Knuckles was heavily dedicated to keeping the Emerald safe, and would defend it with his life against all who trespass on it. He first appeared on the show when he captured Sleet and Dingo, intending to feed them to Chomps, his pet. However, he was tricked into believing that Sonic, Manic and Sonia were going to steal the Chaos Emerald. Initially, this was their intention, but Sonic changed his mind, and brought terms of peace with Knuckles. Knuckles soon developed a crush on Sonia.
Knuckles has a tough personality, dedicated to keeping his island afloat. However, he tends to be gullible and easily misled, thus leading to his attacks on the Sonic Underground.
Powers and abilities
Knuckles possesses super strength and can spin his arms very quickly to perform buzzsaw maneuvers. Also, combined with his strength, he can also burrow through walls of solid metal.