Prison Supporters

Assembled from prisons across the globe, the Supporters are convicts assigned to fight alongside the professional heroes. They wear their prison uniforms and rely on bare-handed combat. By their leader's estimate, their battlefield experience puts them on par with B-Class heroes, yet in practice they often seem unreliable and visibly afraid of the monsters set against them.

The crew first proves itself by bringing down the Wolf-level threat Tentacle Muffler, a feat that earns Hammerhead praise from Puri-Puri Prisoner. When Raiden and his group try to round the inmates up, Puri-Puri Prisoner speaks up in their defense, and Raiden, won over by his conviction, calls off the arrest.

Later, as the Robot Invaders strike cities across the world, the Supporters are deployed to repel them and join forces with the Super Sumo Squad to smash the machines. That alliance sours the moment the Neo suits hijack the sumo wrestlers, who then round on the group; even with Puri-Puri Prisoner shielding them, the inmates are overwhelmed.

Puri-Puri Prisoner serves as the leader of the outfit, while Hammerhead ranks among its active members. Both are listed as still operating within the group.