Eggman's mistake: Project G.O.L.D

Year after year after year, he used all his best inventions and nothing, his best creations nothing, even he used powerful beings nothing, Eggman was tired of being humiliated, every time that blue hedgehog appeared and ruined his plans, so He put to work and decided to make one last attempt to defeat Sonic, he created a virus that should have symptoms such as muscle pain, loss of strength and some fever, but he knew that his friends would find the cure sooner or later , just as it happened that time when I created the Metal-virus, so he decided to strengthen it more, but was unsuccessful, since he made sure that there was no cure, but unfortunately for the doctor, if he had, desperate and frustrated he fell into a state of madness where he no longer cared about anything, he just wanted to kill that damn hedgehog at once, so he resorted to dark magic where after a ritual, he managed to summon Lucifer himself, Eggman begged him to help him in his new virus, that was pot Before he makes the patient suffer and especially that there is no cure, Lucifer with a sinister smile I accept, without any kind of treatment, he was plotting something, Eggman thought that this time we would succeed in his plans so he went to the laboratory where the virus was And indeed, it was more potent, only that when he put the virus in a capsule, he could swear that he saw some purple dots that stared at him, Robotnik realized this but thought it would be because he had not slept in days because he was making the virus , so he just ignored it and went to prepare for his last meeting with Sonic.

Sonic found himself on Splash hill, having a vacation after saving the world from Robotnik but his rest would end as fast as his speed, Eggman appeared before him and began a battle that as everyone knows, Sonic was the winner, the very annoyed doctor decided to use his secret weapon so in a missile he put the capsule with the virus, so that it hit Sonic. He was very confident thinking that nothing would happen to him, he let himself be consumed by the missile, which was his terrible mistake, the smoke cleared and Sonic was seen standing as if nothing, although he had a yellow liquid in his body, Eggman seeing this, he mocks his rival, telling him that he was an idiot to let that missile hit him and that now he should be punished for being so trusting, he said that, leaving the place, leaving the blue hedgehog somewhat confused.

Days later, Sonic was not feeling well, he had body aches, fever, and he could swear he had yellow eyes. In addition to extreme fatigue that was rare for him, because he never gets tired, he was going to call Tails to help him but he remembers that his communicator was destroyed in his last battle against Eggman, Sonic already worried decides to go to Tails' house but he could not run, since he was getting tired quickly, Sonic did not seem to improve, as he walked, he began to sweat a lot, his face was a little pale his quills became somewhat dark and half gray, and his eyes a little yellow, this fell to the ground because he could not anymore, his suffering had won him over, he began to close his eyes while he remembered everything in his life as his friends, everything he loved and also remembered his favorite villain ... Eggman. He woke up, but his golden spikes looked different, some pale dark blue, his black eyes with purple pupils, his dark red shoes, he remembered his friends, but in his heart there was no good, only evil, and now only I wanted to do one thing ..... Destroy and infect.

Sonic: a blue hedgehog famous hero loved by all mobius

Tails : a two-tailed fox before being the center of bullyngs but now another beloved and faithful hero and sonic's best friend

Knucles :a last echidna of his class and guardian of the master emerald lives in angel island and is a bit trusting and another member of "Team sonic"

Exgold : ???

Eggman (Robtnick) : mad scientist and evil sonic enemy

Sprites by me and @CloudyCrack555Gamer

Programers: @Alexgd12 @SMF1_Machinimist @CloudyCrack555Gamer @FlashMightyGamer