Sonic The Hedgehog

Unlock Shadow The Hedgehog:
Complete Crisis City as Sonic to play as Shadow The Hedgehog.

Unlock Silver The Hedgehog:
Win the Silver The Hedgehog Boss battle as Sonic to play as Silver
The Hedgehog.

Unlock Extras option in the main menu:
Finish Sonic, Shadow, or Silver's Story mode 100% to unlock the "Extras"
option. This new option contain two sub menu, the "Audio Room" and
"Theater Room" options.

Last Episode:
Finish Sonic's Episode, Silver's Episode, and Shadow's Episode.

Unlock free mode:
Complete Sonic's, Shadow's, and Silver's levels, Bosses, and town
missions and reach "S" rank on all them.


Unlockable characters in Free mode:

Unlock Rouge the Bat in Free mode:
Finish all GUN Commander missions.

Unlock Miles "Tails" Prower in Free mode:
Finish all Town Stage missions.

Unlock Knuckles the Echidna in Free mode:
Finish all Town Stage missions with an "S" rank.

Unlock E-123 Omega in Free mode:
Finish all GUN Commander missions with an "S" rank.

Unlock Blaze the Cat in Free mode:
Finish all Soleana mystery missions.

Unlock Amy Rose in Free mode:
Finish all Soleana mystery missions with an "S" rank.


Unlock Audio Room musics:

Unlock Sonic's Theme in the Audio Room(His World):
Finish Sonic's Episode and reach 100% rank

Unlock Silver's Theme in the Audio Room (Dreams of An Absolution):
Finish Silver's Episode and reach 100% rank

Unlock Shadow's Theme in the Audio Room (All Hail Shadow):
Finish Shadow's Episode and reach 100% rank

Unlock Elise's Theme in the Audio Room:
Finish The Last Episode and reach 100% rank

Crystals - Functions:
Yellow: Ring magnet.
White: Control the direction of your homing attack.
Red: Slow down time.
Purple: Shrink yourself and multi jump.
Light Blue: Make a mega jump wherever desired.
Green: Make a tornado.
Dark Blue: Speed.