Sonic Tokens

Sonic Tokens are round, golden tokens with Sonic's face imprinted on it. These collectible items are used to either proceed in the game or to unlock certain characters. In Sonic R, Sonic Tokens are needed to unlock Metal Sonic, Tails Doll, Metal Knuckles, and EggRobo. In Sonic Adventure, the Sonic Tokens are used in Sonic's story in Casinopolis to finish the Stage. After he collects 400 rings and deposits it with a switch, the collected rings will be converted into tokens and fill up the vault.