Super Sonic
You cleared all characters stories.
20 ✓ September 25th, 2010
Miles "Tails" Prower
Tails is your friend now.
10 ✓ September 23rd, 2010
Knuckles the Echidna
Knuckles is your friend now.
10 ✓ September 24th, 2010
Amy Rose
Amy is your friend now.
10 ✓ September 24th, 2010
E-102 "γ"
E-102 is your friend now.
10 ✓ September 24th, 2010
Big the Cat
Big is your friend now.
10 ✓ September 24th, 2010
Sonic the Hedgehog
You cleared the Sonic story.
10 ✓ September 24th, 2010
The Perfect Adventurer
You got 130 Emblems.
40 
Chao's Best Friend
You got all Emblems of the Chao Race.
20 
The Adventurer
You got all Emblems in the Adventure Field.
20 
The Fastest & Strongest
You got Level A on all the Action Stages.
20 
Mission All Accomplished
You cleared all 60 missions.
20 
Sub Game Master
You got all Emblems of the Sub Games.
20 
Metal Sonic
You can use Metal Sonic now.
15 
Metal Sonic Master
You got Level A on all the Action Stages by using Metal Sonic.
15