19246 - safe, artist:bongwater777, part of a set, knuckles the echidna ( sonic), shadow the hedgehog (sonic), echidna, hedgehog, mammal, monotreme, anthro, sega, sonic boom (series), sonic the hedgehog (series), 2020, cheek fluff

Knuckles The Echidna (@SentryOfChaos) / X

Hedgehogs Can't Swim: Knuckles the Echidna: Issue 24

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Hedgehogs Can't Swim: Knuckles the Echidna: Issue 24

180564 - safe, artist:nextgrandcross, knuckles the echidna (sonic), echidna, mammal, monotreme, anthro, sega, sonic the hedgehog (series), 2012, angry, clothes, fist, fur, gloves, gritted teeth, looking at you, male, purple eyes, red

Knuckles The Echidna (@SentryOfChaos) / X

33864 - safe, artist:awesomeblossompossum, julie-su the echidna (sonic), saffron bee (sonic), tikal the echidna (sonic), arthropod, bee, echidna, insect, mammal, monotreme, anthro, archie sonic the hedgehog, cc by-nc-nd, creative commons, sega, sonic

Knuckles The Echidna (@SentryOfChaos) / X

142563 - safe, artist:alhedghog, knuckles the echidna (sonic), sticks the badger (sonic), sega, sonic boom (series), sonic the hedgehog (series), duo, female, line art, male, masochism, speech bubble, talking - Furbooru

88430 - safe, artist:goblinhordestudios, knuckles the echidna (sonic), badnik, bird, echidna, fictional species, flicky (sonic), mammal, monotreme, robot, anthro, feral, plantigrade anthro, sega, sonic adventure, sonic the hedgehog (series), 2009

176158 - safe, artist:tighesammy, knuckles the echidna (sonic), sonic the hedgehog (sonic), anthro, sega, sonic the hedgehog (series), duo, duo male, male, males only, sonic the hedgehog 3, super sonic - Furbooru

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