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侍ノ弐 Sengoku Astray Gundam

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The 侍ノ弐 Sengoku Astray Gundam (戦国アストレイ頑駄無 Sengoku Asutorei Gandamu?) is a mobile suit appearing in the anime series Gundam Build Fighters. Based on the MBF-P02 Gundam Astray Red Frame, the Gunpla is built and controlled by Nils Nielsen.

Technology & Combat Characteristics

Based on the MBF-P02 Gundam Astray Red Frame that appeared in the Gundam SEED Astray series, the Gunpla is built by Nils Nielsen and embodies his preference to his Japanese heritage. Aesthetically, it greatly resembles a samurai, with an enlarged V-fin that is modeled after the Crest-horn and additional facial scrupling that is modeled after a men. The Red Frame's original faceplate is hidden underneath this extra plating and can be revealed if the extra plate is destroyed. The unit is armed with two swords and a shield, and has been uparmored, with the new shoulder armor containing a pair of hidden arms. The shoulder armor also has thrusters located at the back. In the hands of Nils, an expert on both Japanese martial arts and anti-particle research, Sengoku Astray can launch Sword-Ki (刀氣) attacks in addition to cutting through beam attacks and particle barrier. The unit also has a special melee attack, the ‘Particle Fa Jin', that allows it to destroy an opponent from within.


  • Samurai Sword
The Sengoku Astray's primary weapons, they are called Kiku-ichimonji and Kotetsu. By swinging the swords, the Sengoku Astray can launch Sword-Ki attacks made of Plavsky Particles, giving it some form of ranged attack capability. This attack is strong enough to split the beam cannon-like blast fired from Tallgeese Valkyrie's Mega Beam Cannon. The Samurai Swords can also be used to block beam attacks and due to the particle alteration coating applied on the blades, the Sengoku Astray can easily cut through particle-based attacks and barriers. The Samurai Swords can also be used as throwing weapons, and they are stored on top of the shoulders when not in use.
  • Oni No Tate
A shield in the form of a demon face, it is normally mounted on the Sengoku Astray's back to provide rear protection. The shield is dismounted from the back when additional frontal protection is required, such as when the suit is faced with heavy frontal attacks. This rarely happens as Nils prefers to use the Samurai Swords for both defense and offense. The "eyes" of the shield can function as thrusters.
  • Radome Yo-Yo
A weapon given to the Sengoku Astray at random during the Original Weapon Battle. The Sengoku Astray wraps the yo-yo's string around the Dreissen's neck before plucking it to emit an electric shock that knocks out its opponent.
  • Axe
An axe that is used by Sengoku Astray against the Mocks, it can also be used as a throwing weapon.
  • Hammer
Another weapon used against the Mocks, this hammer has three thrusters located at the back of its head. When the thrusters are activated, they increase the hammer's power and allow it to easily disperse multiple enemies.

Special Equipment and Features

Built by Nils for the Gunpla Race segment of the Gunpla World Tournament, it is a horse-like support unit originated from Mobile Fighter G Gundam. The Sengoku Astray rides on top of it during the race.
  • Sengoku Yoroi
Sengoku Yoroi refers to the new armor parts on the shoulders (which can also be referred to seperately as 'Kata Yoroi') and around the knees that Nils created for the Sengoku Astray. They are meant to remedy the lack of armor on the normal Gundam Astray Red Frame. The armor placement takes into account Nils's battling style and are fitted in areas where the suit is likely to get hit. The black shoulder side armor can also transform into a pair of arms that can hold the Samurai Swords, or be used to perform the 'Particle Fa Jin' attack.
  • Particle Alteration Coating
A special coating that Nils applied on the Samurai Swords' blades. This coating changes the swords' Plavsky Particle band based on the direction of the blades, allowing them to cut through beams. The coating can also allow the sword's Plavsky Particle band to match the Battle Field's control particle band, granting the Sengoku Astray the ability to cut through particle-based barrier. However, this coating can also be a double-edged sword, as during the battle with Star Build Strike, the particle band was transformed by the acceleration from the Build Knuckle attack and this caused the blades to break as they were not adjusted to the new particle band.

Special Attacks

  • Particle Fa Jin
A melee attack derived from Chinese martial arts, it allows the Sengoku Astray to send its own Plavsky Particles into the opponent’s Gunpla and destroy it from within. However, the Particle Fa Jin can be stopped if the Plavsky Particles cannot flow through. This attack can be performed using the main arms or the hidden arms.


For the history of the Sengoku Astray Gundam, go to Nils Nielsen's page.



  • "侍ノ弐" means Samurai Unit 2 in Japanese, keeping in touch with the Musha Gundam theme of the suit.
  • Unlike typical names and model number, Astray uses Kanji and Hiragana (Japanese names) instead of katakana and romaji (English names)
  • Like the MBF-P02Kai Gundam Astray Red Frame Kai, the two Samurai Swords carried the Japanese name of "菊一文字" and "虎徹". There are two ways to translate them: 1) Hiragana translation: "Kiku-ichimonji" and "Kotetsu" and 2) Literal Translation: "Gerbera Straight" and "Tiger Pierce". The latter names are used for the official translation of Gundam Astray Red Frame Kai's Katanas. It was unknown what Nil actually calls his swords, but there are some unconfirmed speculations that Nils, in keeping with his naming conventions, registered the weapons with Kanji and Hiragana naming.
  • Sengoku Astray Gundam's design is very much like Kamen Rider Gaim's Kachidoki Arms as they both have a similar head and shoulder armor design. It should be noted that Gaim is a homage to the Destroy Gundam and Psyco Gundam.
  • The optional axe and hammer used by Sengoku Astray Gundam can be found as part of the HGBC Matsuri Weapon model set.
  • The method which Sangoku Astray using the Radome Yo-Yo to defeat a AMX-009 Dreissen is likely an homage to how Shamisen no Yuji from the 1981 TV series Shin Hissatsu Shigotonin kills various enemies.

External links

侍ノ弐 Sengoku Astray Gundam


Build Fighters  +

Fixed Armaments

Samurai Sword + , Oni No Tate + , -Kiku-ichimonji + , -Kotetsu +

Gunpla Base

MBF-P02 Gundam Astray Red Frame +


17.9 m (58.727 ft, 704.724 in)  +


Nils Yajima +

Mechanical Designer

Junichi Akutsu  +

Model Number

侍ノ弐  +

Optional Equipments

Fuunsaiki +

Optional Handheld Armaments

Radome Yo-Yo + , Axe + , Hammer +


MBF-P02 Gundam Astray Red Frame (Descendant)  +


Nils Yajima +

Production Type

Custom  +


Gundam Build Fighters +

Special Solo Attacks

Particle Fa Jin +

Standard Equipments

Sengoku Yoroi + , Particle Alteration Coating +

Unit Type

Suit  +


Close Quarters Combat  +


58.2 t +

Has query
"Has query" is a predefined property that represents meta information (in form of a subobject) about individual queries and is provided by Semantic MediaWiki.

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Categories list

Mobile Weapons

Modification date
"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by Semantic MediaWiki.

02:59:19, 17 January 2017  +

Page has default form

Mobile Weapon Ver.2  +

hide properties that link here 

Sengoku Astray + , 侍ノ弐 Sengoku Astray +

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