MOMO Mizrahi
MOMO (age 15) in Xenosaga Episode III

100-Series Realian
100-Series Prototype
Ma belle pêche (by Albedo)
14 (I, II)
15 (III)
(appears biologically 12)
T.C. 4753
Proto Merkabah
Hair color
Eye color
Voice actor (Japanese)
Rumi Shishido
Voice actor (English)
Sherry Lynn (I)
Christina Puccelli (II, III)
Brittney Karbowski (anime)
I'm not a tool that you can just use!
—MOMO to Margulis

MOMO Mizrahi, also stylized as M.O.M.O. (Multiple Observative Mimetic Organicus), is a major playable character in the Xenosaga series.

Background Edit

MOMO is the prototype 100-Series Realian created by Joachim Mizrahi and Juli Mizrahi before the Miltian Conflict in the year 4753. Joachim programmed her data on Miltia, and this data was sent to Proto Merkabah where she was born. MOMO possesses the important Y-Data as a repository, which several groups desire because it has key to Miltia where the Zohar is; Miltia was lost in the Abyss after the Miltian Conflict.

MOMO's father Joachim passed before her birth. Her "mother" (Juli Mizrahi) is reluctant to accept her as her daughter due to her being modeled after Sakura Mizrahi, the late daughter of the Mizrahis. Unfortunately, Juli can't help but see MOMO as an imitation of Sakura.

MOMO was created to act as a link between Sakura's mind and the world so that Sakura could communicate. However, when Sakura died, Joachim changed his focus. Instead, Joachim was hoping to resurrect Sakura's consciousness within MOMO.

Personality Edit


Sakura Mizrahi, MOMO's basis.

MOMO was installed with the same personality as the child she was created to represent. Her creator, Joachim Mizrahi, was devastated by the loss of his daughter, Sakura, and created a new model of Realian with a physical appearance similar to that of his late daughter. The 100-Series Observational Realian became a popular model, but MOMO remained unique to others by being the prototype. Most of the others have a standard Realian personality, but MOMO's retains certain aspects of Sakura.


MOMO loves Bunnie.

She's kind, loving, and cares about those around her. Ziggy says MOMO has a "pure heart" and that is why he is able to believe in her. She's soft-spoken with her small voice, but determined when it counts. Her Realian abilities give her increased intelligence, and she often carries the air of someone much older than she looks. Despite being the youngest member of the main Xenosaga cast, MOMO carries an aura of impressionable maturity and wisdom. She's fiercely loyal to her friends, and she is willing to sacrifice herself for their well-being. At times, she does revert to the young pre-teen girl she was modeled after, being perky and giggly when she's having fun. MOMO has an affection towards Bunnie, like Sakura once did.

In contrast to Ziggy, MOMO wishes to be human. MOMO doesn't like being referred to as a Realian because Realians were discriminated against after the Miltian Conflict. As such, MOMO is ashamed of being a Realian. She acknowledges that she's different and will use her abilities when they can help, but she desperately just wants to be a normal girl. She hates being called by her model designation (100-Series Observational Realian) and wants people to call her by the acronym for her scientific name (MOMO) because it sounds more like a normal human name. She will make small, innocent jokes about what she is to lighten situations or to keep people from worrying about her, since her young appearance makes her seem much more fragile than Realians actually are, but she likes having people treat her like everyone else.


"Soon you will be born into this world. And once you arrive, you must do many good deeds. If you do, you can become human... You can become my Sakura."

Xenosaga Episode I: Der Wille zur MachtEdit


MOMO (age 14) in Episode I.

MOMO is first seen on Pleroma as the prisoner of Margulis and the U-TIC Organization. There, she resides in a cell where Margulis addresses her as "100-Series Realian" to which she replies that she does not like that name. Margulis tells MOMO that he is interested in her Y-Data, which her refers to by, "We'd like to have a word with the man you have hidden inside of you."

Ziggurat 8 later arrives and rescues her after defeating the guards that patrol her cell, and MOMO reveals her name to him, stating that it is what her "daddy" called her. They later take shelter in a room to avoid being seen by the guards, and MOMO gives him the name Ziggy, stating that it is more suitable for a real human, in contrast to his model number.

