Crossover Chapter 2: The Toughest Challenge.
Eggman was walking through his base with many medical things attached to him.
"That blasted royal hedgehog! After what she did to me, she is going to get much more than just one of my average attacks!" he said as he started working at a computer.
"What do you intend to do, boss?" asked Cubot. Eggman turned to him with an evil smirk.
"All will be revealed, tomorrow." he said. Meanwhile, at Aleena's castle, Aleena was fast asleep and had a dream. She was in a black space when she saw Sonic.
"Hey, Sonic!" she called as she ran over. Sonic turned and smiled at her before Eggman suddenly appeared from behind, knocked him out and dragged him away quickly. Aleena gasped before she ran as fast as she could. She caught up to Eggman, who had Sonic in a Roboticiser tube. Aleena watched in horror as Eggman pulled the lever and a green glow came from the tube. The next time Aleena could open her eyes, she gasped in terror as she saw Sonic with half of him made of robotic parts before her other three children appeared the same way.
"Kill her!" Eggman shouted. The hedgehogs raised their now gun-converted arms.
Aleena had tears in her eyes as she said, "Children. Please. I'm your mother." The hedgehogs didn't listen as they charged their blasts to full power. Aleena cried as she closed her eyes and screamed. She then shot up from her bed, panting and sweating. She looked around and breathed a sigh of relief before going back to sleep with a smile on her face. The next morning, Sonic woke up and came downstairs yawning.
"Good morning, Sonic." said Aleena as she placed a plate of eggs in front of him. As they were eating, Sticks ran in through the front door.
"Sticks? What is it?" asked Sonia.
Sticks caught her breath before she pointed out the door and said, "You guys might wanna check this out." The five royal hedgehogs quickly finished their breakfast and ran outside, where they were surprised to see a giant crater that many people were gathered around. Sonic and Aleena made their way to the front of the crowd and looked in the crater. They were surprised to see a man with spiky black hair wearing an orange outfit with a blue undershirt and black boots with yellow on the bottom. He looked badly injured and unconscious. Aleena slid to the bottom of the crater and walked over to him. She held out her hand and healed him. The man stirred for a bit before he opened his eyes. He looked and saw Aleena, Sonic, Sam, Sonia and Manic over him and he looked puzzled.
"What the?! Where am I?" he asked.
"You're on planet Mobius." Sonic said.
The man sat up and rubbed his head, "The last thing I remember, I was training and then there was this big flash of light and the next thing I know, I'm fighting this black and red hedgehog. He could, like, stop time or something." he said.
"Shadow?" asked Aleena.
"Is that his name?" the man asked as he stood up and dusted himself off.
"I apologize. We haven't introduced ourselves. My name is Queen Aleena, the ruler of Mobius." Aleena said as she took a bow.
"The name's Sonic." said Sonic with a thumbs-up.
"Manic." Manic said.
"Sonia." said the magneta hedgehog.
"I'm Sam." said the tan hedgehog.
The man smiled, "Nice to meet you all. My name is Goku." he said.
"You said a bright flash of light brought you here. What do you think caused it?" Sonia asked.
"I don't know. All I know is that I was training at my house, then this white explosion of light happens out of nowhere. Suddenly, I'm in the middle of somewhere I don't know and I wind up attacked out of nowhere by a black hedgehog. He ended up stopping time on me and catching me completely off-guard." Goku answered.
Suddenly, everyone heard laughing, "HOHOHOHOHOHOHOHOHOHOHO! So you meet at last!" said a very familiar voice. Everyone looked as Eggman appeared in his Eggmobile.
"Eggman!" Sonia said.
Goku looked confused before he turned to Sonic, "Friend of yours, Sonic?" he asked.
Sonic shook his head, "Mm-mm."
Eggman then wagged his finger and said, "Don't worry. I'm actually not here to cause you trouble today. A couple of familiar faces are going to do that for me." That's when Shadow appeared.
"Shadow?! What are you doing here?!" Sonic asked.
"The same thing two allies of mine are thinking of doing." Shadow answered. Suddenly, a tall squirrel in a pink gown came on scene.
"Alicia?!" Aleena said in shock.
"This time, I finally kick your butt, hedgehog." Alicia said, cracking her knuckles.
Manic then noticed something in the sky and asked, "Hey, who's the action figure?" while pointing to the sky.
Goku looked and his eyes widened as he asked, "Vegeta?!" The spiky-haired Saiyan Prince floated down beside Shadow and Alicia.
"Today's the day I finally beat you, Kakarot." Vegeta said.
"You brought them here, didn't you, Eggman?!" Manic shouted.
Eggman laughed before he said, "I did intend to bring Vegeta here, but I didn't count on my Dimensional Puller bringing Goku too. No matter, I get to watch three heroes suffer at the hands of their greatest rivals!" Sonic, Aleena and Goku looked at their three foes before smirking.
"Well, this should be entertaining." Sonic said, brushing his nose with his finger. The two sides glared at each other before they rushed towards each other, yelling. Goku and Vegeta's punches collided before they started exchanging punches and kicks at a fever pitch, rising into the air as they did. Sonic and Shadow were launching at each other with Homing Attacks and Spin Dashes. When that didn't work, they kicked at each other before running side-by-side while exchanging strikes. Aleena was exchanging swift karate strikes with Alicia, who was getting blocked everytime Aleena struck. Vegeta then decided to try something.
