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Icon-zenkaiger.pngThis article is about a/an ranger in Kikai Sentai Zenkaiger.

"This world is a real mess. So, this place has already been scrapped, then."
―Stacy's first words when regarding Garbage World's mess.[src]

"Don't you recognize...Your own son?"
―Stacy when revealing himself to Mobile Commander Barashitara.[src]

"I see. You're a Zenkaiger, then? Interesting."
―Stacy when Kaito revealed himself to be a Zenkaiger by accident.[src]

"Part of them? Hardly. I'm Stacy. And that's all I am."
―Stacy introducing himself to the Zenkaigers after Kaito asked if he was part of the Tojitendo.[src]

"Dark Power, Stacaesar! (暗黒のパワー, ステイシーザー! Ankoku no Pawā, Suteishīzā!)"
―Stacasear's roll call.[src]

"Dark Power! Stacaesar! To become stronger than him...I'll defeat the Zenkaigers!"
―Stacy after using the Geartozinger to become Stacasear for the first time.[src]

Stacy (ステイシー Suteishī) is a mysterious general from the Kikaitopia Dynasty Tojitendo. He is also known as the Tojitendo's demon prince and is the son of Mobile Commander Barashitara. Using the Geartozinger, he gains the ability to transform into Stacaesar (ステイシーザー Suteishīzā).

Upon meeting Yatsude Goshikida, he would adopt the alias Satoshi (サトシ Satoshi) during his interactions with her, as well as in other situations where he chooses not to have his true identity revealed.

After his initial defeat at the hands of Zenkaizer and Twokaizer, he was later repaired and given a few upgrades by Mechanic Officer Ijirude, with the upgraded form being referred to in promotional materials as Stacaesar Kyoka (ステイシーザー (強化) Suteishīzā Kyōka).[1] He would ultimately take over Hakaizer's role in protecting Worlds, but as a result of playing a role in HaKaijuOh's defeat, he was punished by Boccowaus and imprisoned by the Dynasty, only to be possessed by God.

When the god had agreed to relinquish control over Stacy's body as part of his plan to get the Zenkaigers' trust, he was finally freed from its influence. Kaito Goshikida took this opportunity to convince him to truly defect from the Tojitendo, upon which Stacy apologizes and reveals his identity to Yatsude Goshikida. Stacy then decides to redeem himself by joining the Zenkaigers' side and helping them in their final battle against Great King Boccowaus and his remaining forces.

After the God conceded defeat, Stacy became a representative of Kikaitopia, having declined to take Boccowaus's abdicated throne.



Stacy was born as the son of Barashitara and his 893rd wife, making him a Kikainoid-human hybrid. The neglect from his father, as well as the death of his mother, deeply affected Stacy emotionally, and turned him into a dark, aloof person.Tvicon.png TV STORY-No. 8-kai! Door to Door from Another World?!


Stacy is first seen as a man watching the Zenkaigers with their clean-up operation to uncover Garbage World standing up on a balcony muttering about the chances they have against the Tojitendo. Kaito Goshikida notices him and asks for a hand moving some trash but Stacy stares off into the distance. He continues watching them fall asleep thanks to Garbage World's trash waves and considers them pathetic before back-flipping off of the balcony and leaving. After the death of Great Garbage World, Barashitara laments the loss of Gomitopia only for Stacy to reveal himself from under the platform by jumping up from under it and introduces himself to his father. Tvicon.png TV STORY-No. 6-kai! Unpleasant and Mysterious Garbage Handling!

