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Icon-faiz.png This article is about a rider form used by several identities in Kamen Rider 555.

Kamen Rider Kaixa

Kamen Rider Kaixa (仮面ライダーカイザ, Kamen Raidā Kaiza, Masked Rider Kaixa) is a fictional suit of high-tech power armor seen in Kamen Rider 555.


Kaixa Gear history

The Kaixa Gear was the third set of Kamen Rider Gear developed by the Smart Brain Corporation to protect the Orphnoch King. The Kaixa Gear was more powerful but slower than the Faiz Gear. It still did not match the Delta Gear for speed or strength but possessed greater functionality. Its power came at a price: while all of Smart Brain's Rider Gears were intended for Orphnochs only, the Kaixa Gear is the only set that will kill any users who drained all their Orphnoch DNA after donning it.

Its first known wearer is Kouta Takamiya, but the belt destroyed him when he burned up all of his implanted Orphnoch DNA. Two more Ryuseiji members were forced to use the power of Kaixa to protect the others from Smart Brain and paid for it with their lives. The suit's primary wearer is Masato Kusaka, who had a great deal more Orphnoch DNA implanted into him, but it began to run out near the end of the series. A weakened Kusaka had his belt taken by Kiba. After recovering his faith in humanity, Kiba as Kaixa joined Takumi and Mihara in battling the fully awakened King, but the Kaixa Gear was destroyed in battle.

Other known wearers include Kiyotaka Nishida, Takashi, and Saeko Kageyama (Lobster Orphnoch).

In Paradise Lost, Masato uses the Kaixa Gear to destroy several Orphnochs in the city, later fighting Leo as Psyga at the human's "base" of Paradise, but he loses the belt and is killed. Keitaro then manages to use the Kaixa Gear after two doses of Professor Nomura's "Transform One-Shot" serum, defeating the Lion Orphnoch before the belt disintegrates, Nomura admitting that his invention only works "for one-shot".

Kamen Rider Kaixa

Kamen Rider Kaixa

Kamen Rider Kaixa

―Transformation announcement[src]

Rider Statistics

  • Rider Height: 189 cm.[1]
  • Rider Weight: 95 kg.[1]

Rider Senses:

Ability Parameters:

  • Punching Power: 3 t.[1]
  • Kicking Power: 7 t.[1]
  • Maximum Jump Height: 30 m.[1]
  • Maximum Running Speed: 100 m. per 6.3 sec.[1]

Special Attacks:[4]

Once transformation is completed, the Kaixa Armor has several key features in its design to protect protection to the user. Like all gear, the Kaixa armor manifests when the Kaixa Driver generates Photon Blood, a glowing substance generates the soft Sol Foam suit, Sol Metal armor, and Fullmetal Lung chest armor via traveling through the two yellow Photon Streams lines that gives Kaixa "greater strength at the cost of speed". The steams end at the Photon Terminals at the gauntlets and Power Anklet greaves, the right Anklet having a Energy Holster that the Kaixa Pointer can be connected it. The helmet is unique due to its Global Feeler antenna to link up to Smart Brain's networks and the X Finder visor that gives Kaixa incredible vision to see in darkness, giving the illusion of a glowing eye, and a limited amount of x-ray vision.

Appearances: 555 Episodes 13-17, 21-35, 37-48, Decade Episodes 1-2, 4-5, 31 (Special Version),Masked Rider LIVE & SHOW, Let's Go Kamen Riders, Kamen Rider Taisen feat. Super Sentai , Special Event, Heisei Generations FOREVER (as a toy), Geiz Majesty.


Legend Rider Devices

KamenRide: Kaixa

"KamenRide: Kaixa"
―Diendriver summoning announcement[src]

Kaixa Side Basshar

"AttackRide: Side Basshar!"
―Decadriver announcement[src]
  • AttackRide: Kaixa Side Basshar (アタックライドカイザサイドバッシャー, Attakuraido Kaiza Saido Basshā): Transforms the Machine Decader into the Side Basshar in Battle Mode.

Kaixa Ring

This Rider Ring which bears the likeness of Kamen Rider Kaixa is exclusive to Kamen Rider Wizard's Wizard Ring toyline. When used by a Wizardriver wearer, it would be able to summon Kamen Rider Kaixa.

