This article is about a/an half form in Kamen Rider Build.

The Rabbit Halfbody (ラビットハーフボディ Rabitto Hāfubodi) is a biotic A-Side Halfbody of Kamen Rider Build. Accessed through the Rabbit Fullbottle, its Best Match is the Tank Halfbody. It gives the user increased agility and speed.

In any form that uses the Rabbit Fullbottle, Build is armed with the Rabbit Foot Shoes (ラビットフットシューズ Rabitto Futto Shūzu) on his left leg for increased jumping.


  • Wild Head Armor (ワイルドヘッドアーマー Wairudo Heddo Āmā) - The red head armor. It is resilient to Smash attacks.
  • Left Eye Rabbit (レフトアイラビット Refuto Ai Rabitto) - The eyepiece. Enhances response speed and search accuracy, and a special olfactory sensor is incorporated to locate hidden enemies.
  • Ear Face Module (イヤーフェイスモジュール Iyā Feisu Mojūru) - The ‘rabbit ear’ on the Left Eye Rabbit section. Enhances Build’s sense of hearing.
  • BLD Signal (BLDシグナル BLD Shigunaru) - A data collection device located on the forehead area. It not only collects combat data, but also performs emergency repairs on the body when nesseccary. Aditionally, it can project any information holographically.
  • Wild Chest Armor (ワイルドチェストアーマー Wairudo Chesuto Āmā) - The red chest armor sections. It has enough strength to withstand the attacks of an ordinary Smash, and weight reduction technology is applied to improve agility. It can speed up any internal operations for a few seconds to temporarily boost performance.
  • BLD Rapid Shoulder (BLDラピッドショルダー BLD Rapiddo Shorudā) - The right shoulder armor. Improves arm speed.
  • Quick Rush Arm (クイックラッシュアーム Kuikku Rasshu Āmu) - The right arm. Despite it’s low punching power (compared to other Build Halfbodies), it more than makes up for it with its agility and swiftness.
  • BLD Rapid Glove (BLDラピッドグローブ BLD Rapiddo Gurōbu) - The reinforced hand. It is capable of fine and fast motion, allowing it to handle weapons.
  • BLD Unlimited Suit (BLDアンリミテッドスーツ BLD Anrimiteddo Sūtsu) - The shock-resistant bodysuit. Along with protecting the wearer’s body, there is a limiter installed that can be released to bring out full physical ability.
  • Quick Rush Leg (クイックラッシュレッグ Kuikku Rasshu Reggu) - The left leg. It is extremely agile, and thanks to the installed ‘’’Hop Springer’’’ (ホップスプリンガー, Hoppu Supuringā), Build can jump an incredible height.
  • Rabbit Foot Shoe (ラビットフットシューズ Rabitto Futto Shūzu) - The left shoe. Capable of light footwork movements.



The prime Best Match, chosen because of its well-roundedness in terms of parameters and abilities, RabbitTank was demonstrated by Takumi Katsuragi in the first entry of Project Build, where a simulated Kamen Rider Build soundly defeated a pair of simulated Guardians. The Trap of Project Build Takumi himself used as he pursued the essence of Kamen Rider Ex-Aid in his native dimension, mistakenly confronting Kamen Rider Genm. The Last Smile Catching up with the true Ex-Aid, Build robbed him of the ability to transform as he stole his essence before taking his leave. Kamen Rider Ex-Aid: True Ending


KRBu-Rabbit Full Bottle

Rabbit Fullbottle

Vortex Finish

  • Sento Kiryu version: Build dives underground to send a white energy chart flying up to the surface with the dotted line securing the enemy before leaping back up and delivering a Rider Kick whilst riding the chart's line. According to Blood Stalk, this finisher has a Hazard Level of 3.2, and then 3.7 when Build attacks him out of anger.
  • Shinobu Katsuragi version: Build performs a jumping roundhouse kick covered in red and blue energy.

Behind the scenes

The Rabbit & Tank Halfbodies were released as part of the 1st set of SO-DO Kamen Rider Build.


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