The Corruption Universe(T.A.I.L.S)

the Corruption Universe is where the characters of the Sonic universe got corrupted by T.A.I.L.S., or the God of Darkness, stronger than Zalgo and God together. It's easy to tell who is corrupted when the Corrupted in their true form, but most times the Corrupted are in disguises. The Corruption is a sentient being, being able to pounce. When sepperated, the Corruption becomes alive and living infectors. The corrupted are much more powerful than the originals and usually have the Corruption seeking out of them. While even corrupted, The Corrupted still feel emotions, empathy, and more. The Corrupted still have personalities similar to before they were corrupted.
The corruption got into this universe when Sonic the Hedgehog took away the Chaos emeralds to stop Eggman from using them to create Chaos Control. Unfortunatley, Sonic was too late. The Doctor had already started the machine, but it was taking time to load. The ad doctor did't notice the hedgehog, until he felt a wind, but when Eggman looked behind him, he saw nothing. Then the teleported fizzed and smoke erupted from it. Sonic bragged about how easy that was, until a portal opened to a destroyed dimension, where a black tsunami of liquid came out and swallowed sonic. When Sonic arose, he was no longer Sonic. His shoes had changed and the black liquid was on his quills, gloves, and ear. sonic laughed and then killed Eggman.
SONIC
Sonic was the first one to get corrupted, since technically this is all his fault. Sonic corrupted has T.A.I.L.S on his quills, his ears, and climbing up his legs. His once-peach-skinned arm is blue. He can change his body to his will without any effects. He still has feelings and love of chilidogs. He was quite upset when Tails called him a monster