1Disclaimer: I do not own Sonic or related characters. I own Darknite and Splice.

"Well well, my little friends." Darknite said. "Are you afraid of how close death is?" He laughed and unsheathed his sword. They found it strange as to why the blade was black. "This is the Yangblade. It derives it's power from all negative emotions and energy along with every enemy it slays. The stronger the enemy slain, the stronger it gets. I'll be unstoppable once I slay you all! Oh, and Splice needs to be modified." He snapped his fingers and a capsule came out of the floor and it opened. Robotic tentacles came out and grabbed the now unconscious Splice. They dragged him in, the capsule closed and it disappeared into the floor. Darknite then said something under his breath and a ball that was black and purple formed in his free hand.
"Catch!" he said before throwing it. They scattered before it hit. Cybershad went after Cream and Amy, Cinamo went after Big and Rouge, Metal went after Knuckles and Darknite went after Sonic. Lasers shot down and divided the room into four sections.

"Mr. Shadow, why are you fighting us? We're your friends." Cream said avoiding a swipe that Cybershad's robotic hand, now a claw, made for her.
"I am no longer the confused Shadow, the weakling who felt pitiful emotions! I am Cybershad, Darknite's brother and the real Shadow!" Cybershad said trying to slash Amy and Cream. He stopped chasing them and pointed his robotic arm at them. The inside of the gun barrel began to glow. "Die!"

A yellow ball fired at them and they barely got away. "Doesn't matter, I wanted to test out my Nanite weapons anyways!" Cybershad said. A large grey mass filled up his gun arm. It came out of the arm and formed a long shape, before the shape turned yellow. "I'll kill you with my Nanite sword!"

"So, how do you fools plan to die?" Cinamo said to Rouge and Big in another part of the room. "I could shoot you, or inject you with toxins. Or I could just gas you! So hard to choose." Cinamo said in a mocking voice.
"You keep dreaming." Rouge said. "But I don't think your dreams will come true. We'll defeat you, Cinamo." Cinamo laughed.
"What's so funny?" Big said.
"Your heroic speeches." Cinamo said. "But most of the time in the real world, evil prevails. I just don't see how a hooker and a buffoon will defeat me."
"You take that back!" Rouge said.
"Why should I?" Cinamo said.
"This is why!" Rouge said lunging for Cinamo. She pounced on him and tried to scratch his face with her sharp nails. He smiled and pulled out a gun with a needle in it. He injected into Rouge's side. She flinched as it penetrated her skin. While she was distracted, Cinamo kicked her very strongly and she was thrown across their part of the room, sliding towards the laser grid that would cut her up if she touched it. Big slid in front of her path and stopped her only centimeters away from the grid. Rouge got up and looked at Cinamo, seeming to be a little wobbly.
"Nighty night, Bat girl!" Cinamo said before Rouge collapsed from the toxins in her body.

"Though I wish to fight my copy, you'll do just fine echidna!" Metal said to Knuckles as he got in a fighting pose.
"You're going down Metal!" Knuckles said as he lunged towards Metal. Metal stepped to the side and Knuckles slammed into the fountain behind Metal. Knuckles was on the floor of the fountain and he spat out some water. Metal laughed.

"It looks more like you're going down." Metal said. "Or, more appropriately, drown!" Metal leaped towards Knuckles and landed in the fountain. He was waterproof. He held Knuckles' head beneath the water. Metal laughed as Knuckles struggled. A few minutes later, bubbles stopped coming up. "Hahahaha!" Metal laughed triumphantly and stepped out of the fountain. He looked at Knuckles one last time before turning his head so he couldn't see Knuckles. "So much for the mighty guardian. Now I just have to wait for everyone else to finish their opponents."
His systems suddenly sensed that something was damaged. He looked down and saw a black spiked fist through his engine. He calculated and found out that was Knuckles' hand and that it was covered in his oil. His head turned around and saw Knuckles behind him smiling.
"But. . .But how?" Metal said in confusion. Knuckles pulled his hand out and attempted to punch Metal again. Metal jumped back and noticed some of the edges of his turbine was damaged, as some scattered pieces of metal on the floor and spots of oil said.
"If you're so curious, I have an air necklace. It supplied me with plenty of oxygen. I acted like I was drowning." Knuckles said. "And now, I get to destroy you."
"Not quite, echidna!" Metal said. He thought of speeding towards Knuckles, but then he remembered most of his speed came from his turbine in the middle, which was damaged. He could only use jets on his feet to speed, which could only go up to 100 miles per hour at max, only 10 of Sonic's maximum speed. (Based off of a comment by Robotnik in SatAM.) Metal had another weapon he could try. He pointed his arm towards Knuckles and his hand went up, revealing his arm had a small missile inside. He fired it and Knuckles dodged.
"Come on, Metal, is that the best you got?" Knuckles said. Metal made an angry sound. He turned on his jets and charged after Knuckles, unaware that he was slowly damaging himself. Knuckles had to dodge what seemed like one hundred slashes from Metal's claws.

