"Is that anyway to greet an old friend?" asked Neo Metal Sonic, crossing his arms and tapping his foot. His glowing red eyes betrayed no emotion, and his face bore no expression, just as he was designed. The robot's long headpiece, sturdy appendages and black cape seemed to hearken back to his brief stint as the Metal Overlord who took control of Dr. Robotnik's battle fleet before merging with it to become a giant engine of destruction.

"Last time I checked, we were never friends!" Sonic retorted.

"So THAT'S the real Metal Sonic?" Wave asked in awe.

"The one and only!" the Badnik laughed.

Shadow suddenly felt an all too familiar chill through his body. He grits his teeth in anger because he knew what that meant… "Come out here and show yourself! I know you're here Black Doom!"

Everyone around him gasped in shock. "Oh no…" Cosmo whimpered.

"Oh yes." Black Doom floated down from the ceiling and landed next to Metal. "Did you miss me Shadow?"

"Don't fool yourself Doom! You're nothing but a horrible nightmare!"

"What? No one is giving me recondition?" said an eerier voice. A shadow slithered in front of Metal and Doom and it morphed into a humanoid figure that looked like Shadow but his hair and cloths were all white and he had blue skin.

"Mephiles," Silver spat, "What are you doing here? And we why are you even alive at all? Sonic, Shadow and I destroyed you in The Void!"

"It's not for me to say! I guess you've found out that the doctor was not involved at all."

"Wha-?" then Sonic understood, "Oh so now I get it! You gagged Eggman and tied him up, sick all these girls at me and took control of the Ark! Just one question: why?"

"For revenge of course!" Metal shouted, "All three of us have tried world domination, but you interfered and left us for dead, if we can't do it then now can. Not even those idiots the Cyniclons can stop us, and that can be done by use this giant bomb!"

Shadow's eyes widened as he realized what was happening. "You're colliding the Ark with Earth again!"

"Bingo," Black Doom answered. "I estimate you have about 1 and a half hour left before the Ark makes contact and Earth is destroyed. Enjoy the futility of your situation children, we know we are." With that, they all vanished.

"This just prefect," Knuckles stated, "This is total dajavu all over again!"

"What?" Techna asked, "This happened before?"

"Oh I remember!" Ririka recalled, "It did happen one year ago! I remember see this old man ranting on the TV…"

"…And everyone had had to evacuate in me summer school!" Zoey said.

"I still remember when Shadow and I stopped the Ark from falling," Sonic recalled…

One Year Ago…

The golden haired Super Sonic and the platinum haired Super Shadow shook hands for a well done job in defeating the prototype FinaleHazard that was planning to collide with the planet Earth. As they let go, Super Sonic looked up to the dead prototype, grinned as he shouted: "Did you really think you had a chance?"

"The answer would be, no!" Super Shadow said, crossing his arms, spat at the monster.

Super Sonic chuckled at that wisecrack. Super Sonic was relived that it was over. Super Shadow was wasting more energy then Super Sonic. Super Sonic gasped, as he noticed the ARK still falling.

They stopped the Chaos Emeralds, they defeated the FinaleHazard, but the Ark is still falling because of gravitational pull of the planet. Now what? There was only one way. They have the power, they have the responsibility. They both thought of one way that can stop it.

"No way that's getting through!" Super Sonic swore.

"Not while we're here!" Super Shadow added.

The two flew towards the colony in a golden glow. As they head toward the hurling colony, Super Shadow began to hear a familiar voice echoing in his head.

"Shadow…I beg of you…give Earth a chance…to be happy!"

"Maria?"

Super Shadow was snapped back to reality when Super Sonic yelled: "NOW, SHADOW!"

They reached out to each other's hands as a blue and yellow energy ball formed between their hands as they both yelled out: "Chaos… CONTROL!"

The ball burst into a huge blast that engulfed the entire colony. However Super Shadow's powers were growing weak, he had less experience handling his super form. The two had to hold their energy to keep the Chaos Control together, but now Super Shadow's power had almost depleted, Super Sonic noticed he was switch back and forth from normal to super. "Shadow! Your powers are weakening! You gonna be you okay?"

