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Knuckles the Echidna is a friend and rival of Sonic the Hedgehog. He is a red anthropomorphic echidna who serves as guardian of the Master Emerald and protector of Angel Island.
Knuckles is a red echidna with brass spike hands.
- Knuckles made his video game debut in the 1994 Genesis game Sonic the Hedgehog 3 as a non-playable character, before finally becoming one later that year with the release of the game’s direct follow-up Sonic & Knuckles.
- Incidentally, Knuckles made his IDW debut in the third issue.