Keep earning emblems (80 I think...). Also, she is only available for two player mode, not the single player.
Chat with our AI personalities
Amy is already unlocked, just choose to play as her
In Sonic Adventure 2 Battle(she is very hard 2 unlock get all rank A's with sonic!)Sonic Adventure DX,Sonic Advance 1 2 and 3(in 1 of them you have 2 unlock her).Sonic Riders.
Amy:Complete Adventure as Sonic.Cream:Complete Adventure as Tails.Rouge:Complete Adventure as Knuckles.Shadow:Complete Adventure as Rouge.Silver:Complete 10 minute man melee fight.Blaze:Complete Adventure as Silver.Super Sonic:Complete the 50 man fight.Super Shadow:Complete Adventure as Super Sonic
Amy was 9 in Sonic CD, since Sonic Adventure however, she became 12.
amy is already unlocked in sonic advance. in sonic advance 2 beat the game with every character with all 7 chaos emeralds to unlock her. in sonic advance 3 beat toy kingdom with sonic as leader ro unlock her.