Amy is already unlocked, just choose to play as her
unlock him by shagging the boss
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.
Keep earning emblems (80 I think...). Also, she is only available for two player mode, not the single player.
in sonic adventure dx you can only unlock metal sonic by collecting 130 sonic emblems.
Amy is already unlocked, just choose to play as her
unlock him by shagging the boss
Actually, you can't...... You just.... can't... If you want to play Sonic Adventure 2 Battle, you'll have to buy the game Sonic Adventure 2 Battle (Not trying to sound stupid by the way.)
There are no minigames for the GBA that you can unlock in Sonic Adventure 2 Battle. You can unlock the boss battles and racing minigames, but they are played on the GC like the rest of the game.
Collect emblems
after beating the game 1000times
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.
you cant
u can be him in 2 player in sonic adventure 2 battle
Keep earning emblems (80 I think...). Also, she is only available for two player mode, not the single player.
To unlock the jewel race you have to complete all of the beginner races.
There is no Sonic Adventure 4 Battle, there is Sonic Adventure 2 Battle but that was released 8 years ago.