19978 - safe, artist:bongwater777, knuckles the echidna (sonic), shadow the hedgehog (sonic), echidna, hedgehog, mammal, monotreme, anthro, sega, sonic the hedgehog (series), 2020, black fur, black tail, blushing, chaos emerald, cheek fluff

256226 - safe, artist:joeadok, knuckles the echidna (sonic), echidna, mammal, monotreme, anthro, archie sonic the hedgehog, sega, sonic the hedgehog ( series), 2019, boots, brother, brothers, character name, clothes, crossed arms, gloves, knee

Sonic Classic Heroes, Page 98

144654 - safe, artist:nuinu_17, knuckles the echidna (sonic), echidna, mammal, monotreme, anthro, sega, sonic the hedgehog (series), 2022, food, fruit, grapes, male, solo, solo male - Furbooru

232752 - safe, artist:waterdesukedo, knuckles the echidna (sonic), sonic the hedgehog (sonic), echidna, hedgehog, mammal, monotreme, anthro, sega, sonic the hedgehog (series), blue body, clothes, crossed arms, duo, duo male, gloves, looking

190023 - safe, artist:mmachu_sonic, knuckles the echidna (sonic), echidna, mammal, monotreme, anthro, sega, sonic the hedgehog (series), male, solo, solo male - Furbooru

788 - Related Images

183998 - safe, artist:_karl0_, knuckles the echidna (sonic), echidna, mammal, monotreme, sega, sonic the hedgehog (series), hyper knuckles - Furbooru

788 - Related Images

100227 - Related Images - Furbooru

33899 - safe, artist:nextgrandcross, locke the echidna (sonic), echidna, mammal, monotreme, anthro, archie sonic the hedgehog, sega, sonic the hedgehog (series), 2010, blue eyes, boots, clothes, crossed arms, digital art, facial hair