A few days later, Stacy sits in the Candy Cafe Colorful eating karinto when Kaito enters and recognizes him from the other day. Although Kaito is excited about this, Stacy shows little emotion. While the other Zenkaigers cause chaos in the kitchen, Kaito introduces himself to Stacy but the latter refuses to give his name because Stacy believes he is not important enough to justify. Kaito thinks that Stacy is a celebrity trying to downplay his fame. After Kaito starts yelling random occupations in his face, Stacy asks what is wrong with him and Kaito reveals his nature as a hero and a part-time worker, but Stacy walks away bored and telling Kaito that he makes no sense. However, when Kaito gets a call about an attack by some Kudakks, he runs past Stacy who decides to join him under the pretense of happening to go the same way. Though Kaito becomes suspicious when Stacy also follows him onto a rooftop, they soon find that the fight is over just for Stacy to find that his new "friend" is a Zenkaiger when he pulls out his Geartlinger. He then shocks the Zenkaigers when he pulls out a Sentai Gear and Geartlinger of his own dubbed the Geartozinger. Kaito demands to know how Stacy knows his parents (since they designed the Geartlingers), but he denies all knowledge and transforms and uses the Sentai Gear to create evil Gorengers. Though the Zenkaigers initially think that they are real, Kaito and Juran are smacked down and Stacy reveals that he is a gun for hire brought in by Ijirude to eliminate them. Kaito asks if he is part of the Tojitendo, Stacy denies this as he is just Stacy before ordering his evil clones into battle. After they transform, he then creates clones of the Boukengers and Magirangers; Juran tries to strike Stacy down but Gaon sabotages him due to an ongoing rivalry and self-loathing. Outnumbered, they are beaten down and are forced to retreat with the power of the Kakurangers, much to Stacy's disappointment.

Later, while Kaito and Gaon have a heart to heart on a bench, Stacy summons both the Gorengers and the Gaorangers to attack them whilst isolated as he stands on a roof. However, they hold their own until the other Zenkaigers arrive, allowing Kaito to confront Stacy for his behavior. When confronted about his species, Stacy reveals himself to be a hybrid before using his ultimate Tojiru Gear to become a Zenkaiger-like being dubbed Stacaesar. Determined to surpass his father by killing the Zenkaigers, Stacy tries to gun down Kaito but he takes cover before transforming. However, even morphed, Kaito is no match for Stacy so they jump off of the pavilion and continue fighting but the Zenkaigers defeat the Gaorangers and then the Gorengers with the Gorenger Storm. Stacy reveals himself and summons giant evil versions of Daizyuzin, GaoKing, MagiKing, and Daibouken. They blast down the Zenkaigers but Kaito remains to fight Stacy whilst the others fight the Giant Robos but they are an even match and the evil mecha tear apart JuraGaon and VrooMagine. Stacy punches down Kaito as he gawks but is then restrained as the Zenkaigers summon a massive Geartlinger Bazooka with their own gears and use the Flashman Sentai Gear as ammo. Using a move similar to the Timerangers' VolTech Bazooka, they obliterate the Giant Robos so Stacaesar unleashes almost every primary Giant Robo in Super Sentai history much to the Zenkaigers' collective horror. Tvicon.png TV STORY-No. 7-kai! The Prince of the Demon World is Short-Tempered!

Stacy proceeds to summon the remaining few Giant Robos left though he has to fight off Kaito as well. Suddenly however, the Giant Robos all collectively vanish much to even Stacy's surprise. As the Zenkaigers shrink down, Stacy is now heavily outnumbered and unable to use his weapon just to be confronted by his father and Door World. Tvicon.png TV STORY-No. 8-kai! Door to Door from Another World?!


Stacy is initially presented when the audience first sees him as a distant and disjointed individual who looks at the world from a very disconnected perspective. In actuality, Stacy is a cold and aloof half-human half-Kikainoid who is very goal-oriented and not the type to do things for personal motive. Stacy is often shown giving a long blank thousand-yard stare due to having a strong emotional disconnect. He has a short fuse, and opts to leave the vicinity of what set him off.