Margulis boss fight

Margulis boss fight

Ziggy and MOMO fight Margulis.

While attempting to escape from Pleroma, MOMO and Ziggy encounter some A.G.W.S. units. MOMO then uses her Hilbert Effect ability to destroy their external sensors, but is weakened in the process due to the cross interference that it caused. Ziggy then defeats the A.G.W.S. units with MOMO's help and they proceed to escape the planet. However, when they are almost at the ship, Margulis confronts them and they battle. In the commotion that the fight causes, MOMO and Ziggy escape Pleroma, but are followed by many of the U-TIC ships.

Aboard the Elsa, Shion Uzuki, Allen Ridgeley, chaos, and the others aboard the ship notice the battle in hyperspace. Ziggy's ship then gets shot down, and, believing that they are going to die, apologizes to MOMO about not keeping her safe. MOMO replies that it is fine, and thanks him for everything he has done for her. Ziggy then asks her if she is afraid, to which MOMO replies that she is a little scared, but is okay due to his being there. The Elsa then catches the falling ship at the last moment and, after some commotion, brings them inside. There, Shion, chaos, and KOS-MOS meet up with each other and introduce themselves before stopping the Auto-Tech invasion. They then meet up with the rest of the crew where MOMO and Ziggy properly thank them for the rescue.

While the crew is eating dinner on the ship, Tony finds out that it was, in fact, MOMO who was piloting the ship instead of Ziggy. Shion then notices MOMO's uniform and asks if she is from the Mizrahi Lab, to which she replies that she is and introduces herself as an Observational Realian. Captain Matthews then asks where the two are headed, and they ask them to take them to Second Miltia.


MOMO doing maintenance on Ziggy.

When the Elsa stops at the Dock Colony to repair their ship, Andrew Cherenkov is injured by some "street punks." Seeing that he is injured, MOMO attempts to cure him, but to MOMO's disappointment, refuses, claiming that he is "not a big fan" of nanosurgery. Ziggy then asks her to give him a tune-up, and soon reveals that he is comfortable with her looking him over because of the purity of her heart.

Later, the crew boards the Durandal where Jr. allows them to view the Zohar Emulators. In the conversation regarding Joachim Mizrahi, Jr. describes him as a "lunatic" who invited the Gnosis into the galaxy, leaving the rest of the people to pay for his ambitions. An upset MOMO silently walks out on this and leaves the room, saying to herself, "Daddy... Daddy wasn't like that." and wants to believe her father wasn't a lunatic. MOMO, who thought of Mizrahi as a parent, thought she too was being rejected, herself. MOMO wondered, if she was brought into the world by someone who was socially unaccepted, does that mean that she too should be unaccepted? MOMO anguished over her reason for existence, and worried that her creation was a mistake. Due precisely to the fact that she couldn't talk directly with her father, her own inner-image of him wavered when others provided information.


MOMO having an existential crisis.

Shion later finds MOMO in the Durandal's park, pondering over the meaning of her Realian existence. Shion comforts MOMO by telling her her belief that even though Realians are man-made, they function as though they have existed all along, and that Joachim Mizrahi was probably not the evil person that everyone makes him out to be. Shion told MOMO that not all of Dr. Mizrahi's research was unacceptable to mankind. Through those words, MOMO was able to cling to the hope that her own existence wasn't unacceptable. Thinking that everything about her father was unacceptable, MOMO considered herself, who was brought into the world by her father, was also unacceptable. But with the thought that there may have been even the slightest facet of her father accepted, MOMO was able to put her mind at ease by considering that her existence might also be acceptable. What Shion says makes MOMO feel better, and she returns to her normal kind and joyful attitude.

Later, Jr. meets up with MOMO and gives her a good luck charm (a bullet) with the inscription "Sayonara, baby!" on it and uses a mysterious power to turn it into a bracelet. MOMO delights in how pretty it is, and thanks him.

Joachim Mizrahi's Sermon

Joachim Mizrahi's Sermon

MOMO sees Dr. Mizrahi in the Encephalon.

