In this tutorial, we learn how to do a Sonic the Hedgehog line drawing. First, draw a circle, then draw the muzzle inside of it. From here, draw the eyes using a round shape and then draw in the brows around the eyes. Next, you will draw in the quills on the back of the head as well as the ears. Next, draw in the nose, which is a skinny little line and then fill it in with black. After this, draw in the mouth and then fill in the eyes. From here, add in color if you would like or you can just shade and you're finished!