Sonic Underground X

Alien-Child: I know I'm FRECKING late, sorry,hHad things on my mind. Anyway guys, hope you all enjot the latest chapter.

Earth Saga

Sonic Vs Knuckles

High in the mountains, Knuckles stands at a Cliffside looking out at the clear view, ignoring the chilling winds that blow against his fur.

"You better come in before you get a cold!" Aleena warned as she step outside a cave.

"I'll be fine..." Knuckles muttered, and Aleena shrugged as she went back in.

"I still remember that day..." Knuckles thought to himself.

Six Months Ago

High in the sky, is what most people even in the planet Mobius would never believe, a floating island. Here, despite Robotnik's pollution of the planet, the island is healthy and strong, being a tropical paradise with mountains, lakes and everything of the like. And of course being in the sky, one needs to be able to fly to get here, or use a flying vehicle like the Sonic Underground are using.

"Hang loose Sonia!" Manic shouted from within the flying van.

"Duh!" She replied, "But what if mother really is here?"

"She better be!" Sonic stated, "I miss an opening of a new chilli-dog stand for this!"

"I can make you a chilli-dog Sonic!" Amy said.

"Guys, we're here!" Tails shouted.

And with a THUD! The vehicle landed on the grass, while sliding the doors away, making a pair of steps. And all five of the Sonic Underground exited, while the lead singer looked around.

"This is the dreaded floating island?!"

"Oh, I'm so scared!" Tails added, and the two laughed together.

"Sonic! Tails! Remember what the Oracle said," Sonia scolded, "Floating Island is frought with danger, Beware the echidna!"

"Frought? What kind of stupid word is that?!" Sonic replied.

"Frought means filled, as in 'Filled with Danger'!" Tails replied.

"See Sonic, don''t take the island so lightly!"

"What danger sis? If you're so worried, I'll check the place out!"

"SONIC!" Sonia shouted, but her brother ignored her as he started revving, but when he entered a bush, he was screaming.

"SONIC!" The four shouted as they ran into the bush, and saw the blue hedgehog hanging in a tree, by a net.

"Hey guys, just hanging around!"

"We'll say this Echidna: 1," Manic stated, "Hedgehogs and Fox: 0!"

"Hang on Sonic!" Tails shouted as he flew up and used a knife to cut the net down.

"AAAAHHHH!"

"I'll catch you Sonic!" Amy shouted as she dashed for the fallen hedgehog, but then she began to realize she be squish.

"AMY!" Manic shouted as he pushed the pink girl away, and got squish by Sonic instead.

"Whoa, thanks for the landing-pad bro!" Sonic said as he got off the flatten Manic.

Elsewhere...

"BRAAAAAAAA!"

"Something up Chomps?" A red echidna asked as he steps out of a bunch of bushes, and stares at his pet dinosaur, roaring downwards, on a path. "What is that?" Knuckles narrowed his eyes as he look at a figure, but the distance and the bright sun seems to make it hard for him to figure it out. All Knuckles can make out is that it seems to be a hedgehog of sorts, and blue. "Whoever you are, GET OFF MY ISLAND?!"

The creature stood there silent for a few seconds, but then some explosion behind it can be heard as it vanished in a flash.

"Wha-OOF!" Knuckles was caught off when he felt something slam a fist into his chest, causing Knuckles to fall to his knees.

"Gra!" Chomps growled, but something spin dash into him, tossing him into a tree.

"CHOMPS!" Knuckles shouted as he looked up to find the attacker, but he's gone. "Who was that? And why is he here...THE EMERALD?!"

Angel Island Zone

"This place is so beautiful..." Amy said as she and the group walked through the trees and wrapped her arms around Sonic, "This'll make a great honeymoon, huh Sonic?"

"Huh..."

Before Sonic could make a reply, Sonia grabbed her by the back of the dress, "What have I been telling you about hitting on my brother?"

"Oh come one Sonia, if we get married, we'll be real sisters!"

"Still, SONIC?! Amy , you got have more better taste then that!"

"HEY!" Sonic shouted causing Tails and Manic to laugh.

"She got you there bro!" Manic laughed and as he stared at Amy talking with Sonia, he began to imagine the young pink hedgehog in front of a flower field and birds tweeting.

"Manic..." Amy in Manic's head said, but had Tails' voice, "Hey MANIC!"

