2 Gameplay 3 Tiny Chao Garden 4 Reception and follow-up 5 SonicN 6 Trivia 7 References 8 External links Characters The game has four characters, Sonic the Hedgehog , Miles "Tails" Prower , Knuckles the Echidna , and, for the first time as a playable character in a classic-style 2-D Sonic game, Amy