Sonic advance 3 saves automatically after an act or boss. It also saves chaos and chaos emeralds as you collect them.
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.
Shadow don't exist in sonic advance's series
it is a hack
no
1:Sonic the Hedgehog 2 2:Sonic Adventure DX 3:Sonic Advance 2 4:Sonic 3 & Knuckles 5:Sonic the Hedgehog 5: Sonic the Hedgehog 4: Sonic Advance 3 3: Sonic Adventure 2: Sonic & knuckles 1: Sonic CD 5: Sonic the Hedgehog 3 4: Sonic the Hedgehog 3: Sonic the Hedgehog (2006) 2: Sonic and the Secret Rings 1: (what? not sonic cd?) Sonic Adventure