In the XMB home menu, go to
(Game) > [Game Data Utility].
Important: Make sure you select [Game Data Utility]. Do NOT select [Saved Data Utility], as this will delete all of your saved games files.
Highlight the game data utility file (i.e., name of a particular game you have been playing) you wish to delete.
Press the
button and select [Delete].
Highlight "Yes" and press the
button to confirm the deletion.
A message indicating the file is being deleted will appear.
A "Delete completed." message will appear once the file has been successfully deleted.
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If you wish to play this particular game again, you will be prompted to reinstall this game data utility file (which may take several minutes).
Removing a game data utility file will NOT affect your online stats (if you have any).