- WorkGun x Sword
- Pilotカギ爪の男
The Birthday System was a giant armor and the final key to The Claw's plan to reformat the world. The armor was powered by numerous sources, granting it the power to reformat the entire planet.
The Birthday System was an immobile armor, designed to facilitate The Claw's plan to reformat the world, causing all living things to find peace on an unconscious level.
The ultimate Armor designed by the people who escaped from Earth, the Mother Planet, which supposedly surpassed the Original Seven. It controlled the moon of the Endless Illusion, which was actually a giant satellite used to escape from Earth by a group of scientists. It is crucial to the Claw's plot, who pilots it himself and fights against Dann of Thursday several times.
Inside it is just a large room full of golden fluid instead of the traditional blue with a pillar which the Claw Man only has to lie in to control. Its prime defense is the 'Guardian Curtain' which is a curtain made of energy surrounding it.