Disclaimer: I don't own these characters, they belong to Sega

Prologue

"Almost there, just a few more minutes" Sonic said to himself. Eggman had (once again) come up with another scheme to take over the world, and he was going to use a Chaos Emerald to do it.

Now Sonic had to run off to Eggman's new base, kick his butt, and be on his way. This would have been easier if it wasn't for the fact that this base what as the bottom of a deep chasm. Sonic had to take his time (not an easy task!) climbing down the chasm so he wouldn't slip and plummet to his death.

Despite all his caution, Sonic slipped after standing on a loose rock, causing him to fall. Sonic didn't even flinch. At this point in his life, falling off a cliff was as old as it can get. Sighing, Sonic propelled his body toward a cliff side. He shifted his body so his feet would land at the side, and then sprung himself toward the other cliff side. Before crashing, he quickly went into a spin dash, riding down the wall and landing gracefully at the bottom.

Sonic smirked as he got up from the ground, the fall barely presenting any challenge to him. He expected Eggman to do no better. Sonic walked toward the base in front of him. It was circular in size and hung over a large crack with suspension cables. Sonic considered just breaking all the cables, but that would just make a mess.

To Sonic's mild surprise, a large centipede-like robot jumped from behind the base, positioning itself in front of Sonic. The robots glowing eyes stared at Sonic as if to intimidate him. Sonic simply scoffed at this attempt and leaped toward it. Without warning, the robot swerved its body around, batting Sonic out of the way. The hedgehog was not deterred, as he bounced off the wall and launched himself into the air.

Sonic dropped from the sky and landed directly onto the robot's head, smashing it to the ground. He casually walked off of its head and proceeded to spin dash into the rest of the robot's body. The robot was helpless as it was torn piece by piece until it was scattered across the ground. Sonic dusted himself off as he walked toward the entrance.

Without doing anything, the entrance to the base had opened, as if Eggman had wanted Sonic to go in the base. He's either overconfident or crazy Sonic thought as he walked into the base. He didn't even take two steps before he was ambushed by a horde of badniks. Instead of the fight they were expecting, Sonic dashed off, with none of the robots even having a chance to fight.

Little did Sonic know, there were security cameras everywhere, with Eggman watching his every move.

"Ho ho! That little rodent thinks he can just waltz in here, and not have to fight any badniks? That just won't do." Eggman chuckled as he imputed a command into his computer. "There's someone who's been dying to see you again Sonic!"

Sonic didn't notice, but as he passed through a dark hallway, a pair of red eyes lit up behind him and proceeded to follow him. It took the hedgehog minutes before he realized the glowing eyes trailing him.

"I can't see you, but I know it's you Metal." Sonic calmly said.

As if on cue, the eyes moved out of the darkness, revealing the figure of Metal Sonic. Were it not for his revealing eyes, Metal would have been perfectly hidden in the darkness. The two began to pace around each other.

"So Metal, how's it been? You know, after I turned you into junk the last time?" Sonic sneeringly stated.

"My master has repaired me in hopes that I may complete my primary objective. However, I have been offline for a matter of days. I have now been given another chance at terminating you." Metal Sonic replied in his monotone voice.

"Huh, makes sense. Just so you know, you won't beat me this time either."

"That statement is incorrect."

Now Sonic was confused, but he decided to humor the robot. "And why is that?"

There was no reply. Instead, Metal Sonic had vanished within a fraction of a second and reappeared behind Sonic. "I have been upgraded." Metal stated emotionlessly as he hovered over the ground.

Sonic twisted back in surprise only to receive a swift kick in the chest, knocking him back. "Nice trick." He stated, before performing an unexpected spin dash right at Metal Sonic. Metal was unable to block it and was sent reeling back. He disappeared before he could hit the wall, and reappeared in front of Sonic, utilizing his own version of a spin dash.

Sonic dodged the move at the last second, sending Metal Sonic crashing through a wall. As Sonic inspected the hole for any sign of Metal, the robot grabbed his leg from underneath and promptly threw the hedgehog to the ground.

"Guess you're fighting serious now? Well, I'll just have to try harder!" Sonic stated as he stood up. He jumped from the ground to the ceiling of the room, with his robot duplicate in pursuit. Before hitting the ceiling, Sonic quickly spun, bouncing off of it. Metal managed to swerve around the attack, but Sonic bounced off of another wall, and launched himself directly at Metal Sonic. The robot was knocked back into (guess what?) another wall.

Sonic jumped toward the broken wall and found, himself in the middle of another long hallway, with no sign of Metal anywhere. Sonic wasn't fooled, Metal Sonic was in there somewhere. Unfortunately, he couldn't predict that Metal Sonic would appear in front of him, grab his neck, and smash him into a wall.