"So, Sonic, I've been waiting a long time to slay the blue blur." Darknite said. He stood straight up and pointed the tip of his sword at Sonic. "Now you must die!" Darknite ran ahead at top speed and struck Sonic on the shoulder, hand, stomach, and cheek, leaving many cuts all over his body. Sonic's blood poured out of every wound. "How I love the color of red." Darknite smiled evilly. "Ready for a second round?"
"Don't count on your swords to stop my speed!" Sonic said before vanishing as he sped around their part of the room. As he was about to punch Darknite from behind, Darknite turned around and slashed his right thumb off with his sword. "Ahhh!" Sonic fell to the ground as he looked at the bloody stump that was once his thumb in disbelief. He also saw his thumb on the floor.
"Now that's comedy!" Darknite laughed maniacally as Sonic felt pain. Darknite put the sword on the small pool of blood, and the blood was soaked up like it would be by a towel by the sword. "I'm a sadist you know. This pleasures me." Sonic curled into a ball and charged at Darknite, knocking Darknite onto the ground. Sonic jumped on him and punched him in the face many times.
"How do you like that, you bastard?" Sonic said as he beat the crap out of Darknite. Darknite's eyes, which had been closed while he was punched, opened suddenly and Darknite spoke in a creepy voice.
"I don't like it and you're about to die!" Darknite then kicked Sonic hard in the stomach with incredible strength and Sonic flew through the air until he landed an inch in front of the grid. Darknite then leaped all the way to Sonic, landing right next to him. He grabbed Sonic's head and held it near the grid.
"Prepare to become Swiss cheese, hedgehog!" Darknite held Sonic's quills near the grid. They cut through the quills' tips. Sonic was about to be shredded, but then Darknite heard a sound. He looked to see Metal was missing a lower leg, blowing sparks, and leaking oil. Cinamo was pinned underneath Big as Big used his weight to crush Cinamo and force the air out of his lungs. And Cybershad was being chased by Amy who kept hitting him on the head with the hammer, periodically stopping to fire a laser at her. Unfortunately for Cybershad, he hit the grid. Half of his robotic arm and all of his robotic leg were cut off. Cybershad collapsed onto the floor, leaking oil and trying to get up, which was hard due to a lack of a leg.

"Brother!" Darknite said. He let go of Sonic and shut down the grid. He picked up Cybershad and ran to the stairs. "Another day, Sonic!" Darknite then ran up the stairs into the hall beyond the top of it. Holes in the floor opened and retrieved the dark team's members, dragging them into them and hatches sealing the holes. Sonic got up and tried his best to cover up the blood on his hand.

"Guys, we won. Now we can stop him." Everyone got closer and noticed how Sonic was covering his hand.

"Sonic, what's wrong?" Amy said trying to get him to take his hand from behind his back as she pulled his arm. He got tired and revealed it to them. They gasped at how Sonic's thumb was gone.

"What happened?" Knuckles said.

"Darknite chopped it off in the fight. It's nothing, we have to stop him. Let's go!" Sonic said leading the charge deeper into the fortress.

Meanwhile, at the Launch Pad of the Fortress. . .

Darknite scurried about in the cockpit of what looked like a small red and black private jet. Cybershad was in a capsule healing his wounds and replacing his metal parts with newer, stronger ones. Cinamo was sitting in a seat waiting for the lift off. Metal was in another capsule which was upgrading, rebuilding, and also infecting him with a more powerful obedience virus. Splice was also in a capsule that was monitoring his body and eliminating anything in him Darknite considered a threat, mainly being able to lie to Darknite.

