Disclaimer: I do not own Sonic or related characters. I do own Darknite.

Sonic ran through Station Square. He was thinking about what to do. "This is bad." Sonic said. "Now Darknite has three emeralds. Who knows what the psycho plans on doing with them! I don't care what, I'm gonna stop him just the same!"

Elsewhere at Darknite's mountain base. . . . .

"Metal Sonic, are you ready to begin your transformation?" Darknite asked Metal. He and Metal were partners. Neither one was the other's master.
"Affirmitive, Darknite." Metal replied. He had trained for three days without rest to be able to absorb his brothers.
"Good, Metal. Now which of your bretheren would be easiest to absorb?" Darknite said going through files on the master computer. Metal came over and stopped at the file on Tails Doll.
"This one. Tails Doll."Metal said.
"Good. What are you waiting for? Go absorb him into your body!" Darknite said. "Then we can begin the next phase."
Metal quickly left and scanned for Tails Doll on his radar. Unfortunately for Tails Doll, Metal found him. Metal soon reached the location he was looking for. Tails Doll hovered in the air as usual, but now it hovered with small jets on its feet. Darknite had given Tails Doll several improvements. He made it's arms and legs thicker and stronger. He had given it the power to shoot laser beams. It was now almost as fast as Metal. He made it look evil instead of creepy. It now had red eyes and had sharp hands. Its jewel had been embedded in its forehead. It now looked and was menacing. It was renamed Metal Tails. It took notice of Metal. Darknite said his improvements were to make the machines give more power when absorbed. The revived Metal also wanted a challenge and fought a bit more fairly. Metal had a slight sense of honor now.
"Brother Metal Sonic, what are you doing here? Lord Darknite did not inform me that you were assigned patrol command here." Metal Tails said. Metal Sonic stepped forward.
"I did not come to patrol. I came here to settle a dispute. I told Darknite that you might top me in power. I asked him if I may fight you to keep my title as strongest robot. If you accept my challenge, I'll be waiting in the Roborena." Metal said heading for the newly built Colloseum like structure. Metal Tails soon followed. They arrived quickly. They each took a spot on the arena floor opposite eachother.
Darknite came in through another door. He was on a raised platform in the bleachers, just like the Roman arena. He even wore an emperor's clothing, complete with the crown. Robots were sitting in the bleachers.
"My loyal machines." Darknite said calling for absolute silence with his hands. "I am pleased to present a clash of mechanical titans!We have my excellent partner, Metal Sonic, here to defend his title as top robot. And his opponent, Metal Tails, formerly known as Tails Doll, has accepted Metal Sonic's challenge. Before we may begin, I must state the rules." Darknite said pulling a small scroll from his belt and unravelling it. "There is only one rule for this fight. There are no rules. Let the contest begin!" Darknite said.The crowd cheered.
Metal started the attack after a 10 second staredown with Metal Tails. He sped at top speed towards Metal Tails, hand out to scratch when he got close. M. T. (Metal Tails) flew up into the air. His gem glowed and fired a laser at Metal Sonic (M. S.) which Metal Sonic barely dodged. Metal had his own secret weapon. He pointed his hand at M.T. The fingers shot out and scratched the steel on M.T. then flew back and reattached to M.S.'s hand. For the next five minutes, they shot lasers and punched eachother. When that was done, Metal Sonic was missing a hand, one of his eyes was blinking, and several of his systems were critically damaged. One of Metal Tails' legs was partially melted, his orange paint had several scratches on it, showing the grey metal beneath. Metal Tails was leaking small amounts of oil on his body.
Metal Tails never saw Metal Sonic's deadliest weapon coming. Metal had secretly shot his other hand behind Metal Tails when he attacked to make it looked like it was knocked off, and Metal Tails thought that Metal only had one hand, and it lay there on the floor. It hovered up slowly. M.T. and Metal stared at eachother for a few seconds. Metal called his hand to him. It put on highspeed jets and flew towards Metal Sonic. Metal Tails was in the middle of it's route.
"Brother, you should look behind you. There's a surprise for you." Metal Sonic said just as the claw was behind Metal Tails. Metal Tails turned around just in time to see the hand go straight through his chest and come out his back. The hand was covered in oil now. It reattached to Metal Sonic's arm quickly. If Metal Sonic was organic, he would be smiling. Metal Tails now had a hole through his chest. Oil, pieces of wire and chunks of steel littered the spot behind Metal Tails where the hand had gone through. Metal Tails' systems had suffered plenty of damage. He collapsed and couldn't move. His eyes now flickered. He could see Metal's feet on the floor moving towards him. Metal kicked Metal Tails over so he could see Metal Sonic's face.
"Don't worry, brother. You are in critical condition now. But once I absorb you, you won't have to worry about these minor injuries." Metal said. He lifted Metal Tails into his arms and held him. Metal seemed to be concentrating on something. Metal Sonic and Metal Tails felt warm inside suddenly. Metal Sonic glowed gold. A huge flash of light appeared and engulfed the arena floor. When the light dissapeared, only Metal Sonic stood there. He looked the same, except his body was completely healed and two yellow lightning shapes were right above his eyes. He looked bulkier and better than before. All the parts that littered the arena floor before had dissapeared, absorbed into his body. The crowd cheered. Darknite stood up and clapped.
"The winner, as I thought, is Metal Sonic!" Darknite said. "I shall speak with him in the throne room. Thank you for coming." Darknite said dissapearing into the private doorway behind his chair. As he entered the dark confines of the hallway behind it, he smiled and laughed. "While Metal is absorbing hsi brothers and acting as a distraction, I am saving mine and bringing everything together as planned. The world will soon be mine!" Darknite laughed very loudly and evilly.

A few minutes later. . .

Metal soon arrived in the throne room. Darknite smiled at him as he entered.
"Excellent job, Metal! Now that Metal Tails is part of you, we may move on." Darknite said.

Back at Station Square, Sonic's house...

"I'm telling you guys, I just got a wierd vibe. Something more bad than we imagined is going to happen." Sonic said to everyone, who he invited over.
"Don't worry Sonic." Tails said. "You've never let this planet down. I know Darknite will be beaten eventually."
"You should worry, little fox." a voice from the shooting side of a sniper scope said as he pointed it through Sonic's window at Tails.