Metal Knuckles is the First of Robotic counterpart of Knuckles, he also appears in Sonic Advance as Mecha Knuckles and Sonic Heroes, as a Palette swap of Knuckles used in Multiplayer.
Metal knuckles r

Metal Knuckles

Super Sonic RacingEdit

Metal Knuckles was built by Robotnik to help him gather the Chaos emeralds but was defeated by Sonic, Tails, Amy and his Template, Knuckles

Fake Guardian of Angel IslandEdit

See: Mecha Knuckles

Alternate VersionsEdit