You have to defeat all story missions in team heros and team Babylon.
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.
As Silver was playable in the previous Sonic Riders game, he may be a playable character in Sonic Free Riders. Nope he is not in this game. There is only sonic, tails, knuckles, Amy, shadow, rouge, cream, Vector, a robot, wave, storm and the green hawk guy.
yes you can unlock Cosmo in sonic riders zero gravity you cant get cosmo in sonic zero gravity riders for Nintendo wii. the characters you can get are sonic, tails, knuckles, jet, wave, storm, silver, blaze, knights, shadow, Amy, eggman, rouge, cream, billy hatcher, amigo, SCR-GP, and SCR-HD.
You can't (But to unlock Shadow + Amy, you type in 5953131313131313)
No. Sonic Rush is only playable with Sonic and Blaze.
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.
no, but you can unlock knuckles, amy, and cream.
You need to beat zone 4 act 3 with Sonic as leader to unlock Amy.
To unlock her(Amy Rose on Ultimate Flash Sonic),You must finish Main game with all characters.
Amy is not playable in any Smash Bros. game.
you have to beat the story of sonic, tails or knuckles.
no you cant but you can unlock amy and shadow just enter in the code 595313131313131 then you will get abillites and characters enjoy