This article is about a/an group of foot soldiers in Kamen Rider Build.

Hard Guardians (ハードガーディアン Hādo Gādian) are weaponry humanoid type robots that have been mass produced by Namba Heavy Industries Ltd.. After Namba's death, they were used by Evolto and Nariaki Utsumi.


A pair of Hard Guardians were summoned by Evolto-Ryuga Banjo alongside the Strong and Flying Clone Smash against Kamen Riders Build and Grease. Subjected to a blast from Build RabbitRabbit Form's Fullbottle Buster, one Hard Guardian was instantly destroyed while the other was propelled back at Evolto-Ryuga, who destroyed it with a single chop. Evolto Hunts Stars

At least nine Hard Guardians accompanied Nariaki Utsumi and the Hell Bro's Kaisers as they confronted Evolto on behalf of Namba within Pandora Tower. Accessing Kamen Rider Evol Black Hole Form, Evolto effortlessly destroyed the Hard Guardians in an instant by producing a massive explosion with a mere flick of his hand. Mad World

A pair of Hard Guardians were led by Kamen Rider MadRogue as he wreaked havoc at Touto's Area A before being engaged by Kamen Riders Cross-Z Magma and Grease. While MadRogue retreated in the face of Cross-Z's increasing power, the Hard Guardians were scrapped by Grease, with Cross-Z proceeding to beat their husks as he grew more and more furious before being called to his senses by Grease. Soon after, six Hard Guardians struck Area E with a Flying Clone Smash before being intercepted by Cross-Z Magma and Grease; two were destroyed alongside the Clone Smash by Cross-Z Magma's Volcanic Attack while the remaining four were wrecked by Grease's Scrap Finish. Legacy of Doubt

Numerous Hard Guardians defended Pandora Tower during Evolto's final challenge to the Kamen Riders. Channeling their full power through their respective Rider Weapons, the four Riders Build Genius, Cross-Z Magma, Grease and Rogue unleashed a burst of raw energy which instantly wiped out an assembly consisting of hundreds of Hard Guardians just outside Pandora Tower. Only minutes after, Build, Cross-Z and Rogue fought through several standard and Hard Guardians while Grease stayed behind in the lower levels to engage the fake Hokuto Three Crows. An Oath to Be The One


Hard Guardian
KRBu-Hard Guardian

Hard Guardian

  • Height: 204.8 cm
  • Weight: 239.5 kg

A heavy-duty Guardian model developed by Namba Heavy Industries Ltd.. Along with heavier armor than the standard model, a Battle A.I. unit is installed in the head. It is equipped with a gatling gun on the right arm, a shield with an integrated claw on the left arm, and a missile pod on each shoulder.

Appearances: Episode 30-32

Hard Guardian (Union State)
KRBu-Hard Guardian (Union State)

Hard Guardian (Union State)

  • Height: 744 cm
  • Weight: 33,700 kg

Multiple Hard Guardians can combine into a larger battle robot, called the Hard Guardian (Union State) (ハードガーディアン(合体状態) Hādo Gādian (Gattai Jōtai)). It can use the machine guns and missile pods of the individual Hard Guardian units and its performance is 1.5 times that of the normal Guardians' Union State.

Appearances: Episode 30

Behind the Scenes


The Hard Guardians are portrayed by various suit actors.


  • The Hard Guardian's lower torso is retooled from the biotic Smash.


See Also

Sento Kiryu (Takumi Katsuragi) - Ryuga Banjo - Kazumi Sawatari - Gentoku Himuro - Evolto - Nariaki Utsumi - Shinobu Katsuragi - Kengo Ino - Killbus - Keiji Uraga
Transformation Gear
Fullbottles - Build Driver - Transteam Gun - (Great) Cross-Z Dragon - Sclashjellies - Sclash Driver - Hazard Trigger - Nebulasteam Gun - Cross-Z Magma Knuckle - Evol-Driver - Evol-Trigger - Grease Blizzard Knuckle - Killbuspider - Grease Perfect Kingdom
Drill Crusher - Hawk Gatlinger - 4Koma Ninpoutou - Kaizoku Hassyar - Fullbottle Buster - Steam Blade - Beat Closer - Twin Breaker - Muscle Glove - Solstall Wings - Giant Scratcher - Space Ride Arm - Spine Knuckle - Long Range Cleaner - Trash Converter - Gold Lio Gauntlet - Multi Deluge Gun
Pandora Box - Halfbodies - Fullbottle Holder - Build Phone
Vortex Finish - Hazard Level - Project Build - Sky Wall - Nebula Gas
nascita: Misora Isurugi - Soichi Isurugi - Sawa Takigawa - Kazumi Sawatari - Gentoku Himuro
Kamen Riders: Eiji Hino - Gentaro Kisaragi - Kouta Kazuraba - Takeru Tenkuji - Emu Hojo - Hiiro Kagami - Taiga Hanaya - Kiriya Kujo - Kuroto Dan - Parado - Sougo Tokiwa - Geiz Myokoin - Tsukuyomi
Prime Ministers: Taizan Himuro (Touto) - Yoshiko Tajimi (Hokuto) - Masakuni Mido (Seito)
Namba Heavy Industries Ltd.: Juzaburo Namba - Nariaki Utsumi - Haruhiko Wanibuchi - Guardian
Hell Bro's: Fu Washio - Rai Washio - Yoshikazu Takahashi - Norio Matsui
Aliens: Vernage
Gentoku Himuro - Evolto - Nariaki Utsumi - Takumi Katsuragi - Shingo Kuwata - Eita Kawai - Yoshikazu Takahashi - Norio Matsui
Touto: Needle Smash - Strong Smash - Burn Smash - Flying Smash - Mirage Smash - Square Smash - Press Smash - Ice Smash - Stretch Smash
Hokuto: Castle Hard Smash - Stag Hard Smash - Owl Hard Smash
Kaiser: Kaisei Mogami (World of Ex-Aid)
Kengo Ino - Ryoka Saiga - Mitsuomi Gobara - Evolto - Killbus
Keiji Uraga - Simon Marcus (Phantom Crusher)
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