Author Note: This story will be an AU of original one. The original universe take place during the Clear Cards arc.

Disclaimer: I don't own Sonic the Hedgehog and Cardcaptor Sakura


After fight Mecha Sonic to get the Chaos Emerald but failed as he teleported away , Sonic carried Syaoran to the hospital, Sakura is worried about Syaoran after he get knicked out by Mecha Sonic. A Few day later everyone are here. Syaoran slowly open his eyes, Sakura see that as she hugged him suddenly cause he off guard and later he blushed.

"Sakura !?" Syaoran said in surprised

"I thought you die after you fight Mecha Sonic, Syaoran. Why did you make me so worried" Sakura shouted. Syaoran comforted Sakura while he feel a bit guilty about that he go alone.

"You guy look so Kawai when you are hugging" Tomoyo said cause both Sakura and Syaoran blushed madly as they realease the hug. Meiling left the room and meet Sonic outside

"So how is Li-kun anyway, Is he okay ?" Sonic asled Meiling

"He is wake up right now" Meiling answered

"That's good to know that he is wake up" Sonic sighed in relief before he walk into Syaoran room while Tomoyo stand behind him

"Hey Li-kun, how it going" Sonic asked politely. Syaoran stared at him for a while before he sighed

"I'm fine" Syaoran said frowned . It seem he didn't like Sonic but he started to respect him after Sonic save his life, he feel a bit guilty after he midjudge him as a Mecha Sonic henchman

"Well I guess all we need to worry about now is finding the rest of the Chaos Emeralds... " Sonic said before Kero fly to Sonic

"Tell me who exactly is Mecha Sonic and why does he want the Chaos Emeralds so badly" Kero demanded. Sonic frowned before he walk to the window, he think for moment. Sakura felt something bad happen to Sonic and his friend Tails, Knuckles, Amy and Cream and the others in his world. She had known his friends since Sonic told her about his adventure story before she go to sleep when she was young.

"What was I thinking? I should have told you about Mecha Sonic. I was confident we could find the Chaos Emeralds before he did. Then use their power to defeat him. But instead, I put another innocent life in jeopardy..." Sonic sighed before he turned to look at everyone

"I'm sorry I deceived you everyone. I think now is a good time to tell you the full story." Sonic said ready to tell them his full story

(fade to flashback of Mobius. Sonic, Tails, Knuckles, Amy, Cream, and Cheese rest peacefully)

"My home world was called Mobius. It was a lush, green and peaceful place. Most of the time, I would hang out or just chill with my friends. It was a very carefree lifestyle." narrated Sonic

(fade to a laboratory with Dr. Eggman)

"Carefree, that is... until the power hungry Dr Eggman came along." narrated Sonic

(Eggman laughs, pan out to Death Egg)

"His base of operations was within a huge floating fortress that orbited the planet. It was known as the Death Egg. Where he "hatched" many schemes to enslave Mobius by turning the inhabitants into his robotic slaves."

(shift back to Sonic in Eggman's base, with Eggman in a mecha-suit)

"I then took it upon myself to thwart his evil plans. Time and time again."

(Sonic defeats Eggman. Fade to black)

"Frustrated by the amount of defeats at my hands. Eggman then took a different approach..."

(switch to field with Sonic facing a robotic clone of himself)

"He then started sending robotic versions of myself. Hoping he could outsmart me..."

(Sonic defeats Sonic clone witha single punch. Fade to black)

"Naturally, they were no match for me. But the Doc was persistent. He continued to build upgraded versions, hoping that one of them would succeed."

(still in black, show three Sonic clones, pausing at the third one)

"However, There was one Sonic robot that stood out from the others and he was the one robot that I actually fought him in the past. He was named "Metal Sonic"."

(Metal Sonic's eyes glow. Switch to a platform in space, where Sonic give Metal Sonic a kick send him to the background)

"Even though I was able to defeat him, he had something the other Sonic Robots didn't. A strong will. He continued to rechallenge me, returning faster and more powerful than before. But still, I prevailed. Which only fueled his desire of finally beating me."

(Door opens briefly in the darkness, and Metal Sonic, silhouetted in shadow, enters. Door closes.)

"But, one night back at the Death Egg, everything took a turn for the worse..."

(light turns on. Metal Sonic is in a room with the previous three deactivated Sonic clones)

"He somehow managed to sneak into Eggman's top secret facility. That's when he made his move..."

