User blog comment:Anyshydra/How Old is Sonic The Hedgehog/@comment-3331627-20131020211016

This is from the Sonic page

He is a 15-year-old, blue, anthropomorphic hedgehog, and is a laid-back and cool-headed character, meant to symbolize peace. Like his name and species would imply, Sonic can move at the speed of sound (and can exceed this), with lightning fast reflexes to match it, and can as well curl up into a ball, primarily to attack enemies.