This article is about a/an mecha in Kamen Rider Zero-One.

The Auto Drive-Type Humagear Command Weapon Giger (自立駆動型ヒューマギア統率兵器 ギーガー Jiritsu Kudō-gata Hyūmagia Tōsotsu Heiki Gigā) is a type of giant robot jointly developed by ZAIA Japan and A.I.M.S., to remotely shut down large groups of Magia in its vicinity. However, the Gigers were stolen by MetsubouJinrai.net, who repurposed them to instead transform large groups of Humagears into Trilobite Magias.


The Giger was undergoing production at the A.I.M.S. headquarters when MetsubouJinrai.net raided it. While Horobi headed to the armory, Jin broke into the hidden factory where the Gigers were being produced and used a Zetsumeriser to reprogram a single completed unit. The hacked Giger unit proceeded to partially destroy a nearby hospital and covert several of its Humagear staffs into Trilobite Magias. To combat this threat, Yua Yaiba gave the Mammoth Zetsumerisekey to Izu, who used it to create the Breaking Mammoth Progrisekey. Zero-One used the new Progrisekey to transform into Zero-One Breaking Mammoth, an older mech design created during the tenure of Korenosuke Hiden that was very similar to the Giger. With his new form, Zero-One was able to destroy the Giger.

After Horobi's temporary deactivation by Vulcan, Jin was able to somehow able to take control of several more Giger units along with an army of Trilobite Magias produced by the Ark. When Zero-One arrived and transformed into Shining Assault Hopper, the Gigers combined their attacks with Jin and were able to overwhelm Zero-One. However, Zero-One then activated Shining Assault Hopper's Shine System, which enabled him to destroy the Gigers.

The Gigers would later reappear again during the battle between MetsubouJinrai.net and ZAIA Japan to defeat MetsubouJinrai.net and Zero-One.


The Giger's design, as noted by Izu, bear a similarity to Breaking Mammoth in its armor form. Unlike Breaking Mammoth's humanoid face, the Giger's head is simplistic and features a single central eye. It doesn't display the ability to transform, and is not equipped with the Mammoth Pressers on its arms. However, it features tusk-like blades identical to Breaking Mammoth's Graingots that it can detach from its torso to wield as handheld weapons. After being reprogrammed by MetsubouJinrai.net, the Giger can produce numerous tendrils similar to those used by the Magia from its hands, which it uses to transform Humagears into Trilobite Magias.






Icon-zero-one.png Kamen Rider Zero-One
Kamen Riders
Soreo Hiden - Aruto Hiden - Isamu Fuwa - Yua Yaiba - Jin - Horobi - Ikazuchi - Naki - Gai Amatsu - Ark - S
Movie-exclusive: Soreo Hiden - S - Bell - Kamen Rider Abaddon - Leon Arkland - Kamen Rider MetsubouJinrai (Jin, Horobi, Ikazuchi & Naki)
Stageshow-exclusive: Azu - Little Assassin
Hiden Zero-One Driver - A.I.M.S. Shotriser - MetsubouJinrai Forceriser - Zetsumeriser - ZAIA Thousandriver - Cycloneriser - Raidriser - ZAIA Slashriser - Ark Driver - Hiden Zero-Two Driver - Zetsumetsu Driver - Eden Driver - Abaddoriser - MetsubouJinrai Driver
Progrisekeys - Progrise Holder - Progrisekey Connector - Hiden Risephone - Rider Models
Attache Calibur - Attache Shotgun - Attache Arrow - Breaking Mammoth - Giger - Buaruku Sabers - Authorise Buster - Assault Grip - Thousand Jacker - Progrise Hopper Blade - ZAIA Spec - Knuckle Demolition - Nihon Ookaminotsume - Claw Assault
Hiden Intelligence: Korenosuke Hiden - Soreo Hiden - Jun Fukuzoe - Sanzo Yamashita
Humagears: Izu - Shesta - Soreo Hiden - Wazu Nazotoku - Subaru - Hakase Bot - Fukkinhoukai Jiro
Legend Riders: Sougo Tokiwa - Geiz Myokoin - Woz - Tsukuyomi
Humans: Norio Uozumi - Go Sakurai - Satoshi Sakurai - Choichiro Ishizumi - Seiji Tazawa - Satō - Yuta Yomura - Isao - Shinya Owada - Ikkei Amatsu
Humagears: Mageana - Ikkan Nigiro - Anna - Mashirochan - Dr. Omigoto - Z #5 - Delmo - Love-chan - Midori
A.I.s: Zea - Zat - Ai-chan - Thouser
Ark - Horobi - Naki - Jin - Ikazuchi - Little Assassin - Azu
Monsters: Berotha Magia - Kuehne Magia - Ekal Magia - Neohi Magia - Onycho Magia - Vicarya Magia - Gaeru Magia - Mammoth Magia - Dodo Magia - Arsino Magia
Footsoldiers: Trilobite Magia - Dodo Magia Chick - Battle Magia
Other Villains:
Finis - Will
Gai Amatsu - Williamson Yotagaki
ZAIA Spec Representatives: Rentaro Tachibana - Tatsumi Arayashiki - Naoto Ichimori - Takeshi Homura - Masamitsu Yuto
Other: Daiki Kyogoku
A.I.M.S.: Isamu Fuwa - Yua Yaiba - Naki - Eida - Ono - Degawa - Shida - Eifuku - Ito
Monsters: Crushing Buffalo Raider - Splashing Whale Raider - Dynamaiting Lion Raider - Storming Penguin Raider - Scouting Panda Raider - Fighting Jackal Raider
Footsoldiers: Invading Horseshoe Crab Raiders
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