‘Sonic’ or simply known as the anomaly is an entity born from the collective interest in creating digital horror based on the sonic the hedgehog franchise that has existed as old as the very idea for an evil version of sonic has existed and it isn't limited to one specific version of an evil version of sonic rather it can exist from multiple versions of the concept of an evil sonic doesn't matter how each reimaging handles itself.

‘Sonic’ resides in a game called “Sonic Terror Trinity” that contains versions of the 3 most popular pieces of sonic horror content now remade by ‘Sonic’ based on how he thinks these stories can be improved and those stories/games being:

SONIC 2011

Sonic 0

El Pendrive Azul

Each game plays with your expectations for what's going to happen next while also giving each story a new coat of paint.