Done last year, my last drawing of this character I've done in a while.

Basically, 'Entrail' is a metal sonic knock off clone demon thingy-ma-bob, but also has his softer, more human side. Shown with a human-like face under the Metal Sonic one, which he can remove like a helmet but rarely chooses to.

This I did because.. the idea was cool and I thought it would come out well. it did. 'nuff said