Firon walked slowly through the alleyways of Robotroplis, a bloody red glow flashing in his eyes. An alarm had went off, sending wave after wave of guard robots to deal with Firon. But the hate-filled hedgehog easily destroyed each robot that got in his way, using chaos energy to slash and dash the robots into pieces.

He looked towards the smog-covered sky, sniffing the air as if he were some type of predator. His teeth grew sharp and he clenched his fists tightly. His thoughts were mostly drawn on finding Eggman and finishing the doctor off with a killing blow. He didn't care what got in his way, and because of the fury that burned within him, nothing could stop him.

More robots kept foolishly attempting to attack Firon, only to be destroyed and be turned into nothing but scrap metal. Firon kept moving his eyes all around the alleyways, making sure he didn't lose track of where he was going. His hands glowed with a red-ruby aura, flashing white when he attacked any nearby enemies, neutralizing any type of life in that foe.

He soon stopped walking, looking upward towards a tower, jutting high from his position. On top of its watch was Dr. Eggman, making Firon grin with satisfaction, believing he finally got his chance to kill the evil dictator. However, instead of a look of fear in the doctor's eyes, the doctor grinned with pure evil in his expression. Eggman looked down from the watch at Firon, speaking.

"I see you found me, but the game doesn't end here I'm afraid," the dictator walked into the tower, with the door sliding behind him. Firon hurriedly began jumping off of buildings to reach the watch. But before he even reached the watch, two hedgehog robots appeared out of nowhere, spin dashing at the gray hedgehog. Firon attempted to use his chaos fists to destroy them, but they proved immune to his power and struck him with a mighty blow, knocking Firon to the ground. The gray hedgehog got up on his knees and hands, laughing silently.

"So you wanna play huh? Be my guest, but I warn you, it won't be painless..." Firon stood up from the ground, locking eyes with the robot hedgehogs. They resembled Sonic and a red hedgehog, Speedix, Firon's half-brother. Firon's thoughts began racing through his head. Firon knew what Eggman was planning, make him more likely to betray the Freedom Fighters by messing with his mind. He also knew these two robots were Metal Sonic, and the other being, Metal Speedix. Firon closed his eyes and concentrated on the robot hedgehogs' every move. The two metal decoys of Sonic and Speedix, believing Firon was weakened, charged at him. Firon grinned an unusual evil grin, opening his eyes, revealing a pair of completely red eyes, irises and all.

"Let's see how you like a little Chaos Explosion!" Firon held out his hand, an red-black energy ball forming in it. Power seemed endless as the energy ball grew bigger. Firon laughed manically, which was very unusual of the grey hedgehog. Soon the energy ball disappeared into his palm, turning his hand into a fist. He then smacked the ground with his fist, releasing the energy, in a giant, dome-like explosion.

The robotic hedgehogs were consumed in the chaos energy, but were not destroyed. Metal Sonic began scanning the source of the explosion, and so did Metal Speedix. But before Metal Sonic found the source, Firon popped out of the light of the explosion, punching the eyes of Metal Sonic with such force, his fist went right through the metal menace's head, defeating the robotic foe. Metal Speedix quickly saw this, performing a defensive move, surrounding itself with a chaos super shield.

Firon attempted to break the shield, but it proved too strong. Firon kept smacking and kicking the shield with various chaos attacks to boost his power, but nothing worked. Firon's anger began to build, causing him to withdraw and drop to the ground, his hands on the sides of his face. He began to sweat rapidly, his eyes becoming blank, his breathing turning into wheezing. Firon's spikes rised, jutting upward and turning into a dark black color. His eyes turned completely dark red, and his teeth becane the sharpest it could be. His whole appearance, changed, into a demented monster, of fury and death.

The new Firon stood from the ground, turning slowly to face Metal Speedix, who still had his shield up. He smiled, as if this were some kind of a game he knew he would win. He raised one of his hands at Metal Speedix, targeting the robot.

"Chaos Blast!" a giant blaze of red energy blasted from Firon's darkened gloved hand, immediately taking out the chaos super shield, and turning Metal Speedix into nothing but ashes. The energy blast didn't stop there, it ended up hitting the bottom of the tower, destroying its supports, and causing the tower to begin falling apart. Firon watched in amusement, as he knew Eggman was in the tower. He waited patiently as the tower crumbled to pieces.

Dr. Eggman watched the whole battle between Firon and his two robot hedgehogs through a com-television, his expression becoming fearful and shocked. He witnessed Metal Speedix's destruction, and saw the new Firon, a tall, fully black hedgehog with glowing red eyes, and unstoppable power. Dr. Eggman began to slip and fall to the floor as he felt the tower shook. He immediately looked at the com-television, seeing the tip of a red flash moving off screen.

"Rewind it a few seconds!" he ordered the computer, which was a plain female voice.

"Rewinding," it replied, accepting the order. Dr. Eggman stared in despair as he saw a giant red wave of energy crashing into the tower he was in. He knew what was happening: the supports had been destroyed, and the tower was about to fall. The dictator knew he couldn't escape in time, so he began praying that he would survive. Large pieces of debris fell from the ceiling, one of them hitting the doctor on the head, knocking him unconscious.

The tower fell to pieces, dust and small debris spread throughout the crash site. Firon could sense that something was still lived within the tower's remains, and he knew exactly who it was: Dr. Eggman. He moved closer to the tower's ruins, seeing the evil dictator trapped under rocks, some of his bones broken but still alive. The doctor looked at the black hedgehog in fear.

"After all those attempts to kill you...to think it would be this easy...now, you will die and your terror shall never plague Mobius again!"

"What! No!" Dr. Eggman shielded himself with his unbroken arm, but it would be no use.

"Goodbye forever, doctor!" Firon slashed his chaos fists at Eggman, the scene going black as Eggman screamed in pain. The doctor was finally dead.