The game has a dedicated modding scene, mostly revolving around unlock keys and character stat editing.
Yes, but with significant caveats. Because PS3 saves are encrypted per user, you cannot just copy a 100% save from GameFAQs or Nexus Mods directly into your PS3. j stars victory vs ps3 save data
On the main menu, go into the BGM Edit menu, make a minor change (like resetting tracks to default with Triangle), and exit. The game will force an auto-save upon leaving. The game has a dedicated modding scene, mostly
You can find community-shared save files on platforms like GameFAQs (J-Stars Victory VS) and GameFAQs (J-Stars Victory VS+) . Notable saves include: On the main menu, go into the BGM
Do you have a specific problem with your J-Stars save file? Check the Reddit communities at r/JStarsVictoryVS or the PS3 Homebrew subreddit for advanced save editing guides.