"Yeah… I just…" Before Shadow could finish, he was falling into the orbit.

Super Sonic had plenty of power thanks to years of experience in his super form, so he tried to fly toward him and catch him.

"What're you doing!?" yells Shadow.

"Saving your life stupid!" says Super Sonic.

His hands were so close to his, but then the Chaos Control took effect. Super Sonic and the ARK disappeared while Shadow hurled into Earth. All Super Sonic can do was scream his name.

"Maria…this is what you wanted, right...? This is my promise I made to you..."

End of Flashback

Almost everyone who was not present at that event was in silence. "Whoa… so that's what happened," Peach whispered.

"Hey wait! If Shadow fell into the atmosphere then who is he here?" Vector asked.

"When Shadow was falling into the Earth one of Eggman's robos rescued him. I found him and Omega here locked up in a base while I was treasure hunting," Rouge explained.

"To get to the point, how strong is the Eclipse Cannon?" Neptune asked.

"Eggman's used it before, he used it on the Moon and it was blasted into half!" Sonic said not noticing Sailor Moon's left eye was twitching. "The only way to stop the Ark is by getting to the Cannon's Core."

"How can we reach the Core?" Musa asked.

Tails pulled out his palm computer to call up a holographic map of the colony and examined it for a moment. "There are a couple of routes we can use to reach the core, but its heavily guarded and we'll all have to work together to get through and stop the engines. I'll take one group, Rouge and Knuckles will lead another group, and since Sonic, Shadow and Blaze are the fastest ones here, they'll have to race for the core." Anymore instruction was cut off by a loud rumble which almost knocked everyone off balance. "Let's get going! There's not much time!" Jet remarked. The others nodded and headed out, following their own maps to the nearest entrance to the core.

Background music: Scramble for the Core Sonic Adventure 2

Tails, Cosmo, Gamma, Omega, Tikal, Chaos, Cream, Amy, Big, Ririka and Sakura got to the start of the path to the core. Sonic spoke to them over the communicator. "Ok you guys, your job is to get to a security door and blast it open so Rouge and her team can get in."

"No prob, Sonic!" The all walked down a short hallway and came to a room with a door at the other end. In the middle of the room were a couple of swinging maces. Right in front of them was a metal disc placed on the floor. Floating above the disc was a large round clock with two white rings around it. Ririka shot the clock with Angel Beam. It started rotating, ticking. The maces stopped moving. They walked quickly through the metal balls as the ticking got faster, making it through the door at the end of the room before the maces started again. They walked down a corridor that curved to the left, killing a Hornet, and came out into a chasm. They dropped from the doorway and onto a platform. Across a short gap was the beginning of a catwalk. They managed to hover across the gap and walked around the winding catwalk, killing the various Hornets and Hawks that shot at them, finding a door and a time switch. Several lasers moved in front of the door. Tails shot the time switch, freezing the lasers. They jumped over them and went through the door. They followed the next corridor as it curved to the right and paused. The hallway continued forward a bit, ending in a door. In front of the door was a pair of falling weights, one before the other. There was a time switch in front of them, but they all knew they had to hit the switch at exactly the right time, since the weights never fell at the exact same time. When both weights were halfway up or down, Ririka shot the switch and walked under the weights, going through the door before the timer ended and they fell. They found themselves was in a room with a falling weight blocking the exit door. The time switch was on the right hand wall. Gamma shot the switch and they ran under the weight, going through the door. Several floating Artificial Chaos hovered around the shaft, firing lasers. Omega locked onto the robots and fired missile blasts, destroying them. The platform stopped in front of a catwalk leading to a door. They went through the door and were in another large room with toxic waste and block portals. They saw a ledge held up by some pillars near the left side of the room and thought she should try to get there. They waited until some blocks were in the arrangement of a sort of staircase and shot the nearby time switch, freezing all movement in the room. They jumped across the blocks and got to the ledge as the timer went off and movement resumed. They saw another, higher ledge on the wall at the end of the room. Cosmo pointed out that there was something on it, but she couldn't quite see what. They waited for the blocks to be lined up with the ledge and shot a time switch attached to the far wall, freezing everything. As the timer ticked down, jumped across the blocks, landing on the ledge as time ran out. They saw there was a large door on the wall it was shut tight, just like it was last year. They unleashed their attacks on the door and destroyed it. Sonic came on the radio. "Wait a go you guys! Rouge and her group are on there way now, you'll have to monitor from here on."

