Mecha Knuckles, IDW Sonic Hub

For the similar Knuckles Robot, see Metal Knuckles. Mecha Knuckles was a robot doppleganger of Knuckles the Echidna. It was created by Dr. Ivo "Eggman" Robotnik. As a Scrapnik, besides the main body of Mecha Knuckles: he has replacement parts of a Skorp, a spikeball and a Grounder. He has a Shovel Claw for one hand. Fires missiles from his mouth, like his original badnik form. arms can extend far, though not as far as Tangle's tail.

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Mecha Knuckles, IDW Sonic Hub