"Huh?" Manic brook out of his daydream and saw Tails staring at him, "Huh...guess I was on a snooze-cruise I guess!"

"Hey, that's my line!" Sonic exclaimed.

"...What's does that mean?" Sonia asked cock-eyed.

CRACK!

"Huh?" The five turn to a geyser that rose upwards and out came a flash of red that landed his fist to the ground, causing a earthquake.

"YEA!" They all shouted as they tumble to the ground.

"Lousy Hedgehog Thieves!" Knuckles growled as he spun his arms around.

"Hey buddy, we're not thieves!" Sonic snarled as he stood up and then stared at Manic, "Well...most of us are not!"

"And I'm a fox!" Tails stated.

"YEARGH!" Ignoring Sonic , Knuckles charge as punch him into a tree.

"Whoa, dude has some moves!" Manic said as he and Tails helped him up.

"Hey Manic, if you're starting to make a fan-club," Sonic replied as he stood up, "Here comes you're hero!"

"SONIC!" Amy shouted as she brought out her hammer and smashed Knuckles into a boulder, "No one does that to MY Sonic!"

"I'll never win..." Manic sighed, but then he opened his eyes as he heard some rumbling and a barrow heading towards Amy, "WATCH OUT!"

"YEARGH!" Knuckles bursting from the ground tried to smash his spiked knuckles into Amy, but because Manic pushed her out of the way, it was the green hedgehog who got jabbed in the stomach.

"Ok bud, now you're asking for it!" Sonia charge with a spin and headed towards Knuckles who dodge and tried to make a punch but Tails held it back letting Amy smashes his feet.

"AHHH!"

"Hold him still guys!" Sonic shouted as he began revving and charge into Knuckles making him fly into a tree. "Too EASY!"

"Argh...I'll never beat them like this!" Knuckles snarled as he got himself untangled from the branches, "There's too many...Guess it's plan B!"

"so you ready to give up?" Sonic smirked with his cocky grin as Manic and Sonia stood beside him in fighting poses, Amy beside Sonia with her hammer ready and Tails was in the air beside Manic, "Cause you'll never win against all of us!"

"Agreed!" Knuckles replied, surprising all of his opponents, and Knuckles took this as an advantage as he glide towards the group and swipe Tails.

"TAILS!" Sonic, Sonia and Amy shouted in unison.

"How the hell is an echidna flying?!" Manic question, but he shrugged as he followed the group chasing after Knuckles.

"Let me GO!" Tails shouted.

"In due time!" Knuckles relied as he landed on a mass of land on the other side of a bridge, where he watches Sonic and the others enter. "Unlike you friend here, I know neither of you guys can fly!" Knuckles shouted as he got out a knife and sliced the rope bridge.

"AAAAHHHHHHHH!" Most of the hedgehogs shouted as the bridge began to fall, but Sonic with his high speed was able to cross it before Knuckles can slice the ropes.

"GUYS!" Sonic shouted as he forgot about Knuckles for the moment and turn to see the three hedgehogs fall down the pit. "SONIA! MANIC! AMY!"

"They're alive...for now!" Knuckles said and Sonic turned with pissed off eyes, "I'll let them go if you leave...NOW!"

"How about this!" Sonic shouted as he thrust his fist towards Knuckles, who was prepared to block it, but a stab his back brook his concentration, making the fist collide with his face.

"That's for MY FRIENDS!" Tails shouted as he got himself free and attack Knuckles from the back.

"Alright Tails, let's deal with this creep together!" sonic shouted and the two got into a fighting stance as Knuckles stood up and glared at the two.

"I admire your courage...but it means nothing against me!" Knuckles stated, but the duo said nothing but charge at Knuckles who charge back, and they collided into flashes of blue, yellow and red.

Sonic X Card

Name: Eggman

Age: Unknown

Trait: Human

Special: Mass IQ

Bio: Evil Ruler of Robotropolis and Mobius, Threat to Earth

Sonic X Card

Name: Mecha Sonic

Age: Few Months

Trait: Robot-Hedgehog

Special: Sonic's skills, Robot Arsenal

Bio: One of Eggman's attempts to defeat Sonic and retrieve the Chaos Emeralds

"Ooh..." Manic groans as he begins top opens his eyes and be greeted by starry ceiling. No...those aren't stars, for one thing the entire sky is rock, so it's a cave ceiling so those 'Stars' are some crystals.

