Moebius

Moebius, originally named Anti-Mobius, is the Anti-Verse equivalent to planet Mobius. It is the home of the Anti-Freedom Fighters, including Scourge the Hedgehog (also known as Evil Sonic).

Typically, people from the Anti-Verse have opposite personality traits of their Mobius Prime counterparts. For example, Anti-Knuckles is a pacifist as opposed to the fighter that Knuckles Prime is, while Dr. Robotnik's mirror self is the kindly Doctor Ivo Kintobor.