Setter (セッター Settā) is a character that appears in the Sonic the Hedgehog series. He is an anthropomorphic koala from Blaze's world, and a member of the Coconut Crew youth association from Southern Island. Setter serves as the "Option center" for Sonic Rush Adventure, from where the player can change Player Name, Boss Difficulty, Time Limit and delete game data. He can also assign Sonic various missions at certain points.