Now, what region is your PSN account? To check, look at your Store’s currency (USD = US, GBP/EUR = Europe, Yen = Japan).
If you bought a used physical disc and found DLC characters on the disc (or saves files for them) but can't play them, the previous owner's license is tied to their account, not yours. tekken tag tournament 2 dlc characters ps3 download fix
If successful, Ogre, Violet, Sebastian, Dr. B, and Kunimitsu will be unlocked immediately in the character select screen (usually in the bottom row). Now, what region is your PSN account