(Metal Sonic and the other Sonic clones flash white. Lightning shoots out of Metal Sonic's hands. The four robots merge into another robot. The transformation finishes.)

"Metal Sonic merged with all of the older Sonic Robots except his clone one Hyper Metal Sonic as it's was in the glass recovering

, and transformed into one Super Robot. Turbo Mecha Sonic!"

(pan left to reveal an angry Eggman. Mecha Sonic turns his head.)

"But it didn't take long for Eggman to find out what was going on, and he threatened to deactivate Mecha Sonic for his disobedience."

(Eggman points a finger at Mecha Sonic. Zoom in on Mecha Sonic)

"But Mecha Sonic had become so powerful, he felt he shouldn't be taking orders from an inferior being. So he broke free from Eggman's control and became his own master..."

(Mecha Sonic summons a ball of energy. Eggman becomes frightened. Outside the Death Egg, explosions can be seen. The Death Egg descends. Flash of white)

"Nothing could prepare us for the day the Death Egg crashed into Mobius..."

(Scene changes to how Sonic on a hill, watching the Death Egg impact Mobius creating a large shockwave. Mobius is darkened by the explosion)

"The collision shook the entire planet, Shrouding it in thick black clouds that blocked out the sun..."

(Show Mecha Sonic on a hill.)

"Mecha Sonic somehow survived the explosion. Looking upon the carnage that his actions had inflicted. This sight triggered something within him, A lust for power and a thirst for destruction. But although his transformation made him stronger, he wasn't invincible. He needed the seven Chaos Emeralds in order to become complete. So he used the opportunity to search for them, as well as attack the helpless animals during the turmoil..."

(fade to black)

"Starting with my friends..."

(show Mecha Sonic holding Cream and Cheese by the neck as his gun is prepared)

"My friend Cream and Cheese, was his first victim..."

(zoom out, switch to Mecha Sonic holding a gun to an unconscious or dead Amy)

"Followed by Amy..."

(switch to Mecha Sonic hovering and holding a gun over a downed Knuckles after he kncoked him out)

"Not even Knuckles the Echidna was a match for him..."

(zoom in on Mecha Sonic, who shoots Knuckles. Fade to black)

"And my best friend Tails..."

(show Mecha Sonic teleporting into a field. Tails run into him, stop short, and stare in horror. Mecha Sonic takes out his gun. Zoom in on a terrified Tails, fade to white)

"They never stood a chance..."

(show Mecha Sonic in a burning field)

"Few hour later, I'm running to find my friends, i was shocked that all of my friends are dead"

(A shocked Sonic when he see his friends lay on the ground, He check their pulse but they are dead. He then see Tails who was survived Mecha Sonic attack but he in critical condition.)

"He warned me about Mecha Sonic that he started to collect the Chaos Emeralds, if he collect them all he will transform into his ultimate form and destroy the universe then he took his last breath"

(Sonic screaming his best friend name)

"more than half of Mobius was reduced to a burning wasteland. The inhabitants wiped out, and six of the seven Chaos Emeralds were now in Mecha Sonic's possession..."

(switch to a close-up of Sonic, holding the green Emerald, in the burning field, his fur turned dar blue as Mecha Sonic landed in front of him)

"The last Emerald of which was mine..."

(Sonic fur is turned into black as he scream in rage)

"I confronted him in what was to be my toughest battle yet. Since he killed my friends i was in rage as i transformed into my Dark Super form."

(They fight each other equally until Mecha Sonic absorb his Chaos Energy and start overpowering him, Sonic is weakened as he turned back to his Base form. The scene show of Mecha Sonic beating up base Sonic in midair through a double-kick, single-kick, and elbow. Show a downed Sonic, with Mecha Sonic standing triumphantly)

"I fight him equally until he absorb the Chaos Energy inside of me which i turned back to normal but i'm still fight him. Despite my best efforts, I was flattened, rolled up and tossed aside by his overwhelming power... "

(Mecha Sonic takes out the seven Chaos Emeralds which circle him. He bursts with energy)

"From this point, I could only watch as he started his terrifying transformation. That is... until Shadow my rival intervened..."

(Shadow appears from the right, touching the Chaos Emeralds, which disappear. Mecha Sonic loses his energy)

"Shadow used his natural ability of "Chaos Control" to warp the Emeralds to your world out of Mecha Sonic's reach. Thus preventing him from transforming him into his complete stage..."

