To ensure your ISO version has all 50+ characters unlocked without a PSN account, follow this community-standard procedure:
Standard ISO dumps often lack the necessary patches to unlock the "free" DLC characters (such as Unknown or Dr. Bosconovitch), which originally required an active PSN connection to activate. ps3 iso tekken tag tournament 2 fixed
For older CFW (3.41 - 3.55), an Eboot fix is necessary to allow the ISO to boot. To ensure your ISO version has all 50+
Some US-region ISOs have been reported as having corrupted data files (like data050 ). Using a Redump verified or European (BLES01702) version often fixes these stability issues. Step-by-Step Installation & Character Fix ps3 iso tekken tag tournament 2 fixed