Hellfire

Hellfire (ゴウカ, Gōka) is a monster and a member of the Monster Association.

Appearance
Hellfire has the appearance of a short robot with black and white armor and a cylindrical head.

Plot
Hellfire and his brother Gale meet Flashy Flash on route A in the Monster Association's headquarters. They both attack Flashy Flash, but are quickly killed by the hero.

Abilities and Powers
As a monster of the Monster Association, Hellfire is a fairly powerful being.

Immense Speed: Hellfire was apparently quite confident in his speed, but he was not fast enough to keep up with Flashy Flash who killed him with ease.

Trivia

 * Hellfire was a design from another mangaka back when ONE was still unemployed. That is the reason why they cannot be used in the redrawn version and instead replaced by Hellfire Flame.