Stacy's entire life has been filled with isolation and strife. He harbors deep resentment to his father Barashitara due to how he had treated both him and his late mother, motivating him to go against him and grasp his own achievements with his own hands. Despite being dubbed the "Demon Prince", Stacy's half-human half-Kikainoid garners a lot of discrimination from within the Tojitendo Dynasty. He does what he thinks he has to do in order to surpass his father, and took up Ijirude's offer and the Geartozinger to combat the Zenkaigers. When initially fighting the Zenkaigers, Stacy mentions that it is nothing personal, and instead a task he was hired for. After a hostile one-to-one with Kaito and realizing the differences between his pessimism and Kaito's optimism towards their own parents, he becomes resentful of him, and made it his goal to defeat Kaito personally.

Despite his lone wolf mentality, Stacy secretly yearns for emotional support and companionship. He began to see his late mother in Yatsude Goshikida, who he would occasionally visit under the moniker "Satoshi", and warmed up considerably to the sociable Hakaizer. These interactions begin to stir Stacy's thoughts and morality, as he was saddened by having to leave Yatsude for his own goals and vendetta against Kaito, grew sad and confused at learning of Hakaizer's true identity and being turned into the cruel Hakaizer Kai, and was distraught at Bonn World summoning an apparition of his mother that turned against him. Over time he occasionally secretly assisted the Zenkaigers and World Pirates for his own reasons, though still largely sided with the Dynasty.

Once Boccowaus had discovered Stacy's betrayal which had led to the destruction of HaKaijuOh, and subsequently the loss of Hakaizer, he was beaten and ordered to be placed under arrest for committing treason, until he was possessed by a mysterious God for his own schemes and broke free from jail. From this point on, whenever the unknown entity is controlling his body, his alternate personality would be a far cry from his real personality, being far more amicable to the Zenkaigers and World Pirates. He becomes more lighthearted and friendly, and claims that he truly wants to help them in defeating the Tojitendo Dynasty, though there is a visible slyness to him. Even his attitude towards Barashitara changes, being more respectful. This particular alternate personality would no longer be displayed by Stacy himself once the God in question had agreed with the Zenkaigers to relinquish control over Stacy's body and never control his body ever again.

His experience of being possessed by the god himself had left him shaken to his very core and it was the final straw that broke his faith in everything that he had initially believed in. A combination of Kaito's sense of compassion by convincing Stacy that he would always be welcome to stay at Candy Cafe Colorful and Yatsude's act of forgiving him had given him a renewed sense of purpose, which motivated Stacy to join the Zenkaigers' side in their final battle against the Tojitendo.

In the end, Stacy had finally revealed the entirety of his true nature. He is a kindhearted and gentle boy who had been forced to endure an unfair life of suffering and misery that had been perpetuated by people who had treated him poorly. Stacy had also yearned for love and friendship so he could gain some semblance of happiness in his otherwise miserable life.


Stacaesar's insert theme is STACY THOUGHT.

"Jaban! Stacaesar!"
―Transformation announcement[src]
  • Height: 180 cm [2]
  • Weight: 120 kg
  • Speed: 80 km/h
  • Power: 1550 hp

Much like Zenkaizer, Stacaesar excels in gun-play and hand-to-hand combat and can keep up with the latter. Unlike Zenkaiser however, he is much more liberal with Sentai Gear usage, and will not refrain from using several in quick succession to overwhelm his enemies with greater numbers both on a human-sized level and a Giant Robo level.

After the revelation that the Geartozinger cannot use too many Dark Gears at once, he tones down his usage.

Powers and Abilities


  • Teleportation: Stacy is able to teleport at will.
  • Kudaitest Summoning: Being a Tojitendo General, Stacy can summon a Kudaitest at will.
  • Kikainoid Phisiology: Being a Kikainoid-Human Hybrid, Stacy has the following powers:
    • Strength: Stacy is able to overwhelm Kaito in his Zenkaiger with his bare hands as Stacaesar and knock him flat with one hit to the face.
    • Durability: Stacy as Stacaesar had an explosion occur immediately behind him but was unhurt and jumping down from a considerable height did no harm.
    • Increased Metabolism: Stacy is very fit, able to keep up with Kaito at a full sprint without getting winded.


