Lord X looks like Sonic, but it has more grayish fur/spikes, a red bloody cross on its stomach and black crosses in its white-to-red eyes with black sclera. Also, its dark-grey feet (not actually shoes), dark-golden teeth (12 on top, 11 on bottom, 23 in total), whiskers and different shape of face (wider face, big chin etc.) differ it from both Sonic.exe and normal Sonic. His decaying form is similar to his standard form in the terms of shaping, but it has a different palette. It has green-ish.