Sonic, Tails, Knuckles, and Shadow are the stars ... As a Sonic fan who saw those nightmare first renderings of Sonic with teeth, I entered even more nervous — once again proven wrong.

Some Sonic characters, like Mephiles and Tails Doll, have eerie designs that can be terrifying to encounter. Dark Gaia, Metal Sonic, and Black Doom have ominous appearances and powers that make ...