57e47233_and_Secrets_for_3DS___GameFAQs__How_to_Unlock
[Unlockable] Threepeat [How to Unlock] 
You think being this good is easy? Let's see you win 3 matches in a row against another player!
Super Street Fighter IV: 3D Edition Cheats, Codes, and Secrets for 3DS - GameFAQs