FURVERT!

4_toes anthro barefoot big_muscles biped black-rat claws clenched_teeth clothing comic echidna emerald_(gem)eulipotyphlan expansion eyes_closed fangs feet foot_expansion foot_focus footwear fur gem growth hair hedgehog hindpaw jacket jewelry knuckles_the_echidna long_hair male mammal monotreme muscle_growth muscular muscular_anthro muscular_male necklace open_mouth paws plantigrade red_body red_fur red_hair sega sequence shirt shoes solo sonic_the_hedgehog_(series)standing teeth toes topwear torn_clothing transformation