Siren Builder

Siren Builder is the giant robot of Bouken Silver.

Components

 * Gougou Fire- Bouken Silver's primary Gougou vehicle, which forms Siren Builder's head, body, and legs.
 * Gougou Aider- Bouken Silver's auxiliary Gougou vehicle, which forms Siren Builder's left arm.
 * Gougou Police- Bouken Silver's auxiliary Gougou vehicle, which forms Siren Builder's right arm.