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Xu·Zain·Da[src] (ズ・ザイン・ダ, Zu Zain Da)[1], otherwise known to the police as Unidentified Lifeform #22 (未確認生命体二十二号, Mikakunin Seimeitai Nijūnigō) and B3 (B群3号, Bīgun Sangō), is the rhinoceros-themed leader of the Xu Group of Gurongi. Zain is able to assume the form of a hulking strongman with a temper to match his brawn.
History[]
Kamen Rider Kuuga[]
Soon after the Me Group's turn begins with the Xu no longer worthy to play, and when their first hideout got compromised by the police's smoke bombs, Zain starts acting on his own by attacking trucks and jabbing the drivers to death with his horn.
He overpowered Kuuga in both human and Gurongi forms when Byran intervened as Zain stole his turn. While Zain resumes his attack on large motor vehicles, Yuusuke manages to perfect his Mighty Kick to finally kill the rampaging Gurongi, breaking his horn in the process.
Kamen Rider Decade[]
World of Kuuga[]
At least one Xu·Zain·Da was part of a group of human-turned Gurongi created when they were exposed to N·Gamio·Zeda's miasma. Some were later absorbed by him in the last effort to defeat Kuuga and Decade. The remaining Gurongi died after Gamio was defeated. [Transcendence]
OOO, Den-O, All Riders: Let's Go Kamen Riders[]
He had a brief appearance as one of the monsters who captured Ankh and Momotaros.
Kamen Rider Fourze[]
Zain was one of a trio of Gurongi (with Xu·Goma·Gu and Me·Vagis·Ba) who were seen fighting Kuuga in new video footage that Tomoko Nozama found on the internet, along with other clips of past Kamen Riders, who are now known as urban legends. [Space Superiority]
Super Hero Taisen Z[]
To be added
Kamen Rider Wizard[]
Zain is destroyed by Faiz's Sparkle Cut. [Neverending Story]
Kamen Rider Revice[]
Xu-Zain-Da's head was seen in a container in a lab where his DNA was obtained and used to create the Gurongi Stamp which was in the possession of Suzu Saionji. [Kamen Rider Revice: The Mystery]
Video game appearances[]
Kamen Rider Kuuga video game[]
Xu·Zain·Da appears as a playable character in the Kamen Rider Kuuga video game.
Kamen Rider Break Joker[]

Xu·Zain·Da Break Joker card
Xu·Zain·Da appears as a playable character with other Riders and monsters in Kamen Rider Break Joker.
X Gather: The Double Impact[]

XG3-070: Xu·Zain·Da
Xu·Zain·Da appears as a playable character in the trading card game Rangers Strike.
- Card Name:
- Japanese: ズ・ザイン・ダ
- English: Xu·Zain·Da
- Card Number: XG3-070
- Rarity: Normal
- Category: Dark Alliance
Statistics[]

Xu·Zain·Da
- Height: 211 cm
- Weight: 246 kg
- Group: Xu Group
Behind the Scenes[]
Portrayal[]
Xu·Zain·Da human form is portrayed by Akira Nogami (野上 彰, Nogami Akira)
Concept Art[]

Xu·Zain·Da concept art
Xu·Zain·Da was designed by Takuya Abe (阿部 卓也, Abe Takuya).
Notes[]
- His name is based on the Japanese word for "rhinoceros" (犀, Sai).
Appearances[]
Kamen Rider Kuuga
- Episode 3: Tokyo
- Episode 4: Sprint
- Episode 6: Azure Dragon
- Episode 7: Grief
- Episode 9: Siblings
- Episode 10: Fierceness
- Episode 11: Promise
- Episode 12: Teacher
- Episode 17: Preparation
- Kamen Rider Kuuga vs. the Strong Monster Go·Jiino·Da (archive footage only)
- Episode 46.5: Kamen Rider Kuuga: First Dream of the New Year
Kamen Rider Decade
- Episode 3: Transcendence
OOO, Den-O, All Riders: Let's Go Kamen Riders
Kamen Rider Fourze
- Episode 2: Space Superiority (stock footage)
Kamen Rider Wizard
Kamen Rider × Super Sentai × Space Sheriff: Super Hero Taisen Z
- Episode 53/Finale: Neverending Story
References[]
External Links[]
- Xu·Zain·Da (Human Form) on Kamen Rider Official
- Xu·Zain·Da on Kamen Rider Official