Ririka wiped her brow, "Okay, let's just get to the Core and hope the others can pull the rest of this off."

Background music: Cooperation Sonic Adventure 2

Rouge, Silver, the Chaotix, the Love Angels and the Mew Mews had gone through the security door Tails and his team blasted open. A second door had risen behind it, but it could open just by approaching it. They were now in a large cylindrical room. In the middle of the room was a large circular platform with four tall pillars of varying heights, each with metal blocks placed around them at different places. In the center of the room was a large red button under a glass dome. High on the wall of the room was a passageway sealed by bars. Yellowish water rushed from the passage and down to the floor, forming a shallow moat around the middle platform. There were two other doors in the room, one behind the waterfall, one at the other end of the room. "Rouge, you and your team's objective is to drain the core of the water. This will enable Knuckles and his team to do their part. All you have to do is hit the big button in the middle, but to do that you have to find the switch that opens the glass case."

"Got it, Fox Boy. We'll get the job done." They saw a time switch on top of the tallest pillar. Rouge spread her demonic wings from back and flew to the pillar. Both doors opened. Rouge jumped off the pillar and glided down to the waterfall, following the others through the door behind it before it could close. They were in a large room full of toxic waste and block portals. There was a hallway on the right wall, but blocks kept moving over it. A time switch sat beneath the hallway. Corina used her trusty Heart Arrow and shot the switch when a block moved away from the hallway, freezing everything. They glided through the hallway. Ahead of them was a path littered with Shield Hunters and moving blocks from block portals. Daisy used her Rainbow Lip Liner and cut them into pieces. They went through the door and found a time switch and a normal switch. They hit both switches and ran back the way they had come, working their way past all the blocks and the toxic waste room, running out through the door leading back to the main room just before the timer ran out and it closed. They ran to the middle of the room, where the big red button was now exposed. Rouge hit it. Water started to flood from the waterfall passage. They quickly ran to the security door and got through it as the water level started to rise. Tails contacted them. "Good job guys! Go to the Core and rest, Knuckles and his team are on they're way over."

"Roger that, we're coming." Peach answered and switched off the communicator. Rouge was smiling behind them. 'I wonder if I'll run into Knucklehead on the way back. Maybe he could use a little kiss for motivation.'

Knuckles, the Winx Girls, the Babylonians, and the Sailor Scouts were now in the same room Rouge and her team had been in, except it was now completely filled with yellowish water. Knuckles listened to his instructions from Cosmo. "There is a red button somewhere behind where the water is flowing from. The button will open a door for Sonic and his team outside of your current area, allowing them to get directly to the core and stop the colony's crash course. Can you do it, Knuckles?"

"No worry's, we've got this one covered." Knuckles gave the Babylonians and the Sailor Scouts water breathing devises, with the exception of the Winx Girls who could already breathe underwater. They jumped in and started the search for the red button. They swam to the highest pillar in the room and went to the top, hitting the time switch at the top. Both doors in the room opened. They swam down and went through the door Rouge and her team hadn't used earlier. They got through the door just before it closed. He swam up a shaft and surfaced in a pool of water at the beginning of a hallway. As they got out of the water, he saw a time switch and a grid of laser bars blocking the far end of the room. Bloom hit the switch, turning off the lasers. They ran down the hallway and got past the deactivated laser emitters just before they switched back on. They were now trapped, standing on four iron crates set in the floor. They flew into a hole into the ceiling where they found a hallway that ran back over the one that he had just been in. Then they saw a normal switch and a time switch. They hit both and ran to the end of the hall, smashing through the iron crates in the floor. They dropped through a hole and landed in the water-filled shaft he had used before. They quickly dove in and swam to the bottom and through the door before it could close. They were back in the main room. They looked around and saw that the grate over the former water passage was raised. They swam up and through the passage, diving into a hole in front of another grate. They were now in a large shaft with several rotating lasers on the walls and a pit of toxic waste at the bottom. Sitting in the toxic waste was a time switch. Knuckles swam down past the lasers and hit the careful not to hit the toxic waste. A door opened on the wall next to him. They swam through the door before it closed and was in another tunnel. Ahead of them was a time switch, and a grate was at the other end. They swam forward and hit the time switch, raising the grate and also opening the door behind him. They quickly swam through the grate before it closed, and was in a room with another time switch and a large red button. Mars pressed the button. Nothing seemed to happen, but that's because it affected something somewhere else. They hit the time switch and quickly swam through the grate and door, then began heading up the tunnel. Cosmo called them up. "Excellent work, everybody! Now head to the Core and take a rest. Sonic and his team are on the final assault as we speck."