Soon after, the Kukai Foundation is placed under arrest due to wrongful accusation of conspiring with the Miltian government on an attack on the Galaxy Federation. A group of Federation soldiers board the Durandal; one of them grabs MOMO, and Jr., afraid of MOMO getting hurt, escapes the custody of one of the soldiers, only to get knocked to the ground. Later, MOMO dives into KOS-MOS' Encephalon to get KOS-MOS' AAA data and sees her father dying from the top of Labyrinthos. This causes MOMO to become upset and cries, and Jr. comforts her.

Xenosaga Episode I HD Cutscene 115 - MOMO is Missing! - ENGLISH

Xenosaga Episode I HD Cutscene 115 - MOMO is Missing! - ENGLISH

MOMO is kidnapped by Albedo.

During an attack on the Kukai Foundation by the Gnosis, MOMO volunteers to help with the evacuation. However, she believes she sees her "father" walk away from her, and follows him into an alleyway. There, Albedo Piazzolla catches MOMO and brings her back to the Song of Nephilim. Once at the Song, Albedo intimidates MOMO, hoping for her to faint so he can easily get the Y-Data, a mysterious amount of data placed into MOMO's mind by Joachim Mizrahi, MOMO's creator. At the Song, he murders all of his Kirschwassers and tosses them in his chambers.

Xenosaga I - Ma Belle Pêche

Xenosaga I - Ma Belle Pêche

Albedo psychologically torturing MOMO.

MOMO finds him sitting comfortably on his "throne", cradling the body of a slain Kirschwasser in his hands, before he snaps one of its arms effortlessly and tosses it aside. To intimidate MOMO, he uses a small knife to saw off his own arm (edited from the English-language version and made to look as if he rips it off), which he then regenerates. He then decapitates himself, lets his severed head taunt MOMO, and finally crushes his head underneath one foot before regenerating that too. Albedo is greatly amused by the fact that MOMO wants Rubedo (Jr.) to come and save her. Once MOMO lost consciousness, Albedo began to absorb her mind, learning every thought and memory that MOMO ever had. He continues to absorb her mind until he is interrupted by Jr. and his group.


M.O.M.O cries as Albedo absorbs her mind.

The Truth Hidden Within MOMO

The Truth Hidden Within MOMO

Albedo extracts part of the Y-Data from MOMO.

Once they show up, Albedo taunts them, and finally takes part of the Y-Data from MOMO, showing him that Shion and KOS-MOS are somehow involved with it; at this moment it appears he gains knowledge of Shion's previous incarnation identity, as well as of KOS-MOS true identity. He climbs back into his E.S. Simeon and fights the group. Once they defeat Albedo, however, he gets out of the E.S. Simeon and shoots a blue aura at Jr., who retaliates with a red one. Their fight is interrupted by Luis Virgil, the Blue Testament. Virgil insists that Albedo get his job done, and stop playing around with Jr.'s group. Albedo leaves the Song of Nephilim in his E.S. Simeon while Virgil fights Jr.'s group.

Once Jr. and MOMO's group escaped the Song of Nephilim and boarded the Durandal, they tried to destroy the Song, but were in shock when their blast deflected off of it. Albedo re-enters the scene in his E.S. Simeon, and summons Proto Merkabah, a large space station that was once home to Joachim Mizrahi and MOMO, using the knowledge he had gained from MOMO's memories. The Song of Nephilim enters a port of Proto Merkabah to help power it, and several Gnosis are absorbed to use an energy source. He uses this station to blow up the entire Galaxy Federation fleet of ships. He sets his next target to nearby planet Second Miltia. However, Jr. tells him to wait before he blows up Second Miltia, so that he can get to Albedo and finish the conflict once and for all.

Xenosaga Episode I HD Cutscene 130 - Mizrahi's Abomination - ENGLISH

Xenosaga Episode I HD Cutscene 130 - Mizrahi's Abomination - ENGLISH

MOMO wonders if she's an abomination who should have never been born.

Jr. and his group board Proto Merkabah. MOMO calls the Proto Merkabah an "abominable machine", and wonders if she's an abomination. Shion tries to convince MOMO that no parent would think of their own child as an abomination.

