Nicky (ニッキ Nikki) is the main character of the Sonic the Hedgehog serialized manga published by Shogakukan. He is a fourth grade student at Hedgehog Elementary School. Nicky is a sweet and even-tempered hedgehog of Hedgehog Town, and the alter-ego of the heroic Sonic the Hedgehog. Nobody (except Tails) is aware of his alter-ego, which he tends to transform into.