"That's good, I'll need to fix my make up," Wave remarked.

Background Music: Deep Inside Of… Sonic Adventure 2

Sonic, Shadow, and Blaze started through the door that had opened when Mars had hit the switch. "Is this it, Tails?" Sonic asked over his comm. watch.

"Yes, this is the last support of the path to the core. It's all up to you now, guys."

"How opportunistic. Isn't it always?" He said in sarcasm. They ran down the hallway ahead of him. A Shield Hunter immediately confronted them. Shadow killed the robot with Chaos Spear and came to the end of the hall. A large tunnel waited ahead of them. They jumped onto a rail before them and started grinding down its length, avoiding everything from enemy fire, spiked balls, and spinning lasers as they grinded down the extremely long rail. After spending maybe five minutes on the dangerous rail, they reached its end. They dropped from the end and landed in a room with little ledges on the walls and a door with a time switch in front of it. Blaze hit the time switch. The door raised then immediately began to lower. They Spin Dashed under the door before it could close and found themselves at the top of a long ramp. They started running down the ramp, and went through five loops in a row before launching from a jump ramp at the end of the path. They started to shoot past a pulley. They grabbed it and were lowered down a shaft. When the pulley stopped, they dropped to a ledge in front of a door. Unfortunately, the door wouldn't open. They looked behind them and saw a floating blob of Artificial Chaos. Sonic used a Homing Attack to destroy it, then immediately used a backward Homing Attack to get back on the ledge. They tried the door again, and this time it opened. They went through and were now in a large curving corridor with several strange ornate floating blocks and block portals with big floating blocks. The started working their way around the dangerous blocks and mowed through several Shield Hunters in his path. After a few minutes of block dodging and Hunter smashing, they jumped to the ledge and passed through the door. This next room had another rushing stream, this one going into a tunnel. Seeing no other way out, They jumped in the stream and was knocked flat butts/tail as the water swept down the tunnel. As the water went through the tunnel, it suddenly sloped down, speeding up and rushing through many twists and turns. The jumped off the last moment and ran through the final door, and entered an incredible chamber, where everyone was waiting. "Hey you guys made it!" Silver said, "There's still time to stop the Ark. Any ideas?"

Shadow look around and saw four switches on each corner of the chamber. "I'm sure those switches should pull the Ark back into a stable orbit. But they'll have to be struck out the same time." Sakura, Ririka, Saturn and Kikki ran to the switches and pulled them down at the same moment. Sure enough the Ark immediately was being pulled back. Everyone sigh in relief but a dark scratchy voice was heard.

"So you all did make it…" They all spun around to see to see Metal, Mephiles and Black Doom standing there. "Not a surprise since this HAS been already done," the alien chuckled.

Without thinking, Ririka shot a blue beam at him, but he wasn't even fazed. "…RUP!"

"Is that all you have got?"

"Yes… and no?"

"In the immortal words of Nelson Muntz: HA HA!" said Mephiles doing a Nelson Muntz impression.

"Give it up already," Sonic declared, "We stop the doomsday program and made it permanent this time."

"Sonic… I have your thoughts," Metal reminded him, "And you know well enough that where there's a will, there's a way." With that he pressed a button and a huge deformed lizard appeared in the middle.

