Spent SEGA Miles to unlock following characters.

Unlockable	How to unlock
Alex Kidd	80,000 SEGA Miles.
B.D. Joe	80,000 SEGA Miles.
Beat	60,000 SEGA Miles.
Big the Cat	40,000 SEGA Miles.
Chuih	100,000 SEGA Miles.
Jacky Bryant	60,000 SEGA Miles.
Knuckles the Echidna	40,000 SEGA Miles.
Mobo	100,000 SEGA Miles.
Opa-Opa	100,000 SEGA Miles.
Ryo Hazuki	80,000 SEGA Miles.
Ulala	60,000 SEGA Miles.
Zobio	40,000 SEGA Miles.