"Those fools! They think I'm finished. But what they don't realize is that the Niteclan shall rise again. The next time I appear, I'll conquer the planet, and they won't stop me!" Darknite said. "Well, I should go shut down the reactor. Then this place will self destruct after I take off. Cinamo, send me a signal should they arrive." Darknite exited the plane and headed for the reactor core.

Sonic and his party arrived at a vast room with catwalks and platforms suspended above a large pool of plasma. Black and red robots came out of the corridors, about 10 of them. Sonic and the others sliced them to pieces, which fell into the plasma and dissolved.

"Sonic!" Rouge said to get his attention.

"What?" Sonic said.

"I've examined one of these large machines on the platforms. This is the power room. If we destroy the machines, the base will shut down." Rouge said.

"Alright, then let's. . ." Sonic said before hearing an evil laugh which could only belong to a certain person. "Darknite." Sonic turned around, and sure enough, Darknite was slowly walking towards them from about 30 feet away on the catwalk.

"If you destroy this room, you'll be crushed. I've set the base's self-destruct mechanism to activate when there's a blackout." Darknite said. He then unsheathed the Yangblade. "But before I destroy this place, I'm going to make sure you never forget me by slicing off some limbs!" He then ran like a ninja towards them, the blade out front, ready to strike. He arrived in a few seconds. He spun around in place, the sword leaving a few cuts on their bodies. He then threw an energy ball at Sonic. Sonic dropped down so it went by him, but when he stood up, he gazed into crimson eyes. Darknite was in front of him! Sonic immediately spin dashed into Darknite sending Darknite flying back a few feet. Darknite laughed.

"What's so funny about losing?" Sonic said.

"Sonic, if you could've watched, you would have noticed that energy ball destroyed a small section of the catwalk you're on behind you. And now. . ." Darknite said before slashing the railing and floor of the catwalk right in front of him. "You get to plummet to hell!" The catwalk gave way after a few seconds, collapsing down to the plasma. Sonic jumped off just in time before he would have been too far down to come back up. He landed on top of Darknite and pinned him to the ground.

"Now I'll kill you!" Sonic said.

"Go ahead." Darknite said. "If you want to lose your friends." He tossed the Yangblade and it landed near his friends. An acidic substance began to leak out in a straight line. It was going to make the part of the catwalk they were on fall off and collapse into the plasma. Sonic saw this and looked back at Darknite, who had an evil smile. "It's me or your friends, Sonic." Darknite said. Sonic then got off. He quickly leaped to the are on the safe side of the acidic line. Sonic got each of his friends off the slowly slanting platform. He also tried to grab the Yangblade so Darknite wouldn't have a weapon. His hand was burned somehow as soon as he touched the hilt of it. He then heard the words 'Chaos Control.' Darknite appeared in front of him and took the sword before warping to the other side of the gap in the catwalk. He then walked over to a large generator on a platform. He pressed something on it.

"Base Collapse in 5 minutes." A Computerized voice said.

"Sayonara Sonic the hedgehog! I got a plane to catch!" Darknite said before warping again. Sonic then noticed the doors were being covered by large metal ones and the plasma was rising below them. They'd be melted by the plasma. Sonic woke everyone up quickly.

"What happened?" Amy said.

"No time! Let's go!" Sonic grabbed Amy and slid under the door as it was shut. Everyone got out just before the door closed. They rushed down corridors as pieces of the place collapsed around them. An explosion occurred behind them at one point. Large metal doors kept sliding down, trying to seal them in. Black and red robots moved out at crossroads in the corridors, making a suicidal effort to kill them. Sonic smashed them to pieces easily. Finally, the whole corridor behind them filled with explosions that continued towards them. They finally reached the hangar, and the door sealed behind them, keeping the fire from reaching them. A large electronic clock on the wall said 00:30. There was only thirty seconds left! They got in quickly and took off. A few seconds after getting out, a huge explosion came out of the towers, bridges and the mountains on and around the fortress. The towers collapsed inwards, breaking any bridges that still stood and smashing into the base, before a giant blast emerged that sent some debris flying. A large amount of smoke and some fire came from the crater created from the blast. They watched the blast from the helicopter. Sonic looked for and listened for any sign of a plane as he looked out the open door on the side. Nothing came out. He turned towards everyone and shut the door as he pulled himself in. He smiled at them.

"It's over guys, it's finally over. Let's go home." Sonic said. Everyone smiled and the helicopter flew towards Tails' workshop. Little did they know, it was far from over.