X

Lord X looks like Sonic, but it has more grayish fur/spikes, a bloody X-shaped scar on its stomach and black X-shaped 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.

Her decaying form is similar to her standard form in the terms of shaping, but it has a different palette. It has green-ish fur/spikes instead, less dark red and more light-yellow skin.

Lord X has matured greatly compared to her younger self. Despite still being extremely megalomaniacal and malicious, she now knows how to manipulate and scare people far better than before. Also, an equally important difference from her younger self is refinement and elegance. For example, she likes to play the piano, speaks in a formal tone and is not as impulsive as before. In her own words, Lord X believes that killing people is an art, and does not like being compared to a savage beast.

Despite her bloodthirsty nature, X is intelligent and self-aware. She can manipulate people easily, creating worlds and levels in her twisted game. Furthermore, she can sometimes be nice to her victims, although this is rare, and her brutal tortures are worse than death, overriding any friendliness.