The group reaches Albedo in the core room, and he shows the group his will, a shining power that exists within everyone. His, however, was very bright and large. Albedo reminds Jr. of what he did to his comrades during the conflict when he 'broke the link', showing a brief scene of Jr. holding his head with an aura around him that sends the standard U.R.T.V. units flying. This differs from the events stated in Episode II but it was most likely due to the change in story writer. He fights Jr. and the others personally, but he is defeated after a battle. He reveals to the group his motive: To make Jr. pay for abandoning him and the other U.R.T.V.s fourteen years ago.

Albedo then reveals Sophie Peithos, a fusion of Proto Merkabah's core and the Gnosis absorbed by the space station. Albedo leaves Jr. to fight this massive beast, and returns to his E.S. Simeon in space. He watches from afar as the space colony plunges toward Second Miltia on a crash course, due to Sophie Peithos' defeat. He watches as the group escapes on the Elsa, and Proto Merkabah self-destructs.

Xenosaga Episode II: Jenseits von Gut und BöseEdit


MOMO in Episode II.

On Second Miltia, on the way to Juli Mizrahi to return MOMO Mizrahi, Jr., MOMO, Ziggy, and chaos are chased by U-TIC operatives wishing to capture MOMO once again. However, the attacks are thwarted.

Albedo's Trap

Albedo's Trap

MOMO's maintenance is interrupted.

At the U.M.N. Control Center on Second Miltia, MOMO meets her mother who is reluctant to accept her. She is also given a new outfit. Juli wants to examine the Y-Data. However, the Y-Data examination process goes horribly wrong when a trap (implanted into her by Albedo when they were at the Song of Nephilim) is activated. MOMO is almost killed.

Xenosaga Episode II HD Cutscene 33 - Hang on, MOMO! - ENGLISH

Xenosaga Episode II HD Cutscene 33 - Hang on, MOMO! - ENGLISH

MOMO in an unresponsive catatonia.

In an effort to save MOMO, everyone dives into her Encephalon (subconscious domain). It turns out that MOMO and Sakura share the same subconscious domain. During the dive, Albedo gets ahold of the Y-Data from MOMO and uses it to recover the hidden planet, Miltia: the place where the Miltian Conflict occurred, and where U-DO and the original Zohar reside.

MOMO is eventually rescued, thanks to the efforts of Shion and her team. When the path to Old Miltia opens, Juli allows MOMO to go due to her skills, and hopes MOMO will safely return. Juli also admits that part of her doesn't want to let MOMO go, and she has come to understand that MOMO and Sakura are different. When MOMO returns, Juli wants to know MOMO better.

Throughout the game, MOMO pilots E.S. Zebulun with Ziggy.


Juli accepts MOMO as family.

After speaking with Ziggy, Juli's view of MOMO began to change. Ziggy suggested that Juli not see MOMO as an attempt to replace her daughter, but rather as a second daughter. Juli began to open up more to MOMO after that point and began to realize that she was indeed her own unique person and not just a copy of Sakura.

After the events in Xenosaga Episode II, Juli decided to live with MOMO and accepted her role as her mother, with Ziggy on standby should a crisis arise.

Xenosaga Episode III: Also sprach ZarathustraEdit

Xenosaga III HD Cutscene 161 - Joachim and MOMO (Labyrinthos) - ENGLISH - REGULAR MODE

Xenosaga III HD Cutscene 161 - Joachim and MOMO (Labyrinthos) - ENGLISH - REGULAR MODE

MOMO meets her father for the first time.

MOMO returns as a playable support character, but has extremely minimal effect on the plot. She still pilots Zebulun with Ziggy.

In Shion's subconscious, MOMO meets Joachim Mizrahi during a trek in Labyrinthos, and gains some closure on her father.

In the ending, she works with Scientia to construct a new non-U.M.N. network. She tells Jr. to say "hello" to Albedo. She waits patiently for Shion's return from her search for Lost Jerusalem.

Etymology and influencesEdit

In Japanese, "momo" means peach or peach blossom. Sakura is Japanese for cherry blossom. Furthermore, the series of Realians that were originally based on Sakura's form and used to create MOMO are known as "Kirschwassers". 'Kirschwasser' is a German word for cherry brandy (Literally, "cherry water").