Knuckles' eyes widen, "WHAT? YOU REVIVED THE BIOLIZARD!!??"

"That's right; it's the final peace to our plan. Now behold," Metal held the CD upward, and the three vanished along the BioLizard. Another loud rumble was made and knocked everyone off balance.

Tails pull out his palm computer and hacked the satellite system. He saw a deformed dragon with a black head, a pale blue head and a metal head pulling the Ark. "Metal, Mephiles and Black Doom have fused themselves with BioLizard, used the DNA CD to increase their power and attached themselves to the Ark! I'll give you three guesses of what their doing!"

"We can't just stand here and watch this happen," Angel Lily cried, "We've gotta stop them!"

"The only way to stop something with that type of power is with the seven Chaos Emeralds," Tikal responded, "But we only have three of them."

"I was wondering what this was." Sailor Moon pulled out a red Chaos Emerald, Zoey pulled out a yellow Chaos Emerald, Bloom pulled out an icy Chaos Emerald and Wedding Peach pulled out a white Chaos Emerald. "We found them while trying to escape G.U.N."

"Sweet! Okay guys, you should back off some." The others nodded at Sonic and backed away a bit. "Alright anyone who can power up some more, do it now!" Sailor Moon was first. She held her hands to her chest and her transformation brooch disappeared all that was left was the Silver crystal. Her clothes changed and her tiara disappeared revealing a yellow crescent moon her forehead, she was Princess Serenity once again. The Winx Girls were next; they increased their power to the max by activating they're Charmix. The Love Angel were last, their outfits started change and blend in light. When it faded, they were wearing beautiful but powerful wedding dresses.

"Whoa!" Knuckles cried.

"Beautiful!" Blaze agreed.

Sonic, Shadow and Silver focused their powers to the Emeralds and absorb the power the power. Sonic clothing changed into a yellow and black jacket, a black t-shirt, black jeans and his long golden hair was free. Shadow's black trench coat was now red and his short black and red hair was now platinum and red. Silver once donned in his Kobe Bryant jersey, was now in his futuristic green clothing and his silver star hair was now pale green. They were in their Super Forms. They gave each girl part of their power so they meet the difficulty level.

"No way!" Uranus said.

"Now this is what I call power!" Pluto agreed.

"Alright, let's finish this!" Super Sonic commanded. With that they vanished.

Background music: Supporting Me Sonic Adventure 2

NIGHTMARE

They all reappeared in front of the dragon. "This is the last time you all go around with your lies!" Super Silver shouted.

Ha, ha! Back for more eh? Well the let's have some fun!

The dragons fired a loud shockwave of noise. "Hold on everyone! Wedding Bells!" Wedding Peach produced a band of bells and countered the noise.

You think you can stop us? We are all powerful! The blue dragon fires a changed up ball of light.

"Venus Crescent Beam Smash!" Venus used a more powerful attack. It was more like a Sprit Bomb. She throws it both attacks canceled out.

"Whoa! I'd I do that?"

"We didn't just give you part of our power just to have you fly; we also increased your powers to the max! It was the same thing I did with Tails and Knuckles when we fought against Metal Sonic MK3."

"Let me try! Deep Submerge!" Neptune unwilling unleashed a snake made of water. The snake struck the Nightmare hard. It howls in pain.

"Well if Neptune can do it… World Shaking!" Uranus unleashed a trilobite-like stone thing causing the monster to grimace.

Crash and burn! The black dragon unleashed rings of fire and streams of icy breath. Everyone evade it has Super Silver managed to throw some space trash and Super Sonic used Homing Spin.

"Sonic! We only have 4 minutes left until impact, hurry up!" shouted Tails over the radio.

"I'll handle it, Tails!" exclaimed Super Sonic. Just then Super Sonic gets blasted by a pink laser beam.

"Take a break Sonic; we'll give it some damage," Zoey said, "Strawberry Surprise!" She fires a shower a pink lights at Nightmare damaging it.

"Daisy Rainbow Light Shower!"

"Lily Dream Tornado!"