(Sonic gets up on Mecha Sonic's other side)

"With the Emeralds gone, plus me and Shadow working together, we had pretty good odds of winning. But Mecha Sonic recover himself fast and get stronger and totally overpowered us.

(Mecha Sonic hovers and curls up. He flashes, three lightning bolts surging out of him, and disappears)

"He had other plan as he used the energy he had absorbed from the Emeralds to activate Chaos Control as well, warping to your world after the Emeralds and leaving us behind with no way of pursuing him..."

(door opens in shadow, Sonic and Shadow enter the same room Metal Sonic had before)

"We later returned to the wreckage of the Death Egg, and were fortunate to find the main control room completely intact. Along with Eggman's top secret database..."

(show Sonic and Shadow standing next to a capsule)

"After hacking into the system, we found top secret plans for a capsule that was powered by artificial Chaos Emerald energy that could help us warp to your dimension. We then built our own capsule using parts of the wrecked Death Egg that was left scattered around..."

(show the capsule alone, with Sonic and Shadow inside)

"After making our final preparations, Shadow attempt to hooked himself up to the capsule and used Chaos Control to send us to Tomoeda."

(the capsule hovers up and started to warps, but it interupt by something)

"But Suddenly we were attacked by someone, Shadow told me that he will hold them off. I have to use Chaos Control to send myself to Tomoeda left Shadow behind."

(Capsule fall from the sky and fall down to the mountains. Sonic leaped out of the capsule before it explode)

"And of course, you all know what happened after that..."

(Sonic curled into a ball and hit Mecha Sonic before he could finished an weakened Sakura.)

After Sonic tell his full story. Everyone are froze in shock about how cruel Mecha Sonic is. the tears fall down in Sakura eyes when Sonic friends that she adore Tails, Knuckles, Amy and Cream from his adventure story are dead.

"That cold monster" Syaoran mumbled as he clench his fist.

"I tries my best to save them but Mecha Sonic killed them before i arrived. This is allI my fault, i should have destroy him before he merge with another robot but i was so cocky" Sonic shouted

"Sonic-kun, you shouldn't blame yourself so much. It's not your fault. " Sakura said

"*sigh* I guess you are right. We have to find the Chaos Emeralds first and use them to destroy Mecha Sonic. if we don't act fast. If Mecha Sonic gets all seven Emeralds, all is lost. So, do you guys think you're up to the challenge?" Sonic asked the Cardcaptor gang as they are nodded. Syaoran get up from his bed and summon his sword

"Key which hides the powers of the star, Reveal your true form before me. I, Sakura Kinomoto, command you under our contract. Release!" Sakura commanded transform the key into her Star Wand.

"We will help you to search the Chaos Emeralds, Sonic-san" Tomoyo said

"Heh heh...you guy are awesome" Sonic commented. A Chaos Emeralds is glowing from Sakura pocket

"Uh Sonic-kun, what happen to the Chaos Emerald" Sakura said pulled the Chaos Emeralds out of her pocket. Sonic eyes widened

"The Chaos Emeralds, it's reacting. Another Chaos Emeralds must be in nearly" Sonic said as he take a look at it

"Hoe!"

"Come one we must hurry" Sonic exclaimed before he grabbed both Sakura and Syaoran wrist and jumped out of window.

"Hey wait for me" Meiling yelled before she run out of room to find the exit door in tthe hospital as Kero follow behind her

"Wish i could brought my camcorder to record them. I should get back to my house to wait for the" Tomoyo said before exit the room. Outside Sonic is running dragged Salura and Syaoran along in his back, Syaoran seem to has dizzy but Sakura is get used to having a piggyback with him so she doesn't has dizzy and headache. Sonic skidded as Sakura and Syaoran get out of his back, he look around check the Emeralds. Syaoran put his hand to his forehead

"Syaoran-kun, are you okay" Sakura asked

"I'm okay i just feel dizzy and headache" Syaoran said while he rubbing his head

"Sorry for about that, Li-kun" Sonic apologies before he spot something, it was a Chaos Emeralds but the figure look like Metal Sonic but the color is yellow landed beside it and pick it up.

"Is that Mecha Sonic" Sakura said noticer the robot.

