This article is about a/an villain form used by several identities in Kamen Rider Build.

Night Rogue (ナイトローグ Naito Rōgu), previously known to Build as simply the Bat Man (蝙蝠男 Kōmori Otoko), is a Transteam System transformation assumed by the following characters:



Night Rogue's first appearance.

Taking the Transteam Gun and Bat Fullbottle, Gentoku Himuro first became Night Rogue as he founded Faust in Namba Heavy Industries Ltd.' secret laboratory. Prologue: NIGHT ROGUE RISES

In his vague memory of being exposed to Nebula Gas in an experiment conducted by Faust, the amnesiac Sento Kiryu recalled the sight of Night Rogue, who he refered to as the "Bat Man". In the form of Night Rogue, Gentoku observed Sento from afar as he helped the fugitive Ryuga Banjo to escape from Touto's forces. That One with the Best Match

In a video filmed for FausTube, Gentoku demonstrated the transformation into Night Rogue, as well as the Transteam System's arsenal. Night Rogue Chapter


KRBu-Night Rogue
"Bat! Mistmatch! Bat...Ba-Bat... Fire!"
―Transformation announcement[src]
  • Height: 197.5 cm.
  • Weight: 103.0 kg.

Ability Perimeters:

  • Punching power: 17.2 t.
  • Kicking power: 20.5 t.
  • Maximum jump height: 49.0 m.
  • Maximum running speed: 100 m. per 4.1 sec.

Like Blood Stalk, Night Rogue's form is accessed with the Transteam Gun and the Bat Fullbottle.

Night Rogue seems to possess a degree of steam manipulation as he can turn himself into steam to quickly travel long distances or to summon his Steam Blade. Night Rogue is also shown to be able to fly as well as stand upside down by using his feet to somehow cling to ceilings like a real bat. He can also execute an electrified Rider Punch-esque attack where his fist glows blue with electric energy and hits the target.

Unlike Build, Night Rogue's Ability Perimeters are not spread out between his arms and legs. While Night Rogue gets power from only one Fullbottle, he's much stronger than Build's Trial Forms and his stats even surpass some of Build's Best Matches. He is also able to overpower Blood Stalk in one-on-one combat, despite having marginally lower stats.

With the Steam Blade or the Steam Rifle, he can use the following attacks:

  • Elek Steam (エレキスチーム Ereki Suchīmu): Night Rogue shoots electricity at the enemy.
  • Ice Steam (アイススチーム Aisu Suchīmu): Night Rogue performs a series of icy slashes at the enemy causing them to freeze.
  • Devil Steam (デビルスチーム Debiru Suchīmu): Night Rogue fires a "steam" bullet which will home in on the target and inject them with an unknown compound when it hits them. When used on a human, the person will turn into a Smash. When used on a Smash, the Smash will grow to gigantic proportions.

Night Rogue has 4 finishers:

  • Transtream Gun finishers:
    • Steam Break (スチームブレイク Suchīmu Bureiku): Night Rogue channels the powers of a Faust Fullbottle and performs a powerful blast attack.
      • Bat:
    • Steam Attack (スチームアタック Suchīmu Atakku): Night Rogue channels the powers of a normal Fullbottle and performs a powerful blast attack.
  • Steam Rifle finishers:
    • Steam Shot (スチームショット Suchīmu Shotto): Night Rogue channels the powers of a Faust Fullbottle and performs a powerful steam blast attack.
      • Bat:
    • Steam Attack (スチームアタック Suchīmu Atakku): Night Rogue channels the powers of a normal Fullbottle and performs a powerful steam blast attack.

Appearances: ROGUE Episode 1, Build Episodes 1-7, Transformation Lessons: Night Rogue Chapter, Build 8-13, 15-16, 20, Raising the Hazard Level ~7 Best Matches~ ("First Chapter", "Final Chapter")




  • Steam Blade - Standard sidearm weapon. Can combine with the Transteam Gun to form the Steam Rifle.

Behind the scenes


Both Night Rogues are portrayed by suit actor Jun Watanabe (渡辺 淳 Watanabe Jun).


  • Night Rogue's undersuit inexplicably changes from black to brown in later episodes, especially during fighting scenes. Although, this is likely due to them using two versions of the suit as seen in episode 19 where the suit briefly turns back to normal in one scene.
    • Similarly, the Kaisers, who share the undersuit with Rogue, use the black undersuit in the Movie War film, but appear with the brown undersuit in the series.


See Also


Sento Kiryu - Ryuga Banjo - Kazumi Sawatari - Gentoku Himuro - Evolto - Nariaki Utsumi - Shinobu Katsuragi - Kengo Ino - Killbas
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
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
Hazard Level - Project Build - Sky Wall - Nebula Gas
nascita: Misora Isurugi - Soichi Isurugi - Sawa Takigawa - Kazumi Sawatari - Gentoku Himuro
Prime Ministers: Taizan Himuro (Touto) - Yoshiko Tajimi (Hokuto) - Masakuni Mido (Seito)
Namba Heavy Industries Ltd.: Juzaburo Namba - Nariaki Utsumi - Guardian
Hell Bro's: Fu Washio - Rai Washio
Aliens: Vernage - Evolto
Gentoku Himuro - Evolto - Nariaki Utsumi - Takumi Katsuragi - Shingo Kuwata - Eita Kawai
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 Gohara - Evolto - Killbas