Names：

J-Decker

（Police Combination）
Status： Police Combination Form of Deckerd and J-Loader
Tags： CommanderSeparableMaleBrave RobotProtagonistArtificial IntelligenceBrave Police TeamPolice
Superior & Subordinate： Duke FireBuild Tiger
Combination： Fire J-DeckerDeckerd
World： the World of Brave Robots
Works： Brave Police J-Decker
LeveL： S

J-Decker is formed from the Police Combination of Deckerd and the J-Roader. He can then combine with Duke Fire (BP-119 Duke, Fire Roader) to form Fire J-Decker. When combined with BP-601 GunMax and Gun Bike in their Max Cannon configuration, J-Decker is known as J-Decker Max Cannon Mode.

According to Juuzo Saejima, the "J" in J-Decker represents the Japanese police force while "Decker" is a shifted spelling of "Deka", an archaic Japanese word meaning detective.

J-Decker usually was used as a last resort against monsters too large and powerful for the Brave Police to bring down by themselves, and often in conjunction with Super Build Tiger. He is capable of flying using the wings on his back, which allows him to combat aerial enemies effectively. He can also utilize GunMax with the Gun Bike as the powerful Max Cannon.

For the final battle, a manual-piloting system has been installed on J-Decker in case that Deckerd's A.I. unit went offline, which allowed Yuuta to continue fighting.

J-Decker is formed from the Police Combination of Deckerd and the J-Roader. He can then combine with Duke Fire (BP-119 Duke, Fire Roader) to form Fire J-Decker. When combined with BP-601 GunMax and Gun Bike in their Max Cannon configuration, J-Decker is known as J-Decker Max Cannon Mode.

According to Juuzo Saejima, the "J" in J-Decker represents the Japanese police force while "Decker" is a shifted spelling of "Deka", an archaic Japanese word meaning detective.

J-Decker usually was used as a last resort against monsters too large and powerful for the Brave Police to bring down by themselves, and often in conjunction with Super Build Tiger. He is capable of flying using the wings on his back, which allows him to combat aerial enemies effectively. He can also utilize GunMax with the Gun Bike as the powerful Max Cannon.

For the final battle, a manual-piloting system has been installed on J-Decker in case that Deckerd's A.I. unit went offline, which allowed Yuuta to continue fighting.