"No It's Metal Sonic 3.0. It's a Mecha Sonic clones that Dr Eggman create it to destroy me after I defeat Metal Sonic many times. Now he is activated automatically" Sonic explained

Another robot that look like Tails and Knuckles appear beside Metal Sonic 3.0. Sonic, Sakura and Syaoran quickly hide from them

"Oh great now Metal Tails and Knuckles are here" Sonic whispered annoyed, both Sakura and Syaoran look at him in confusion. Sonic sweat dropped

"Yeah yeah, Eggman made more allies for Metal Sonic 3.0 to outnumbered me. I bet he created more but there haven't activated yet. That was his plan before Turbo Mecha Sonic appeared." Sonic explained rolled his eyes. Metal Sonic 3.0 notice something before he scan the area. He spot Sonic, Sakura and Syaoran are hiding

"So is Sonic the Hedgehog with his new friends are hiding fron us." Metal Sonic 3.0 laughed. Their eyes windened in shock but they calm down quickly. Sonic, Sakura and Syaoran jumped from the bus

"What will you do with the Emeralds, Metal 3.0" Sonic demanded point at them. Sakura and Syaoran glare at them

"Collect the Emeralds and destroy that traitor (Mecha Sonic) and killed you to prove who are the real Sonic" Metal Sonic 3.0 grinned before he and his allies got into fighting stance.

"Li you take Metal Knuckles, Saki you take Metal Tails and i take Metal Sonic 3.0" Sonic said

Sonic and Metal Sonic 3.0 collide in midair three times while everyone else jumps off . Metal Sonic 3.0 prepares to do a double-kick, but Sonic rolled out of the way and kicks Metal Sonic 3.0 underground. Sonic hovers in the air and Metal Sonic 3.0 jumps out of the ground and double-punches Sonic away. Sonic is sent flying, but is stopped by a wall. Sonic ducks to avoid a hit from Metal Sonic 3.0, and punches him up. The falling Metal Sonic 3.0 is volleyed between the wall and Sonic in three rotations, and Sonic Homing attack 3 times before he does a stronger punch which sends Metal Sonic 3.0 through the wall and to the ground. Sonic followed him.

Meanwhile Sakura use Fly and Mirror cards as both Sakuea and Syaoran have their own wing and fly up to face Metal Tails and Knuckles. They are attacking Metal Tails and Metal Knuckles. Metal Knuckles attempt to punch Syaoran, he is fast enough to block Metal Knuckles fist with his sword but he is sent flying to the ground Metal Tails shot many energy ball at Sakura

"SHIELD" Sakura create pink shield to protect herself from the energy ball. Metal Tails cancel his attack and started approach Sakura. "FIGHT, POWER" Sakura power up herself with her cards as Metal Tails charge at her. The two fight each other before Sakura hit Metai Tails with her wand send him to the wall.

"THUNDER" Sakura shoot the lightning bolt energy at Metal Tails cause an explosion, the wall rock is collapsed. Sakura fly closer to make sure Metal Tails is destroyed. Suddenly Sakura is hit by the energy ball and send her flying. Metal Tails fly out of the smoke and followed. Meanwhile Syaoran are fighting Metal Knucles with his sword

"God of Fire, answer my call" Syaoran summind the fire to the ground to blind Metal Knuckles eyes. Metal Knuckles begin to search him. Syaoran suddenly jumped from the tree and kicked Metal Knuckles in the face. He do some combo with punched and kico before he slashed Metal Knuckles with his sword knock the metalic robot into the wall.

Sonic run along with Sakura as she use Fly and Dash card. Metal Sonic 3.0 and Metal Tails chased behind them. Sonic perform Homing Attack at the two robot before he get kicked by Metal Sonic 3.0.

"FIREY" Sakura shot the fireball energy at them as Sonic use Spin Attack at Metal Sonic 3.0. Metal Tails use his Tails to create the wind to attack them

"WINDY" Sakura countered with her own wind as Sonic jumped up and create blue tornado to combine with Wind cause the robot are blown away.

