Who is Knuckles

Knuckles is a video game character from the Sonic series, in which he made his first appearance in the game Sonic 3.Also in knuckles comics. He is a red echidna and sworn protector of the Master Emerald. He has powerful attacks and overwhelming strenght. The spikes on his fists really sting!He is not like other echida because his fists are real but other echida has metal knuckle.