The King of Fighters XIII: Unlock Key

All of KOF XIII’s hidden content can be unlocked.
*This content can also be unlocked by playing the game.
*Please note that “Iori with the Power of Flames”, “NESTS style Kyo”, and “Mr. Karate” will not be unlocked via this DLC.

Download of this product is subject to the PlayStation®Network Terms of Service/User Agreement and any specific additional conditions applying to this product. If you do not wish to accept these terms, do not download this product. See Terms of Service for more important information. One time fee for use of downloads on up to 2 activated compatible Home Console* systems.
* See Terms of Service for further information.

Source:

PlayStation Store Description