Compilation of early character sketches. Taken from the live-stream of the Sonic 25th Anniversary event held on June 2016 in Joypolis.
Concept of Sonic's expressions.
Group concept of Sonic, Tails, Knuckles, and Amy.
Group concept artwork of Sonic, Amy, Tails, Sticks and Knuckles.
Production artwork that stipulates the four main speeds of Sonic.