  • Gun Proficiency: Stacy is a master with his Geartozinger, exceeding the main Zenkaigers and matching Zox.
  • Hand-to-Hand Combatant: Stacy was able to fight and defeat all five Zenkaigers with his bare hands.
  • Agility: Stacy is capable of leaping over long distances with just a thrust from his hand.
  • Tennis Proficiency: Having played tennis with his mother since childhood, Stacy is very proficient in the sport and could even defeat Tennis World in a tennis battle.


  • Geartozinger Overuse: Ijirude revealed that if one uses too many Dark Gears at once in conjunction with the Geartozinger, it will run out of energy, causing all of its summons to dissipate. Stacaeser still stayed transformed however, meaning that the energy depletion only applies to Dark Gear summons.


  • Geartozinger: Stacy's main sidearm.
    • Rapid Blast: Stacaesar can fire a barrage of yellow bullets from the tip of the Geartozinger.
    • Evil Ranger Creation: Stacy can insert a Sentai Gear into the Geartozinger to fire it and create a team of evil Sentai Rangers to fight the Zenkaigers.
    • Evil Mecha Summoning: Stacy as Stacaesar can insert an unknown Tojiru Gear into the Geartozinger and fire it to generate a massive purple wave in the city. From it emerges four massive stone pillars from which past Giant Robos emerge.
    • Caesar Ankoku Jabakugeki (シーザー暗黒邪爆撃 Shīzā Ankoku Jabakugeki, lit. Caesar Dark Shadow Blast): Stacy's signature attack and finisher as Stacaesar. After initiating the finisher of his Geartozinger, Stacy fires a blast that bursts into a large explosion on impact.
  • Dark Sentai Gears: The evil counterparts of the Sentai Gears. With his Dark Sentai Gears, Stacy summons manifestations of past Sentai teams and/or Robos to fight against the Zenkaigers.


Appearances: Zenkaiger Episodes 7-8, 12-14, 22-23

Stacaesar Kyoka

Stacaesar Kyoka (With Chest Cannon)

Stacaesar Kyoka (New Belt)

"Fe-ban! Stacaesar!"
―Transformation announcement[src]
  • Height: 180 cm [3]
  • Weight: 120 kg
  • Speed: 80 km/h
  • Power: 1550 hp

Stacaesar Kyoka (ステイシーザー (強化) Suteishīzā Kyōka) is the upgraded form of Stacaesar. In this form, he is able to summon past Sentai Rangers in their power-up forms, and is equipped with various additional pieces of arsenal through Ijirude's modifications, which vastly improve and augment his combat abilities.

Powers and Abilities


to be added


to be added


to be added


  • Geartozinger: Stacy's main sidearm.
    • Rapid Blast:Stacaesar can fire a barrage of yellow bullets from the tip of the Geartozinger.
    • Evil Ranger Creation: Stacy can insert a Sentai Gear into the Geartozinger to fire it and create a red warrior to fight the Zenkaigers.
    • Evil Mecha Summoning: Stacy as Stacaesar can insert an unknown Tojiru Gear into the Geartozinger and fire it to generate a massive purple wave in the city. From it emerges four massive stone pillars from which past Giant Robos emerge.
    • Caesar Ankoku Jabakugeki (シーザー暗黒邪爆撃 Shīzā Ankoku Jabakugeki, lit. Caesar Dark Shadow Blast): Stacy's signature attack and finisher as Stacaesar. After initiating the finisher of his Geartozinger, Stacy fires a blast that bursts into a large explosion on impact.
  • Dark Sentai Gears: The evil counterparts of the Sentai Gears. With his Dark Sentai Gears, Stacy summons manifestations of past Sentai teams and/or Robos to fight against the Zenkaigers.
  • Shield: Stacaeser's upgrade includes a red shield that becomes one of his primary weapons. It is a repainted version of the Battle Caesar Robo's Stashield, which would eventually take on the coloration of Stacaesar's shield when used by the third version of the Robo. Stacy can even toss the shield as a ranged attack, with it returning to his hand quickly.
  • Caesar Ankoku Ryuseigun (シーザー暗黒流醒群 Shīzā Ankoku Ryūseigun, lit. Caesar Dark Meteor Shower): A wrist-mounted rocket launcher on Staceaser's right arm. It could hold up to 6 rockets at a time for simultaneous fire, and after detonation more missiles are quickly prepared for launch. To fire the Ankoku Ryuseigun, Stacesar is required to unequip his shield. If the missiles do not detonate or are dismantled mid flight, they do not regenerate. Tvicon.png TV STORY-No. 26-kai! Remodeled Prince and Dark Surgeon!
  • Caesar Jaou Houkougeki (シーザー邪王砲皇撃 Shīzā Jaou Houkougeki, lit. Caesar Dark Emperor Cannon Blast); A cannon deployed from the gear symbol on Stacaeser's chest that could charge and fire powerful blasts of energy when in use.