Albedo calls MOMO "ma belle pêche" which is French for "my beautiful peach". He also calls her a "mechanical angel", and "the flower that bloomed from ninety-nine corpses".

Mizrahi is a reference to the Mizrahi Jews.

In Xenosaga Episode I, MOMO seems to have been designed as an homage to the magical girl genre. Her outfit was made to resemble a futuristic Japanese schoolgirl's uniform, her weapons appear as magical rods and later as an Ether-based composite bow, and among her Ether skills is the ability to transform into a more powerful version of herself, complete with a colorful costume. When she transforms, it is accompanied by a henshin sequence. Even her name may be a pun on one of the early magical girl shows, Minky Momo or, indeed Namco's own Wonder Momo, and, referring back to her influence, Sakura, from Cardcaptor Sakura. Also, her transformation sequences seem to be similar to Sailor Moon.

Abilities Edit


MOMO using the Hilbert Effect in Episode I.

The 100-Series Observational Realian was developed as a recon unit capable of detecting Gnosis that may not be seen by normal means. As such, MOMO's abilities include increased observational skills such as detection of lifesigns, use of Ether powers and spells, directly connecting to the U.M.N. (basically using something akin to telepathy to connect to her world's Internet), and using the Hilbert Effect. The Hilbert Effect has the ability of pulling multi-dimensional beings into the same plane as the user, enabling physical contact between the two beings. Ether is used through nanomachines implanted in the body to help with increasing healing in herself or others, attacking others, and shielding against various types of attacks. MOMO's strengths lie in defensive and healing Ethers, but her attacks are stronger than one might expect because of her origins as a Realian. She also carries a bit of Sakura with her in her affinity for music.

Transformation Ethers Edit



MOMO's Ethers.

MOMO has access to transformation Ethers in Xenosaga Episode I which are called Star Wind and Starlight, but they must be found first. They use 10 EP points, can last 3 turns, and have special abilities. Both of them have their own sets of different spells and when the spell is used, all her attributes are slightly risen.


MOMO's costumes.


Starlight, power up!

Star Wind provides her with a blue remake of her costume. It is very similar to her original outfit but each individual piece of clothing is different, including her hair piece, with now an aquamarine color. Star Wind is found in the Cathedral Ship with MOMO as the lead character.

  • The special Tech that comes with it is called Magic Caster which steals a rare item from a boss. It seems like her wand turns into a fishing rod and she throws the line. When it flashes a picture of her eyes, it means she got the item and pulls back the line, including the item which looks like a present. It is a far range Tech.

Starlight is her second transformation spell. This costume is very extravagant. Her hair ornaments are different again and she wears the beautiful top and skirt, along with a giant bow on her back. This costume is a flaming red and orange. Starlight is found in the Song of Nephilim with MOMO as the lead character.

  • Her special Tech for this ether is called MOMO's Kiss. She makes an outline of her face and a giant version of her head appears in front of her. She then whacks it and sends it hurtling through the enemy. This is a far range Tech.



MOMO's cyber bow in Episode II.

In Episode I, MOMO's weapons are short metal rods with mystical powers. The rods can be used to hit the enemies and have the ability to shoot some sort of musical or petal themed laser beams at the enemies.

In Episode II and Episode III, MOMO has discarded the magical rods and replaced them with an Ether-Based Composite Bow. This causes all her attacks to become long range. MOMO's Ether Bow in Episode II bears the name "LEGOLAS" on its surface (a reference to Legolas Greenleaf from Lord of the Rings).

MOMO starts with her ether bow again in Episode III; this time the name of this default weapon is Compound VI.

