Completion bonuses: Successfully complete the game and save the game. When
the game returns to the title screen, an option for "Extra
Menu" will now appear. Select that option to access a photo
gallery, cards, songs, and other bonuses.
Shurelia's Cosmosphere: Recruit Shurelia during Phase 3 and make sure Misha
and Aurica's Cosmospheres have been completed through Level 7.
Next, rest at an inn and talk to Shurelia. Go to a dive shop and
you can now choose to dive into Shurelia.