This time, Metal didn't let go of Sonic's neck. The robot was perfectly willing to suffocate the life out of his adversary, and had the grip to accomplish that. "As I have said before, I have been upgraded. Your abilities are now insufficient to defeat me." Metal stated as his grip further tightened. Sonic flailed his legs in a desperate attempt to kick Metal Sonic, but he was failing. It seemed as if the robot would finally complete his primary objective.

However, that was not to be. Sonic had reeled back his legs and kicked straight at the robot's torso, forcing him to release his grip. As Sonic was gasping for air, Metal rose up and flew straight at his enemy.

Sonic, despite his position, was ready for the attack. He bent down to the ground, narrowly avoiding Metal Sonic's charge, causing him to crash in yet another wall. "Hey Metal, if you keep crashing into the walls like that, I wouldn't even have to take apart the base myself!" Sonic shouted as he stood up.

Metal gave no reply, causing Sonic to sigh. There was no reason to taunt Metal Sonic. He was not programmed to feel frustration or annoyance or any other emotion for that matter. He was built to single mindedly destroy his target, and ignore almost everything else.

Metal flew up from the rubble and launched himself at Sonic, who locked hands with him in a struggle to overpower him. As Sonic and his counterpart pushed each other, Sonic was tempted to taunt Metal, but stopped, realizing it would be pointless. Sonic then pushed down, forcing Metal Sonic to lean back onto the ground. Sonic quickly jumped up and curled into a spin dash, landing straight on the robot.

After a few seconds, Sonic leaped forward and looked back to check his impact. Metal Sonic lay limply on the ground, his red eyes faded away. Sonic huffed, and walked forward. He did not realize that Metal had reactivated himself and rose up. When Sonic heard noise, he turned around, only to see there was nothing there. He turned around, only to see the robot was hovering in front of him.

Surprised, Sonic jumped back. Luckily, in doing so, he managed to avoid a swipe from Metal's claws. With no other option in his mind, Sonic raced past his counterpart at a blistering speed. Metal Sonic followed suit with the thruster on his back.

The hallway seemed to stretch on forever, as there was no exit in sight. Sonic turned to see Metal Sonic flying next to him. Sonic sped up, hoping to outrun the robot, but it simply sped up with him. Sonic then took off at an even faster speed, his legs moving in a figure eight motion. He turned to see Metal flying in a fiery orb catching up with him.

The hallway was finally ending, as Sonic could see a heavily reinforced barrier at the end. Sonic accelerated even faster and Metal imitated his choice. Right before they could crash into the wall, Sonic was able to slow down fast enough to grind to a halt right before the wall. Metal Sonic however, could not stop and crashed into the wall at full speed.

Sonic coughed as the dust covered the hallway. As it cleared, he stepped into the now open room. To his luck, it was where Eggman was hiding, as he could see the villain fallen out of his chair in surprise. Looking around to see where Metal Sonic was, Sonic found him lying near the rubble, his eyes turned off. Hopefully, he would stay off.

"Bet you didn't expect that, eh Metal?" Sonic chuckled as he walked past his robotic counterpart. Eggman stood up and was quickly able to compose himself.

"Ah Sonic, you may have defeated Metal Sonic, but you won't have a chance at defeating me!" Eggman grandly announced. Sonic rolled his eyes, and continued walking.

"Yeah, yeah Eggman. You say this every time you fight me," Sonic stated with boredom in his voice.

Eggman's mustache seemingly deflated in mild surprise. "That was then, and this is now. My newest invention will take care you!" He stated.

"Fine, so where is this emerald powered robot you plan to beat me with?" Sonic asked mockingly.

"I never said it was a robot…" Eggman said with joy. He pressed a button and a large, diamond shaped prison enveloped Sonic. The hedgehog attempted to break free, but his attacks had no effect.

"You'll have no chance escaping that prison rodent. It is powered by the Chaos Emerald's energy!" Eggman stated. Pressing another button, a large, circular object rose from the ground. With another press of a button, the large circle inside the machine started glowing with purple energy.

"Funny thing about chaos energy, You never know what you can get from it!" Eggman announced. The prison Sonic was trapped in started moving toward the device.

"With this portal, you will be trapped in another dimension, where you'll be out of my way forever!" Eggman announced as he started laughing madly.

Sonic struggled to get out of the prison, but it was too late. His body was sucked into the circle, the only thing he could hear was Eggman's laughing. And then he fell, unconscious.

Sonic woke up after what felt like a week of sleep, and leaned upward, rubbing his head. He looked around, a wrecked city was around him, and the sky was filled with dark clouds.

Before Sonic could get up, several figures surrounded him, one holding some sort of firearm. "We finally found you, Sonic the Hedgehog!" One of the figures shouted with anger.

This just isn't my day thought Sonic.