O'Nux

Anti Knuckles is a Mobian Echidna and Knuckles's alternate self from the dimension of Anti-Mobius. He acts like a Guardian as he has to guard the Sunken Island. But most unlike Knuckles, he is a pacifist who only uses violence as a last resort. During Scourge's takeover of "Moebius", Anti Knuckles encountered him and it is unknown if he survived.

Coming to Mobius Prime
Having lived on and defended the Sunken Island for his entire life, Anti Knuckles' only known moment of tension came at the same time he met his Mobius Prime counterpart. Tricked by Evil Sonic into helping him steal the Chaos Emeralds from Mobius Prime's Floating Island in order to save his own home, Anti Knuckles was actually persuaded to do battle with Knuckles on Mobius Prime and then on Anti-Mobius. So great was his belief that violence was wrong that Anti Knuckles wasn't even willing to harm another to save his home and all its inhabitants. (StH: #44)

Despite this, he joined the Knothole Freedom Fighters as they investigated the deterioration of the Sunken Island's giant air bubble, and discovered that it was the work of none other than Robotnik Prime, who was looking once again to obtain power through Chaos Emeralds, this time from Anti-Mobius. With Evil Sonic defeated and Robotnik nearing success in his plan, Anti Knuckles joined forces with his counterpart, using the Anarchy Beryl of the Sunken Island to reflect energy blasts Robotnik shot at them, destroying his weapons and sending him back to Mobius Prime. Anti Knuckles quickly placed the shattered pieces of the Anarchy Beryl into the proper slowts, restoring the Sunken Island's shield and saving it. He then returned the Knothole Freedom Fighters to land, though kept Anti Sonic tied up until after they returned to their home zone. (StH: #44)

Scourge's Takeover of Moebius
During Scourge's takeover of Anti Mobius, Anti Knuckles was amongst the many to fall to Scourge following a battle between the two. (StH: #193)


 * It is unknown whether Anti Knuckles was killed by Scourge or not.

Personality
Unlike the Anti-Freedom Fighters, who are versions of the heroes of Mobius Prime with no moral sense, Anti-Knuckles is different from Knuckles in an entirely different way: he is a pacifist. He does not believe that violence is something that should be resorted to in any situation, and the only time he has strayed from this standard was after being tricked by Evil Sonic.

Background information

 * Anti-Knuckles holds the seventh-longest Non-appearance Gap in the comic series (despite his latest appearance being in a flashback) at 149 issues (StH: #44-#193)