Tech Attacks Edit

List of Episode I Tech Attacks
Skill Level Description Speed/Wait
Star Strike Default Strike with a small star 150/10
Floral Tempest Default Slash with knife-like wind 150/10
Meteor Storm 15 Attack from another dimension 200/10
Star Cannon 20 Strike with a large star 600/30
Angel Arrow 24 Attack with arrows of light 600/30
Dark Scepter Turn Gnosis-Type enemies into items if used to defeat them 350/20
Magic Caster Steal rare item (During Star Wind transformation) 200/20
MOMO's Kiss MOMO beam (During Star Wind transformation) 300/30

Dark Scepter is obtained by defeating Mintia. Objects created by finishing off Gnosis with Dark Scepter:

  • Emerald - Unicorn, Wyrm
  • Garnet - Drone G1, Drone G3, Goblin, Kobold, Manticore
  • Ruby - Basilisk, Bugbear, Cerberus, Golem
  • Sapphire - Fairy, Hydra
  • Diamond - Gigas
  • Hemlock - Lizardman
  • Frame Repair A - Ogre
  • Frame Repair Z - Troll
  • Skill Upgrade Z - Armaros
  • Holey Gloves - Delphyne


Battle quotes

  • "I'm not a tool that you can just use!" (to Margulis during the boss fight)
  • "Here you go!"
  • "I feel more like a combat model these days."
  • "I'm gonna try hard for everyone!"
  • "I'm gonna do my best!"
  • "Mystic powers, grant me a miracle!"
  • "Bullseye!"

Cutscene quotes

  • "I don't like that name." (to Margulis when he calls her "100-Series Observational Realian")
  • "I never got to meet Daddy, but he used to talk to me all the time before I was born. It's all a little hazy, but I remember him telling me that I could become a real person if I did good deeds."
  • "Why doesn't Mommy ever want to see me?"
  • "If a lot of people died because of my birth, does that mean I'm an abomination as well, just like Daddy?"
  • "Why do you hurt people? My sisters... they all loved something they saw in you. And even after all that you put them through, they still believed in you... how... how could you desecrate their feelings?! Their hearts!" (to Albedo)
  • "Tell me! Please, Kirschwasser! Are these actions really of your own will? Do you honestly want to destroy Second Miltia? Is it your will that so many people die!?" (in the anime)
  • "But that's my... She's not just... Kirschwasser is my sister." (in the anime)
  • "Allow me to introduce myself. I am the 100-Series Observational Unit Prototype, designation: MOMO."
  • "Artificial... emotion? My heart is... just an optional function?"
  • "Shion... what is that!? It's horrible!" (seeing Cecily and Cathe)



MOMO in her Kirschwasser outfit.

  • In Xenosaga Episode I: Reloaded, MOMO can unlock a Kirschwasser outfit. It can be found during the Song of Nephilim section. While playing through this section, make your way into the third tower. In here, you should be able to find and unlock the Kirschwasser outfit.
  • According to the database in Xenosaga Episode III, MOMO's third appearance is made finalized by a transgenic-type Realian, which are Realians that are half-humans. Due to the having the mix of human genes in her body, MOMO is possibly capable of aging into an older woman, and potentially conceive a child, making MOMO a unique entity of a Realian.
Ambush in the City

Ambush in the City

MOMO driving in Second Miltia.

  • In Episode II, MOMO exhibits impressive driving skills, possibly due to being an Observational Realian.
  • In Episode III, if the player is idle with MOMO, she will do a dance.[1]
  • Despite that MOMO is 14/15 years old in the series, she still peculiarly refers to the Mizrahis as "mommy" and "daddy" in a childish way. The reason behind this is never explained - it could be part of MOMO's programming or just a habit.
  • MOMO appears with Shion and KOS-MOS in Namco × Capcom, in their appearances from Episode I. MOMO forms a single unit along with Shion, and supports her with her abilities.[2]
  • MOMO appears in Super Robot Taisen OG Saga: Endless Frontier EXCEED with KOS-MOS, this time in her Episode III outfit. Unlike KOS-MOS, who is a player character, MOMO is a supporting unit, using her bow and Star Wind transformation from Episode I to assist in attacks.


Xenosaga Episode I: Der Wille zur Macht Edit

Xenosaga Freaks Edit

Xenosaga DS

Xenosaga: The Animation Edit

Xenosaga Episode II: Jenseits von Gut und Böse Edit

Xenosaga Episode III: Also sprach Zarathustra Edit

Cameos Edit

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