The easiest way is to draw using the squares. Draw them using a pencil, don’t press too hard on your pencil. Draw a circle in the center of the two upper squares – it’s Sonic’s head.
Draw another smaller circle.
Draw the spikes on its head. It’s a cartoon character that’s why it has the specific spikes.
Give the right shape to the head. Erase the unnecessary details.
The lower limbs are thin and long.
The shoes are big, of an oval form.
You can see its socks.
The arms are thin, draw them with the help of the semi-circular lines.
Add the hands in the gloves.
Draw a small round nose.
Mark the area for its eyes with the help of the uneven lines.
Add the small details: the eyebrows, the mischievous smile, the lines on the shoes.
Draw the small, oval eyes.
They are like the cat’s ears, pointed at the top. Add the small strokes.