Appearances: Zenkaiger Episodes 26-29, 32-33, 35-40, 43, 47-49, Zenkaiger G-Rosso stage show, Zenkaiger vs. Kiramager vs. Senpaiger


"Yon-Juu-Go Bang! Ba-Bang! Ba-Bang! Ba-Bang! Ba-Bang! Babababang! Zenkaizer!"
―Transformation announcement[src]
  • Height: 190 cm[4]
  • Weight: 90 kg[4]
  • Speed: 100 km/h[4]
  • Power: 1500 hp[4]

Inhabiting Kaito Goshikida's body due to actions of Inverted World, Stacy transformed into Zenkaizer to join the fight.

As with all of the Zenkaigers, Zenkaizer exceeds in gunmanship, though due to lacking a personal weapon, he also specializes in freestyle and physical hand-to-hand combat. His sole access to the Sentai Gears adds to his and the Zenkaiger's abilities. Zenkaizer would later gain the Zenryoku Zenkai Cannon, allowing him to summon Sentai Warriors for the situation at hand.

Powers and Abilities


to be added


to be added


to be added


Appearances: Zenkaiger Episodes 32

Behind the Scenes



Stacaesar and Battle Japan standing together in episode 32.

  • Stacaesar's helmet and scarf resemble the design of Battle Japan from Battle Fever J. Stacaesar also bears shoulder and chest piece designs that resemble Zenkaizer, with the circle in the middle resembling the design of a Tojirugear instead.


  • Stacaesar's name is an amalgamation of "Stacy" and "Caesar". The "Caesar" in Stacaesar's name is a counterpart to Zenkaizer's "Kaiser", as they respectively are the Latin and German words for an imperial title based on the historical figure of Julius Caesar.


