Sonic was best with the cartoon look you see in Mania and Mania Adventures. But Knuckles I think was the biggest improvement. Before he was pretty much just red Sonic. Now there's some differentiation in his design that conveys what he does differently than Sonic, and what a meat head persona he's had before
But a design doesn't really matter if it's tied to a failure, the design is a failure
But a design doesn't really matter if it's tied to a failure, the design is a failure