Flashy Flash vs. Gale Wind and Hellfire Flame

Flashy Flash vs. Gale Wind and Hellfire Flame is the battle between the two monster ninja of the Monster Association and the hero ninja of the Hero Association.

Prologue
After the initial monster forces are defeated by the heroes, they then entered the underground lair and each split up to take on the Monster Association's forces. One of those heroes who goes in alone is Flashy Flash; he finds a group of monsters in a narrow corridor. They boast that Flashy Flash wouldn't be able to use his superb speed in such a narrow corridor, but as soon as he finishes his sentence Flashy Flash ends all their lives with single blows to their heads. Flashy Flash states only sidekicks boast about their speeds, but remarks that in most cases, his battles are over before they ever start. Then, from behind him, Hellfire Flame uses his flaming sword and lights torches in the hallway for their battle. Gale Wind begins applauding Flashy Flash, remarking his speed as splendid. Flashy Flash strikes Gale Wind with his sword, but he evades the blow, beginning their battle.

Battle
Gale Wind jumps up on the wall and eagerly states their victory will be all-the-more sweet with Flashy Flash's amazing speed. Gale Wind jumps off the wall, surrounding Flashy Flash from both sides. Flashy Flash then strikes Hellfire Flame, but the monster blocks Flashy Flash's sword with his own. They then begin a speedy-quick exchange of blows while Gale Wind watches a few feet away. Flashy Flash tries to attack Hellfire Flame with his Wind Blade Kick, but the monster ducks and swings his sword. Flashy Flash jumps up on the ceiling to avoid the blow; however, he quickly realizes Gale Wind placed steel wires in advance. Gale Wind triggers the steel wires, yet Flashy Flash manages to avoid them in the nick of time. Gale Wind goes on to remark on the arrogance of the heroes for going in individually, and Hellfire Flame states it made this easier from them. Gale Wind then mocks that he will break Flashy Flash apart with his own speed. The hero charges the two monsters and proceeds to slice the wall off, to the shock of Gale Wind.

Flashy Flash deduces the two monsters are from the Ninja Village and they joined the Monster Association just to eliminate him. Gale Wind responds by saying it's getting too cramped, and flips over the stone they're standing on, revealing a large ravine with a waterfall and a thin bridge. Flashy Flash strikes Hellfire Flame again, and again, the monster blocks it. Gale Wind uses the opportunity to attack Flashy Flash while he's distracted, but the hero manages to block his blow with his elbow. The two monsters jump off of the wall onto nearby rocks and proclaim that they, the Golden 37th Graduation Class, will be the hero's slayers. The three ninjas engage in rapid blows, running across the water and then jumping up into the air, all-the-while exchanging attacks. Flashy Flash demands to know who their employers are so that he can pay them a visit personally. The three ninjas land on the bridge, and Gale Wind lets out a low chuckle. He asks what if his employer is the criminal Aburabozu. Flashy Flash remarks that it is impossible, because he eliminated that very same criminal, and goes on to list other criminals who've tried to hunt him down and kill him such as Harold, Chimagusa, Burigura, Devil Storm and the higher ups of the Coalition of Assassins. Flashy Flash took care of them during his off-time as a hero. As a response, Gale Wind says that every name Flashy Flash mentioned was on their hit list after the ninja hero, but now, Flashy Flash did them a service by killing them. Gale Wind coldly orders the hero to drop dead, and the two monster ninja attack the hero once again. As they're fighting, Gale Wind states that other ninja from the village are the most troublesome foes, and Flashy Flash replies that there are other ninja villages. Gale Wind laughs at this, and states no other ninja villages have come close to their home village. Yet as they're fighting, Flashy Flash sprints out at speeds the monsters couldn't see, nominally surprising them. The hero taunts them and asks them why they haven't demonstrated their power they obtained through monsterfication. The monsters sadistically smile, and Flashy Flash goes on to explain his suspicion of this all along through their lack of control of their power during the fight, assuming that they haven't been monsters for very long.

The two monsters begin to transform into their true forms, and Flashy Flash derides their foolishness for believing they could surpass him only through becoming monsters. Suddenly, the two monsters disappear from sight, and Flashy Flash's eyes widen in surprise at their increased speed. He is barely able to block both of their attacks, and the three ninja begin the second round of their fight.

With the increased speed, the monsters keep up their pressure on Flashy Flash. However, even after Hellfire Flame utilize his technique Fire Release: Blazing Scattering Slash, Flashy Flash is able to block it. Flashy Flash uses one of his own moves Heavy Flash Slash aiming to destroy Hellfire Flame's sword. Gale Wind express astonishment at Flashy Flash's technical prowess and the monsters decide to abandon the battle as ninjas and fight using brute speed and strength.

They continuing battling, and the two monsters are able to pressure Flashy Flash, managing to make him cough up blood, but once the hero became serious, he strikes both of them with a series of kicks, and then slices both of them in half with his ultimate technique Flashy Slash, ending their lives.

Aftermath
Flashy Flash leaves the battlefield and arrives at a junction. He goes to consult his Locator to see where he is but finds that he lost it in the battle.