To install the KINGDOM HEARTS Birth by Sleep PSP® theme:

1. Navigate to your Memory Stick PRO Duo™ using any personal computer, and extract the "PSP" folder contained in this archive to the root directory of the Memory Stick. There should now be a file named "KHBBS_theme_May.ptf" in the /PSP/THEME folder of your Memory Stick.

2. Insert the Memory Stick into your PSP system, and choose "Theme Settings" from the PSP main menu.

3. Select the KINGDOM HEARTS Birth by Sleep theme, marked with a crown icon, from the list and choose "Install theme".