He put his hands together and shouted, "Final Flash!" shooting a large yellow energy blast at Goku, who shouted, "Ka...Me...Ha...Me...HAAAAAAAAAAAAAAAA!" as he fired a giant blue energy blast that collided with Vegeta's, giving off huge energy pulses and shockwaves as the two Saiyans struggled to gain the advantage over the other. Aleena had Alicia on the ropes with a secret move she had learned in her years of training. She flipped in the air with her feet out before spinning fast, giving her multiple kicks to the face before slowly descending with her fists extended, giving her multiple punches to the face. By the time she landed and stopped spinning, Alicia's face was badly cut up and bruised. She screamed as she pulled out a small mirror and looked in it.
"My beautiful face is ruined!" she screamed before she glared at Aleena, who was smirking.
"I don't see why you're so upset, Alicia. No one ever thought it was anyway." she said as Manic, Sonia and Sam shouted, "SAVAGE!" Shadow was also on the ropes as Sonic kicked him into a tree before Homing Attacking him with a kick to the face, causing him to fall to the ground with a bloody face. Meanwhile, Goku had overpowered Vegeta and hit the Prince of All Saiyans with the Kamehameha before beating him up and sending him flying into the side of a cliff. The three rivals picked themselves up and wiped their injuries.
"Let's kick it up a notch!" Vegeta shouted before a yellow aura surrounded him and his hair turned the same color.
"Now you're talking!" Goku said before the same thing happened to him. Sonic and Aleena nodded at each other before they summoned the Chaos Emeralds and became Super, as did Shadow and, surprisingly, Alicia, whose fur turned a golden brown. The two teams then fired multiple energy blasts at each other, all of them colliding. Sonic then rushed Alicia and punched her hard in the gut, to which she responded with an uppercut to Sonic's chin. Aleena struck Shadow with several roundhouse kicks and a headbutt, to which he returned with a large Chaos Spear, which she was almost unable to deflect. Vegeta held up his hand and summoned a giant blue round energy blast.
"BIG BANG ATTACK!" he shouted as he fired it. Goku held his hands up and the blast struggled to resist his energy, but it was ultimately unable to as Goku pushed it back at Vegeta, who defended himself before rushing out of the smoke and punching Goku in the face before Ki blasting him into the side of a cliff.
"All right, playtime is over!" Goku yelled before his aura turned blue, as did his hair. Vegeta smirked as the same happened to him. The four Mobians then turned Hyper and started clashing at such high speeds it was like they were invisible. Goku and Vegeta's clashes started sending out shockwaves and bursts of energy that people were scrambling to avoid. The battle raged on for a right good while, with Sonic and Aleena gaining the advantage against Shadow and Alicia. As the two hedgehogs blasted them away, Shadow got mad.
"Enough of this!" Shadow yelled before he, Vegeta and Alicia floated up and gathered purple energy blasts in their hands and shouted, "GALICK GUN!" before firing purple beams that approached fast.
"KAMEHAMEHA!" Sonic, Aleena and Goku shouted as they counteracted it with said blast, but it proved to be ineffective as they were blasted into the ground and into a giant crater.
"NICE WORK, GUYS! YOU BEAT ALL THREE!" Eggman shouted victoriously. Suddenly, there was a massive explosion of white light from the crater. Everyone looked in awe as the three heroes rose up in silhouette. When the light died down, everyone gasped at seeing Sonic, Aleena and Goku with silver pupils and silver colored fur/hair with a powerful aura surging around them.
"Tch, this again." said Vegeta. Shadow and Alicia grew furious at seeing their rivals back up and fired multiple energy blasts at them, but were shocked to see them simply walk away and avoid each one. They then suddenly appeared in front of them and punched them in the guts powerfully, except for Goku who was clashing with Vegeta.
Ka ka ka ka kachi daze
Gun gun gun gun o muki
Jan jan byan byan kyukyoku no batoru
Imi wa nai sa
Tatakau dake
Sonic then rushed towards Shadow and punched him at sonic speed several times before knocking him away and blasting him with what seemed like a giant ball of air, causing him to fly back and lose his Super form. Sonic then shot a massive energy blast at Shadow and caused him to fly into the side of a cliff where he then punched him multiple times in the gut, making a large dent in the cliff before finally punching him in the face, sending him flying back to GUN.
Deae te Ureshī ze Sugē Yatsu ni
Oshiete Kureru Ka Ī ore no tsuyosa o
Pawā Zenkai Genkai Toppa
Kono Kari saki wa Kami mo
Karappokasa
Aleena had Alicia on the ropes as she automatically dodged each and every attack the squirrel threw at her before giving her very strong punches to her head and face and then giving her a Double Ax Handle that caused her to soar down and fall into the ground, unconscious.
Ka ka ka ka kachi daze
Gun gun gun gun o muki
Jan jan byan byan kyukyoku no batoru
Imi wa nai sa
Tatakau dake
Ma ma ma ma Maji-Kayo
Ten ten ten ten ten mo Chi mo
Jan Jan Byan Byan hibashira ni tokeru
Ima wa nai sa tatakau dake sa
Yagate jiga ga mu ni Naru made
Goku then punched Vegeta in the side of the face before shouting, "KAMEHAMEHA!" blasting him full force and knocking him out as well.
"Think you've won?! CowBot, Motobugs, attack!" Eggman yelled. They all appeared on scene before Cowbot shot giant missiles at Sonic only for him to auto-dodge them and strike it so fast, it didn't even have time to explode before falling to scrap. The Motobugs charged at Aleena, only to get blasted by a shockwave she fired from her hand, destroying them all.
Eggman screamed in fear and devastation before quickly flying away.
"WAIT!" Orbot and Cubot screamed as they quickly ran after him.
Sonic and Aleena looked at themselves before asking Goku, "What kind of power is this?"
Goku smirked as he answered, "It's called Ultra Instinct. You automatically adapt to your surroundings and automatically attack and dodge opponents." After some time, Goku and Vegeta left and Alicia was arrested. Sonic and Aleena smiled at each other before they high-fived.