PS3 games have region codes. The "best" ISO for TTT2 is generally the (European) or BLUS31007 (North American) version. Why?
If you don’t own the game or DLC, your legal options are buying a used PS3 disc and the DLC via PSN (where still available) or purchasing Tekken Tag Tournament 2 on Xbox One/Series X (backward compatible with some DLC included) or Wii U edition. tekken tag tournament 2 dlc ps3 iso best