"Manic?" Amy asked as she came into view, but was surprise when Manic wrapped his arms around her.

"Oh thank god you're ok!"

"Oh, Manic it's so nice that you care!" Amy smiled, not fully understanding Manic's feelings, "SONIA!"

"Yeah...I'm here..." She groan as she stood up and look at her clothes, "MY NEW DRESS!"

"Oh..." The two other hedgehogs cringed, and soon it felt like things were getting hot, but not from lava...but from Sonia.

"HE'S GONNA GET IT!" Sonia snarled into the air as flames erupted from her.

CLANK! CLANK!

"Shhh!" Manic hushed, "You guys hear something?"

CLANK! CLANK!

"Yeah...sounds like something metal..." Amy whispered, "Like a robot!"

CLANK! CLANK!

"And it's coming closer...it might be one of Eggman's!" Sonia stated as the three of them looked down a hall and saw a shadowy figure come closer...and closer...and when if go close enough, the trio got to see a hedgehog shape they recognize.

"SONIC?!" Manic asked cock eyed, "Dude what's with the metal boots?"

"SONIC! I KNEW YOU'LL SAVE ME" Amy squealed as she was about to charge to the hedgehog, but a hand grabbed her dress, "SONIA! Not Again!"

"That's not Sonic..." Sonia muttered, and soon the creature came out of the shadows to reveal it's not organic, but a metallic version of Sonic that's bigger and taller.

"Subjects Confirmed: Sonia the Hedgehog...Manic the Hedgehog...Amy Rose...Terminate!"

"WHAH!" They all shouted as they dodge a missile fire from Mecha Sonic's arm cannon.

Angel Island Zone

"TAKE THIS!" Sonic yelled as he curled into his homming attack and smashed Knuckle in the skull.

"My turn!" Tails said as he spun around in a tornado and trip Knuckles with his tails.

"Whoa...WHOA! WHOOAAAAAA!" Knuckles shouted as he began to stumble and fell off the ledge of the island, but when he was almost passing the grass-level, something caught his arm and he looked up to see Sonic who was carried by Tails. "You...saved me?"

"Last time, where's my friends?!"

Later...

"I've always been alone here, so I'm not too trusting on outsiders," Knuckles stated as he, Sonic and Tails were sitting by a fire, "so when I saw that hedgehog, I thought he was you!"

"But Sonia and the others will be alright?" Tails asked.

"I doubt nothing dangerous is in those tunnels," Knuckles replied.

"Wait, what about that other hedgehog you said?" Sonic asked and Knuckle opens his eyes wide as he turns to a pool of water. Soon the ripples begin to form and show Manic, Sonia and Amy all weaken and on the ground .

"WHAT HAPPEN TO THEM?!" Sonic shouted.

"That..." Knuckles pointed to another image that showed Mecha Sonic speeding down the hall.

"That's a robot that looks like Sonic!" Tails exclaimed.

"One of Robotnik's new toys!" Sonic snarled.

"Come on!" Knuckles exclaimed as he got up, "I know where it's headed!"

Hidden Palace Zone

BOOM!

The large stone walls had been blasted open as Mecha Sonic walks through. If he had an emotion, he possibly would have gaze at the ancient structure he's in, but he cared not as he stomps through the large steps. Soon he came to an ancient alter, with eight pedestals, one large then the other seven. And on each one, was a gem of different colour, except for the big one which shares the green colour with one of the smaller ones. With its target locked, Mecha Sonic stepped towards the Master Emerald.

"STOP RIGHT THERE!" A voice shouted, and Knuckle with Sonic and Tails charge through the doorway, but it was too late cause the robot places his hands on the emerald...

FLASH!

"What's...happening?" Sonic asked as he and the two others shielded their eyes from the light.

"He unleashed a super form!" Knuckles exclaimed, and when the light faded, Mecha Sonic did not stood but floated in mid-air as his blue metal plates been changed to golden and strong chaos energy surge through his body.

"Hey buddy, Blue was much better!" Sonic shouted, and he revved his legs and charge at Mecha Sonic, but the robot felt no damage after Sonic repeatedly made punches and kicks. After a while, Mecha Sonic thrust his arm at Sonic, knocking him to the wall, and a golden aura engulfed him as the Super Mecha Sonic flew through the ceiling and into the sky.