Angel Daisy summoned glowing rainbow colored meteors and Angel Lily summoned a huge tornado. Both attacks combined. Princess Serenity held the silver crystal out. A beam came out and hit the tornado. Before the tornado slammed into the Nightmare, it summons an invisible shield.

"Mars Firebird Strike!" Mars surrounds herself in the image of a phoenix and dashed towers The Nightmare and enveloped it into fire.

We bow it no one! The metal dragon fires a blizzard of black hearts causing everyone to scramble.

"Sun Burst!"

"Wave Attack!"

"Digital Wave!"

"Dragon Blast!"

Bloom, Layla, Techna, and Stella fired their best spells at the monster but it blasted it back.

Five minutes passed and everyone was still fight fighting hard. "Everyone!" Strom called on the radio, "60 seconds to impact, hurry up!"

Techna was getting frustrated but she noticed something on Nightmare's back. "This isn't working! That support unit must be its weak spot! If we destroy it we can finish this!"

"Okay girls, strike now!" Super Sonic called out, "I'll deliver the final blow!"

"Sun Burst!"

"Wave Attack!"

"Digital Wave!"

"Dragon Blast!"

"Angel Aid Bomb Beam!"

"Thunder!"

"Deep Surge Attack!"

"Tambourine Trench!"

"Heart Arrow!"

"Silver Slash!"

"Uranus Space Sword Blaster!"

"Neptune Deep Submerge!"

"Pluto Deadly Scream!"

"Silent Glaive Surprise!"

"Strawberry Bell Full Power!"

"Sailor Planet Attack!"

They all unleash their devastating blows giving the Nightmare a great deal of damage.

The Super Trio were last to go. As they focused, their bodies started to glow with a blinding light.

"Sonic Overdrive!"

"Shadow Chaos!"

"Silver Star!"

They fired huge golden, purple and green lasers, striking the Nightmare head on.

GUUWWWAAAAAA!!! Our destiny… you cannot destroy… our destiny…, was all they heardbefore it exploded.

Everyone cheered at their victory. "Yeah, we did it!" Kikki cheered.

"Yeah! They'll need to do better then that to beat us!" Jupiter agreed.

"Hey, is it just me or is it getting a little warm?" Renee asked suddenly.

"Warm? What do you-" Super Shadow looked down and suddenly saw that they were too late. They were just entering the atmosphere.

"We still have one chance. If we can use the Chaos Control, we can warp the colony back to its proper orbit!"

Super Silver looked at Super Sonic. "That's a big thing to transport. I wonder…" He looked at the girls. 'It's worth a shoot…' "Girls, listen up! Think happy thoughts! Think of all the happy thoughts you have!"

"WHAT?"

"JUST DO IT! When you're done with that, imagine yourself turning back the clock!"

So the did and everyone reached out their hands for a final command: "Chaos… CONTROL!"

Slowly, inexorably, the colony started to be encompassed by the rainbow glow. It vanished, reappearing away from the Earth, settling into its old orbit. Everyone cheered again.

"Yes! We saved the colony!" Sakura said.

"And on a top of that, we learn a new spell!" Stella said.

"I'm tired, let's get back," Saturn said.

Background Music: Stardust Speedway Good Future Sonic CD Japan

Two minutes later on the Observation Deck of the Ark, Sonic, Shadow, Silver and the girls revived back to their normal selves. Big had also found his Froggy and was playing it with Cream, Charmy and Hotaru.

"So, what happen to the threesome?" asked Tails.

Trista sighed. "Two of them were destroyed, but I don't know about Metal."

Serena cheered up, "At lest we known that we're not alone in the fight for freedom!"

Sonic nodded, "And at least I know that I've got back up!"

"Well, I guess we go home now," Wave concluded.

"There still a lot of days in summer left," Musa said, "We could chill in Australia for a while."

"Don't forget Sonic," Jet reminded him, "SEGA CRANIVEL is still comin up, so you'd better bring you're A game!"

"Oh but I always bring my A game!"

"Oh just can it!"

And with that, all the girls just laughed at the two rival's bickering.