to be added



Icon-zenkaiger.png Kikai Sentai Zenkaiger
Kaito Goshikida - Juran - Gaon - Magine - Vroon - Zocks Goldtsuiker - Stacy
Special-Exclusive: Zenkai Red - Flint Goldtsuiker
Transformation Devices
Transformation Gun Geartlinger (Geartozinger) - World Thief Transformation Gun Geardalinger
Sentai Gear-related
Sentai Gears (Dark Sentai Gears) - Zenkai Buckle (Twokai Buckle)
Juran Sword and Juran Shield - Gaon Claw - Magine Stick - Vroon Picker - Zenkai Tenlance - Zenryoku Zenkai Cannon
Mecha and Robos
JuranTyranno - GaonLion - MagineDragon - VroonDump - Battleship CrocoDaiOh (CrossKaiOh - CrawlingOh) - Zenryoku Eagle
Superbike Enya Rideon
Giant Robos
Zenkai Gattai ZenkaiOh (JuraGaon - VrooMagine - JuraMagine - VrooGaon - SuperJuran - SuperVroon - DonZenkaiOh) - Kaizoku Gattai TwokaiOh (TwokaiOh Ricky - TwokaiOh Cutanner - Super TwokaiOh - CrocoDai Bazooka) - Cho Zenkai Gattaiju ZenKaijuOh (ZenKaijuDrill) - Zenryoku ZenkaiOh
Secchan - Yatsude Goshikida - Isao Goshikida - Mitsuko Goshikida - Flint Goldtsuiker - TwokaiRicky - TwokaiCutanner
Legendary Sentai Rangers: Tsuyoshi Kaijo - Sokichi Banba - Tsuruhime - Doggie Kruger - Chiaki Tani - Captain Marvelous - Kairi Yano - Raptor 283 - Shou Ronpo - Juru Atsuta - Tametomo Imizu - Sena Hayami - Shiguru Oshikiri - Sayo Oharu - Takamichi Crystalia
Others: Taro Momoi
Kikaitopia Dynasty Tojitendo
Leader: Great King Boccowaus - King Potdeus
Generals: Mobile Commander Barashitara - Mechanic Officer Ijirude - Gege - Stacy - Hakaizer - Dr. Iokal
Worlds: Mushroom World - Ice World (Presski World) - Boxing World (Kickboxing World) - Sushi World - Garbage World (Recycle World) - Door World - Super Warumono World (Normal Warumono World) - Kashiwa Mochi World (Sakura Mochi World) - Noon World (Sun World, Sundial World) - Onigokko World - Snail World - Retro World - Magnet World - Invisible World (Thief World) - Love World - Kabutomushi World - Hikoboshi World (Orihime World) - Copy World - Bullfighting World - Vacances World - Manga World - Tennis World - Dried Persimmon World - Milk World - Inverted World - School World - Halloween World - Diamond World - Surprise Box World - Daikon World - Rider World - Bon World - Shougatsu World - Noodle World - Kotatsu World - Headwind World - SD World - Omikuji World - Carrot World - Sapphire World - Bat World - Beef Rib World - Match World - Traffic Light World - Theater World
Great Worlds: Great Mushroom World - Great Ice World (Great Presski World) - Great Boxing World (Great Kickboxing World) - Great Sushi World - Great Garbage World (Great Recycle World) - Great Door World - Great Kashiwa Mochi World - Great Noon World - Great Onigokko World - Great Snail World - Great Retro World - Great Magnet World - Great Invisible World (Great Thief World) - Great Love World - Great Kabutomushi World - Great Hikoboshi World - Great Copy World - Great Bullfighting World - Great Vacances World - Great Manga World - Great Tennis World - Great Persimmon World - Great Milk World - Great Inverted World - Great School World - Great Halloween World - Great Diamond World - Great Surprise Box World - Great Daikon World - Great Bon World - Great Shougatsu World - Great Noodle World - Great Kotatsu World - Great Headwind World - Great SD World - Great Omikuji World - Great Carrot World - Great Sapphire World - Great Bat World - Great Beef Rib World
Fake Zenkaigers: Fake Kaito - Fake Zocks
Grunts: Kudakks - Kudaiters - Kudaitests (New Kudaitests)
Mecha: Battle Caesar Robo (Battle Caesar Robo II - Battle Caesar Robo III) - ZenkaiOh Black JuraGaon (Black JuranTyranno - Black GaonLion) - HaKaijuOh - Ijirudestroyer IV
Others: God
Other Color Rangers
Kensaku ShiraishiMakoto JinDoggie KrugerSwan ShiratoriGou FukamiTessaiShinya TsukouchiDoctor UlshadeYayoi UlshadeAkira NijinoBudStingerShou RonpoNadaSetoStacy

Secondary Rangers
Dark Magic Knight WolzardTicketConductorYamato

Power Sets
Battle CossackDekaMasterDekaSwanWolzardGekiVioletKyoryu GrayKyoryu VioletToQ 6gouToQ 7gouZyuoh BirdZyuoh CondorSasori OrangeRyu Violet/CommanderGaisoulgRyusoul BrownStacaesar