto the Elsa, saying his body can always be repaired.

Towards the end of the game Juli speaks with Ziggy again, asking him to put off making himself fully machine for a while longer and to use life extensions for his organic parts. She says this is for MOMO's sake and she wants to learn more things from him. At the end of the game Ziggy meets with Juli and MOMO, saying he has been assigned to the Kukai Foundation and can be loaned out to MOMO if necessary. He has agreed to undergo life extension.

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Episode III[edit]

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His wife and son was killed by Voyager at Archon Cathedral.

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As a playable character[edit]

Episode I[edit]

Main article: Ziggy/Gameplay (XS1)

Episode II[edit]

Main article: Ziggy/Gameplay (XS2)

Episode III[edit]

Main article: Ziggy/Gameplay (XS3)

Xenosaga I & II[edit]

Main article: Ziggy/Gameplay (XS1&2)

Xenosaga: Pied Piper[edit]

Main article: Jan/Gameplay (XSPP)


Episode I


BORN: T.C. 4637

A combat cyborg assigned the task of recovering and protecting MOMO, the 100-Series Observational Realian.

Upon his death in T.C. 4667 at the age of 30, his body was donated to science, and two years later he was reborn as a combat cyborg.

The last rank he held was captain of the 1875th Special Operations Command detachment of the Federation Police Bureau.

He is currently appropriated to the S.O.C.E. According to Federation law, upon death, an individual's body is designated as "public property", thus they are no longer able to control their own fates. Perhaps this is why Ziggy considers himself equipment owned by the S.O.C.E.

His thinking is in direct contrast to MOMO, who longs to be human. Ziggy constantly strives to turn himself completely into a machine through repeated tune-ups that eliminate his human parts, piece by piece.
His looks belie his extremely old age, and his advice gained from years of experience is both practical and precise.

His former name was Jan Sauer.

Ziggurat 8

Ziggurat Industries Cyborg version 8.0.

Since the advent of Realian technology, all effort to develop new cyborgs was abandoned, but pre-existing models continued to be upgraded.

However, with the enactment of the Species Preservation Act this practice was also stopped, making version 8.0 the last in the Ziggurat series.

Episode III


Ziggy Database Thumbnail XS3.png

Battle cyborg for the Contact Subcommittee.

After his death in the line of duty in T.C. 4667 at the age of 30, his remains were donated for body augmentation. He resumed his post two years later as a battle cyborg. His current posting is Contact Subcommittee member Juli Mizrahi. His name in life was Jan Sauer.

The final rank he held in life was detachment captain for the 1875th Special Ops Command. He later worked on tracking the Voyager incident with Melisse Ortus, founder of Scientia, and Lactis, a Canaan-type Realian in the special investigation unit.

During his time in the detachment unit, his and Voyager's relationship was that of superior and subordinate. Voyager sensed the loneliness in Ziggy's heart and invited him to join the Testaments, but Ziggy decisively rejected Voyager's temptations by shooting himself in the head.

It is possible that Ziggy's heart knew peace for the first time after Voyager was sent away after the destruction of Michtam. No one knows how much longer his brain will survive. However, for as long as he can, he'll do what he was unable to do before--dedicate his life to protecting those he cares about. Such was his promise to his departed friends.

Ziggurat 8

Ziggy Database Thumbnail XS3.png

The model number of Ziggy's body.

The model number of Ziggy's body and the general name for Ziggurat Industries' Type 8 model battle cyborg.

Different from the consumer models, this body was designed specifically for law enforcement use and features exceptional nerve impulse reaction speeds, resilience, and resistance to bullets. Of course, special machinery is required for its maintenance, and the upkeep costs are considerable.

Though Ziggurat Industries has long since closed their now-obsolete production lines in this era of the Galaxy Federation's Realian technology, the individual combat and defense capabilities of cyborgs still trump those of combat Realians, and Ziggurat Industries supposedly still supplies replacement parts to official organizations that continue to choose their product.

Ziggurat Type 8 models typically transfer their neural infrastructure from a Realian base body they inhabit while off-duty into their cyborg body when deployed on a mission. Ziggy, however, remains in his Type 8 body at all times out of personal preference, and does not require a Realian base body.

Jan Sauer

No image Database Thumbnail XS3.png

Captain of the detachment responsible for the suppression of Voyager.

Ziggy's name in life. Stationed in the Federation Police 1875th Special Ops Command. He departed for planet Abraxas as captain of the detachment responsible for the suppression of U.M.N. terrorist Voyager on orders for his arrest.

In T.C. 4667, he died in the line of duty while pursuing Voyager. According to reports, he shot himself in the head as the result of psychological instability brought on by the pressures of the long-term investigation.

A registered organ donor, his remains were ultimately collected by Ziggurat Industries.



Ziggy Encyclopedia Thumbnail XSF.png


T.C.4637年生まれ。百年前、連邦警察に所属していたが自殺(T.C.4667年)。その後、ライフリサイクル法によって蘇生された。戦闘用サイボーグ(Ziggurat8)として復職。現在、星団連邦政府内接触小委員会に配備され、百式観測器プロトタイプモモ」の保護、護衛の任を受けている。我を忘れそうになるJr.を制したような、老熟した経験からくるアドバイスは的確で信頼が厚い。「人間」部分である生体部品を、次々と機械部品へと交換して、人から完全なるサイボーグになろうとしている。生前の記憶さえもすべて除去することを望んでいる。生前名はジャン・ザウアー<Jan Sauer>。

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  • Ziggy is the only party member who has not changed his main appearance throughout the entire trilogy.

In other languages[edit]

Language Name Meaning
United Kingdom flag.svg English Ziggy
Japan flag.svg Japanese ジギー Ziggy
France flag.svg French Ziggy
Germany flag.svg German Ziggy
Wiki icon - Incomplete.svg This page's subject has names in other languages, but they are not yet included on this page.
You can help add them via an In other languages template.
The editor who added this tag elaborates: Ziggurat 8 and Jan Sauer


Official artwork[edit]

Xenosaga Episode I[edit]



Xenosaga Episode II[edit]


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Xenosaga Episode III[edit]

Character portraits[edit]


Pied Piper[edit]

Concept art[edit]

Xenosaga I & II[edit]

CG images[edit]

Character portraits[edit]