This chapter is pretty violent, that's why I rated this story T.

Flashback

Sonic stared in horror as Dr. Eggman killed a innocent mobian with his death egg robot. He laughed evilly as Sonic helplessly watched in his nearly inpenetrble cell. "How does it feel to LOSE, rat? Fun?" The doctor spat out at him, sneering. "I wasted my chemical on you, you can't even master the powers they gave to you! Sonic snarled, and glared at him.

"You aren't gonna get away with th-" "That line is SOOO old! You can't even come up with a better line?! Pathetic!" Dr. Eggman rudely interupted. He then killed another helpless mobian. Sonic roared, and then his vision went black, but first he heard, "Next time I shouldn't stress him out or else he'll go berserk... That won't be good..."

Sonic stopped his trance when Tails was desparately shaking him. He looked around, and saw Knuckles strewn on the floor, bloodied. Shadow had multiple cuts, and he was throwing Chaos Spears at the Death Egg mech. Sonic saw this and gasped. Then, he roared and slashed the robot on it's lower left leg.

The huge robot started to tip slightly. Dr. Eggman laughed evilly and said, "It'll take more than slashing to beat me! Have you not learned when you were defeated?! Sonic grimaced, and was about to zone out again when Tails shook him, knowing what was about to happen. "No! Don't zone out again! We have to beat him!" Sonic nodded, and did a homing attack on the chest of the mech. It stumbled, then fired missiles. They hit their target, and Sonic stumbled back. He growled lowly, then leaped onto the glass pod where Dr. Eggman looked worried, and said, "Now now, Sonic... we don't have to get-AHHH!" Sonic was punching the glass.

Visible cracks grew on the pod, and Sonic's gloves turned red. He didn't care, and with his 4th blow, the glass shattered. Sonic picked up the doctor with one hand by his collar. He roared in his face and tossed his out of the mech 20 feet below. Tails, Knuckles, and Shadow stared in shock. Sonic would never put his hands on eggman. Never.

Dr. Eggman landed with a thud. He got up, shocked that Sonic would actually hurt him phiysically. Sonic stayed on top of the death egg mech, his eyes flickering from emerald to red. He then did something that shocked everyone. He jumped into the cockpit of the robot. Sonic did know how to fly a plane before he meet Tails, so he was able to manever the robot, in fact the controls were very similar to a plane! He grabbed the doctor with the robot's hand. He pressed a button and a ray gun came out. Dr. Eggman gasped, and then pleaded for his life. "Please, Sonic! Mercy!" Tails gasped and ran to the mech. He flew up until he was eye level with Sonic.

"Sonic! Please stop! You would NEVER do this! You're going too far!" Sonic stared at him, and sighed, his eyes going from red to emerald. "Fine." He then dropped the doctor. He fell another 20 feet. Tails sighed in relief. Sonic jumped out of the mech too see the doctor run. Knuckles tiredly got up, and walked over to the duo. Shadow walked toward hem, exuasted.

Dr. Eggman laughed evilly and sneered at the camera. He pressed a button and 6 chaos emeralds emerged from a slot. He grabbed them and inserted them in a case. it had molds for the 7 chaos emeralds. He inserted the case into a last resort robot. It was a very rusted robot from a longtime ago. It was Silver Sonic. The doctor laughed insanely and the robot turned slightly golden. Its eyes were red instead of orange, and it flew into the main hallway. "If they can defeat it, my master plan will work! HO HO HO HO HO!

Silver Sonic dashed and slammed into Sonic. He grabbed Siver Sonic's foot and threw him into the other direction. Sonic stared at the robot in shock. Tails quietly said, "Super Silver Sonic." Sonic took out the Chaos Emerald out of his quills. It was grey. "He has 6!" He said in shock. Sliver Sonic slashed Sonic with its claws. Sonic winced as blood seeped from the wound, but dodged its second attack. Knuckles jumped and punched the metal duplicate out of the way. Shadow bombared it with Chaos spears, and Tails whacked it with his Tails. Sonic finished it off with a spin dash. It exploded, and the emeralds flew out of the robot, restored to their normal colors. Dr. Eggman flew in on his Eggmobile. "You should've left." He said grinning evilly, and the emeralds started to float. Then, the doctor said something in Japanese... (I'm sorry if this is wrong, but my chromebook dosen't do accents :( )

Anata no enerugi o kashite kudasai (Lend me your energy)

Kodai emerarudo (Ancient Emeralds)

Mezameru (Awaken the)

Jogoku no kemono (Hellish beast)

Soreha (That will)

Sekai o hakai suru! (Destroy the world!)

Knuckles blinked in confusion, as well as Shadow, but Sonic and Tails could tell what the doctor was saying. Tails knew how to speak various langauges, and Sonic had no idea why. Suddenly, the Emeralds glowed a sinister black. They energy went into Sonic, and he screamed in pain. His fur changed to red, his fangs grew, his wings grew signifigantly, and his claws ripped out.

Both his claws and eyes were blood red. Tails watched in horror as he grew spikes on his arms and legs. He roared as the doctor laughed with glee. "Now you rats can deal with him while I watch you. Have a fun time being maimed!" The doctor flew off. "Why that fat bast-" Knuckles cut Shadow off before he could swear.

Sonic, now transformed, looked at the three mobians before him. Suddenly, he felt like he had to kill them. A aura swirled around Sonic, and he was about attack when he stopped himself. "RUN, NOW!" He screamed to the three. They nodded, and wasted no time running.

Ok, that's all for now! Like always, please review to tell me what you think, and even fav or follow! All is apreciated! Also, there is going to be some INTENSE violence, so if you don't like gore or graphic beating, don't read. (Don't worry, our heroes will be safe, but it's gonna be hard to beat Sonic...)