"(Digital beeping) Kaixa!"
―Activation announcement[src]

"The transformation code is 9・1・3! Faiz's rival Rider is... Kaixa! (変身コードは9・1・3!ファイズのライバルライダーは…カイザだ!, Henshin kōdo wa 9・1・3! Faizu no raibaru Raidā wa… Kaiza da!)"
―Secondary activation announcement[src]

"(Right-hand Ridewatch's announcement)! Armor Time! Standing By...Complete! Kaixa!"
―Transformation announcement in the Ziku-Driver's left-hand slot[src]

"Finish Time! Exceed Time (Break/Burst)!"
―Finisher announcement in left-hand slot[src]

Kaixa Ridewatch (カイザライドウォッチ, Kaixa Raido Wotchi): Based on Kamen Rider Kaixa, this Ridewatch would provide access to the KaixaArmor.


Other Names

There is much confusion surrounding the Rider's name, as his design is based on the Greek letter Chi (Χ), and people have often mispronounce it as the Japanese kana "chi". The Greek letter Chi is actually pronounced "kie", as the Greek letter system originated in Europe, not Asia, so while there is a similar name and Romanization spelling, the pronunciation is entirely different.

The official transliteration is "Kaixa", although some would argue that the pronunciation is closer to "Kaiza" due to the katakana used. Other variations in his name include the following:

  • Kamen Rider Kaiza
  • Kamen Rider Kaiser
  • Kamen Rider 913
  • Kamen Rider Chi


  1. 1.0 1.1 1.2 1.3 1.4 1.5 TV Asahi. (2003). Kamen Rider Kaixa.
  2. 2.0 2.1 2.2 Kamen Rider Official Data/Perfect File.
  3. 3.0 3.1 Tokuma Shoten. (2003). Masked Rider Faiz 1. p. 7, 10, 15, 17. ISBN 978-4197605378.
  4. https://www.kamen-rider-official.com/zukan/forms
  5. Shogakukan. (2003). Masked Rider 555: Complete Works. First Volume. p. 16, 31. ISBN 978-4091014917.
  6. Shogakukan. (2004). Masked Rider 555: Complete Works. Second Volume. p. 17, 23. ISBN 978-4091014955.

External Links


Icon-faiz.png Kamen Rider 555
Kamen Riders
Kamen Rider Faiz: Takumi Inui - Yuji Kiba - Akai - Naoya Kaido - Itsuro Takuma - Masato Kusaka
Kamen Rider Kaixa: Masato Kusaka - Kouta Takamiya - Kiyotaka Nishida - Takahisa Shindo - Saeko Kageyama - Yuji Kiba - Keitaro Kikuchi (Paradise Lost) - Higashino (Manga) - Nishijima (manga) - Mayu (manga) - Kaixa Corps (manga) - Nozomi Munemiya (manga)
Kamen Rider Delta: Shuji Mihara - Saya Kimura - Kitazaki - Masato Kusaka - Takumi Inui - Rina Abe - Kyouji Murakami - Kyosuke Tokumoto - Ken Arai - Yuki Kawachi - Kikyou Nonomura (manga)
Riotrooper - Leo - Yuji Kiba
Stageshow-exclusive: Kamen Rider Alpha - Kamen Rider Beta - Kamen Rider Gamma - Dark Rider - Dark Slasher
Rider Arsenal
Mission Memories - Smart Pad
Faiz (Φ): Faiz Driver - Faiz Phone - Faiz Pointer- Faiz Shot - Faiz Edge - Faiz Axel - Faiz Blaster - Faiz Sounder
Kaixa (Χ): Kaixa Driver - Kaixa Phone - Kaixa Pointer - Kaixa Blaygun - Kaixa Shot
Delta (Δ): Delta Driver - Delta Phone - Delta Mover
Riotroopers (O): Smart Buckle - Axelaygun - Flying Attacker (Decade)
Psyga (Ψ): Psyga Driver - Psyga Phone - Psyga Tonfa Edge - Flying Attacker
Orga (Ω): Orga Driver - Orga Phone - Orga Stlanzer
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Hanagata - Masuda - Saya Kimura - Rina Abe - Kyosuke Tokumoto - Syoji Inukai - Kiyotaka Nishida - Takahisa Shindo - Haruko Kamijyo - Kouta Takamiya - Asami Ito - Ken Arai - Yuki Kawachi - Shingo Ota
Smart Brain
Wirepullers of Smart Brain
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Decade-exclusive: Tiger