Knuckles-Zilla

Knuckles-Zilla is an alternate version of Knuckles the Echidna from an alternate version of Mobius. In this universe, Chaos Emerald radiation transformed Knuckles into a hideous, gigantic monster that threatened the people of Mayor Kintobor's city. Despite his fearsome mutatations, he was unable to stop the Giant Robotno piloted by Sonic the Hedgehog. (SSS: #12)