Become friends with Tails.
Become friends with Knuckles.
Get all Emblems in the Adventure Field.
Get 130 Emblems.
Get all 130 Emblems by playing Sonic Adventure DX.
Get Level A on all the Action Stages by using Metal Sonic.
Clear all 60 missions.
Become friends with Amy.
Become friends with E-102.
Become friends with Big.
Clear the Sonic story.
Clear all characters stories.
Get Level A on all the Action Stages.
Get all Emblems of the Sub Games.
Get all Emblems of the Chao Race.
