Publication Information
- Riders : Kamen Rider Birth
- Japanese : バースアーム
- Type : Arms Transformation
- Usage : Weaponary
- Users : Various
- Season : Kamen Rider OOO
- First Appeareance : Kamen Rider OOO Episod 16 : An End, the Greeed, and a New Rider
- Voice Actor : Jōji Nakata (Birth Buster, Birth Driver)
- Main View : Full Episod
Birth CLAWs
Birth CLAWs is an armor system that consists of six armaments contained in Receptacle Orbs on the Kamen Rider Birth armor, created by Doctor Maki as part of the Kougami Foundation's Medal System. Using a unit requires a Cell Medal as payment for it to emerge and attach to the Recepable Orb it came out from. Furthermore, the Birth CLAWs are magnetic and thus attract Cell Medals to them. Kamen Rider Birth can also use two or more CLAWs units at once by inserting in more Cell Medals into the Birth Driver. If one of the weapons is damaged, it has to be taken to the Foundation for repairs.
Crane Arm / Springer Haken
- Green Crane Arm unit, referred to as the Springer Haken, "Jumper Hook" in German), is a powerful winch attachment that is contained in the Receptacle Orb on Kamen Rider Birth's right shoulder and forms the CLAWs Sasori's tail. The winch allows him to scale buildings as well as collecting any leftover Cell Medals with one sweep. As a weapon, it can be used as a whip to damage opponents from far. This unit is first used by Nobunaga to fight the Pteranodon Yummy in Movie War Core.
Breast Cannon / Salamander Launcher
- Red Breast Cannon unit, referred to as the Salamander Launcher, is a powerful energy cannon that is held in the Receptacle Orb on Kamen Rider Birth's chest and forms the CLAWs Sasori's body. Due to its size and location, using it hinders Kamen Rider Birth's mobility. The cannon can be charged up to multiple levels of power by using additional Cell Medals.
- Blue Drill Arm, or Brighton Bit, is held in the Receptacle Orb on Kamen Rider Birth's right forearm and forms the stinger on CLAWs Sasori's tail. Its powerful drill bit can extract Cell Medals or even Core Medals from the bodies of Greeed and Yummy, while dealing serious damage to their bodies. It was eventually upgraded by Maki to increase its power after it got broken, allowing it to tear enough Cell Medals out of Kazari's hybrid Yummy to reduce them to a normal O-Yummy. The Drill Arm can also be combined with the Crane Arm by activating both simultaneously, allowing Birth to use it as a powerful ranged attack.
Catepillar Legs / Haze Crawlers
- Purple Catepillar Leg, or Haze Crawlers, are held in Receptacle Orbs on Kamen Rider Birth's legs and form CLAWs Sasori's legs, and allow him to move easily over tough terrain, execute heavy kicks and grind on opponents using its tracks.
- Orange Shovel Arm, or Vermillion Bucket, is held in the Receptacle Orb on Kamen Rider Birth's left forearm and forms the CLAWs Sasori's left pincer, increasing his power to where he can lift Yummy off of the ground with it. He can also slam it into foes for heavy attacks, powerful enough to smack the host out of the Lion-Kurage Yummy.
Cutter Wing / Solent Edges
- Yellow Cutter Wing, or Solent Edges, is held in the Receptacle Orb on Kamen Rider Birth's back, allowing him to fly and cut opponents with the wings on it. It can also be used as an oversized boomerang and forms the CLAWs Sasori's right pincer. The unit can also magnetically collect Cell Medals by flying over them.
In the non-canon Kamen Rider OOO Allstars: The 21 Leading Actors and Core Medals net movie, Kamen Rider Birth is shown to summon ingredients of oden from the Receptacle Orbs.
Birth Day
- Kamen Rider Birth Day is the powered up form of Kamen Rider Birth when all six Birth CLAWs units are summoned and attached to Kamen Rider Birth at once. Becoming Birth Day requires six Cell Medals, it can be done all at once or by summoning one Birth CLAWs at a time. Birth Day can also perform a powerful attack called the Cell Bash, where the Breast Cannon fires a powerful energy blast without the expenditure of any Cell Medals. Likely drawing residual energy from the other CLAWs units
CLAWs Sasori
The CLAWs Sasori can move freely across water and burrow underground, even with a passenger such as OOO. It can also split apart into its components and reform to create the illusion of being destroyed. Offensively, the CLAWs Sasori is capable of extending both of its arms and its tail on tethers like the combined Crane and Drill Arms, and can utilize a Cell Burst-like attack which fires an array of various colored lasers from the tip of its stinger
Birth Buster
Birth Buster is Kamen Rider Birth's personal firearm weapon, created by Doctor Maki as part of the Kougami Foundation's Medal System. It first appears in Kamen Rider × Kamen Rider OOO & W Featuring Skull: Movie War Core, and then made its TV debut in episode 16. In Normal Mode , it is a gun that uses Cell Medals as ammunitions, firing medal-shaped energy bullets. Birth can reload the Birth Buster with Cell Medals by using the Cell Bullet Pod , which can also be mounted on the forend to act as an auxiliary grip.
In Cell Burst Mode , the Cell Bullet Pod is attached onto the Birth Buster's muzzle, making it capable of releasing an explosive ball of energy so long as it has at least one Cell Medal. The recoil of the gun is very powerful, as evidenced by Shintaro Goto was thrown flying backwards after firing just one shot, when he fired the gun for the first time. Date later allows him to use and keep it, as so to prepare Goto in becoming Birth once Date achieves his goal of acquiring one hundred million yen. After giving Goto the original Birth Buster, Date obtains a replacement from Maki. When Satonaka becomes Goto's assistant, she also wields a Birth Buster.
Ganbaride/Ganbarizing
- The Birth Buster is also among the various Rider Weapons used by Ganbarider in Kamen Rider Battle: Ganbarizing.