"How are we going to beat him now, he runs on a Master Emerald?!" Tails exclaimed.

"Hate to admit it...but Eggman seems to have built the most invincible robot yet," Sonic groans, "I even have trouble beating it!"

"I know I'm going to regret this..." Knuckles groan as he stared at the remaining seven emeralds, "But we have to defeat that thing before it's too late, but we can use the Super Emeralds!"

"The what?!" Sonic and Tails asked in unison.

Lava Reef Zone

"Ugh...you guys ok?" Sonia groans as she got up and looks over at her teammates.

"Yeah...I'm fine," Amy snarls as she picks ups her hammer, "But when I get my hands on that FAKE-SONIC! He's so SORRY!"

FLASH!

"AAAAAAAHHHHHHHHH!" Soon from the nearby tunnels, loud screaming and flashed of light can be made out.

"What is that?!" Manic asked.

"It sounds like Sonic and Tails!" Sonic exclaimed, and at that second, three flashed of light burst into the sky, and their colours were of pink, gold and white.

Sky

"Yes...destroy it...Destroy it all!" A demonic voice laughed inside the robot's head, as Super Mecha Sonic floated in the sky as he charges an energy ball within his palms. But right in the middle, something of flashing colours punch him on the side of the head, causing him to fly in the air. This shouldn't happen, cause the Master Emerald should make him immune to anything! And as he get a view of his attacker, you could have sworn you seen his eyes widen is shock at the sight Sonic now flashing colours, mostly white, Tails flashing gold with super flickies flying around him and Knuckles who was now glowing pink. Sonic and Knuckles have reached their Hyper forms, a level higher then Super Mecha is currently at, only Tails was at the same level as he is, but that won't matter right now.

"You know you're ass is going to get kick don't you?" Hyper Sonic grinned, and before Super Mecha Sonic can make a movement, the trio vanished and Hyper Sonic appeared to slam his leg onto Mecha's head, making him fly downward. As he got control of himself again, he lost sight of Hyper Sonic, but Super Tails appeared and shoulder barge into Super Mecha's chest, and vanished again. Now it was Hyper Knuckle's turn as he appears from under and slammed an uppercut fist into Super Mecha Sonic's jaw. As the robot go himself in control again, he snarled as he tried to trace anyone of them with his visor, but when he gets a lock on one of them, another just appear and attacks him, causing him to fly through the sky.

"We got him on the run!" Super Tails exclaimed as he appeared.

"Then let's finish this!" Hyper Knuckles stated as he appeared beside Super Tails, and Hyper Sonic appeared between them.

"I agree with you for once Knucklehead!" And Hyper Sonic held his hands together and Hyper Knuckles and Super Tails did the same, and soon energy began to gather.

"CHAOS ENERGY:...20%" Super Mecha Sonic beeped as he crawled out of hole he made when he crashed into Angel Island's mountain. HE has to finish this fight somehow, the Master Emerald maybe the strongest source of power in the world, but it doesn't last forever, it too needs rest at times, and those three won't give it enough time. And as Super Mecha Sonic looked upwards, you could have sworn he was groaning at the sight of an energy ball flying towards him.

BOOM!

"Is he gone?" Super Tails asked as he and the Hypers landed on the mountain, right as the smoke cleared, revealing the Master Emerald on the ground, but no robot.

"Yeah...he's gone..." Hyper Sonic smirked, but then he returned to his normal form as seven lights burst from the three of them and into the sky. "What was that?"

"...They've been unleashed!" Knuckles sighed.

Present Day

Still staring into the sky, Knuckles sighed. "It was that day that unleashed the Chaos Emeralds around the world. Luckily they aren't the Super Emeralds since they lost that power unleashed the Master Emerald grants it to them, but...it was my fault the Chaos Emeralds are around Mobius and now this world...it's my fault Eggman could get his hands on them...and it's my fault we're here now..."

End Chapter

(Play Believe in Myself)

Hey guys, it's me Tails! Next time we're back in the present, and this time we found the next Chaos Emerald! But we've got trouble when another hedgehog appeared, who is he and is he an ally? Not only that, my good old friend, Cyrus has made it to this world too! Next time, in 'Earth: Friends, Enemies and Those Guys!'