"Sonic Storm" Sonic create energy wave hit Metal Sonic 3.0 and Metal Tails caused explosion. Metal Sonic 3.0 recovered and attempt to punched Sonic. Sonic managed to flip backwards to avoid being hit by Metal Sonic 3.0. Metal Tails shot the energy ball at them, Sakura blocked with her Shield

Back at Syaoran, he kicked Metal Knuckles into the tree. Metal Knuckes leaped from tree and use Thunder Arrow to attack Syaoran. He quickly use his sword to block Metal Knuckles attack but Metal Knuckles foot sweeped him and kicked Syaoran. Sonic is send flying by Metal Tails energy ball, Metal Sonic 3.0 followed him. Sonic recovered and curled into a ball. Metal Sonic also do the same as Sonic. They collide each other at lightning speed until Sonic kicked his copy robot away. Sonic then assist Syaoran as he use Homing Attack at Metal Knuckles head knock him backward

"God of thunder, answer my call" Syaoran summond the thunder bolt as it hit Metal Knuckles chest. Metal Sonic 3.0 interrupted as he kick Syaoran away, Sonic tornado kicked Metal Sonic 3.0 before he punched the robot away. Metal Knuckles slides on the ground and hits Sonic upwards when he comes near him. Syaoran comes in, hitting Metal Knuckles from the left. Sonic, Syaoran, Metal Sonic 3.0 and Metal Knuckles are kicked off repeatedly by each other. Metal Sonic 3.0 and Metal Knuckles are sent flying off toward the left. When they return on, Sonic and Syaoran hit both robots with a powerful punch. Metal Sonic 3.0 dropped a Chaos Emeralds, Sonic take a chance as he quickly caught it

Sakura dodge Metal Tails energy blast, she use Watery to hit Metal Tails, cause him off guard. She then kicked Metal Tails as she use Power card.

"THUNDER" She shoot thunder bolt knock Metal Tails away as the 3 copy robot collide each other. Sonic, Sakura and Syaoran landed safety on the ground

"Alright, give up now Metal Sonic 3.0" Sonic demanded at the three robots. Metal Sonic 3.0 stand up

"Heh, Heh. don't think we're beat yet, fake hedgehog" Metal Sonic 3.0 laughed. Metal Tails and Metal Knuckles are charging their strongest

"What are they doing" Sakura asked

"Alright metal boy let teach them a lesson" Metal Sonic ordered them as he charging for his strongest attack.

"Chaos Control" A voice shouted as the time stopped, a black hedgehog appear as he punched and kick the metal robot. As the time back to normal the robots are knocked away.

"Chaos Spear" the black hedgehog shoot many lightning bolts at them caused a large explosion. When the smoke die down they escaped from him

"Darn it, they escaped" the black hedgehog growled.

"Shadow !?" Sonic said shocked when his rival also got in this world.

"Oh it's you" Shadow sighed lowed his arm.

"How did you got here" Sonic asked him.

"I was fought those metal robot after you entered the capsule as i told you to go first. I lose a lot of my energy after i use Chaos Blast, they were dodge my strongest attack and start attack me. The only way is i used Chaos Control with the remaining of my energy to send me into this world but it also transport the metal robot into this world as well." Shadow explained

"Wait, you were in this world in whole time !" Sonic shouted

"Yes, I has to rest in order to recover the Chaos Energy inside of me until now" Shadow said

Sakura realized the black hedgehog is Shadow. He is Sonic rival when he tell her about the space colony ARK event.

"Are you Shadow the Hedgehog ?" Sakura asked Shadow

"Yes and Who are you" Shadow asked

"My name is Kinomoto Sakura and this is Li Syaoran or just call him Li" Sakura introduced, Syaoran give Shadow a glare, Shadow glare back at him

"Sonic, Did you get the Chaos Emeralds ?" Shadow asked turned to look at Sonic. He show Shadow a Chaos Emeralds

"We have 2 Chaos Emeralds, 5 left. Alright guy let head back to the city" Sonic said as both Sakura and Syaoran nodded

"What city ?" Shadow asked confused

"Tomoeda, you will see" Sonic said before he rise his Emeralds

"Chaos CONTROL" He shouted as everyone disappeared.


Team Metal (Metal Sonic 3.0, Metal Tails and Metal Knuckles and more): Team Metal are the copy robot created by Dr Eggman. After original Metal Sonic was defeated by Sonic many time he decided to create Metal Sonic 3.0 and the other robot such as Metal Tails, Metal Knuckles and more called Team Metal to outnumber Sonic, he decided to take them to the secret room. After the original Metal Sonic fused with three previous robot to become Turbo Mecha Sonic, Team Metal are activated as they begin to attack Sonic and Shadow as they prepare to go into Sakura world. They are transported into Sakura world with Shadow, they have new mission, they must collect 7 Chaos Emeralds to destroy Sonic and the traitor Mecha Sonic.