This is the finale of a series of three trophies. The previous two are:
This trophy is going to be a bit trickier to get, as there are two things that will end up causing some trouble. For that reason, I will go into depth with each Cosmosphere the order of events you want to go through (credit to Krystal109 of GameFaqs for the hard work put into their extensive walkthrough). Whenever it says Optional, it would probably help to just go ahead and do it anyway, for the sake of the 100% CS completion.
**: Do not access this Cosmosphere unless you want Saki's endings. If you access it, even accidentally, you will lock yourself out of getting Cocona's ending or possibly Tyria's endings.
Level 1:
Level 2:
Level 3:
*** Spoiler - click to reveal ***Organito Hut (Optional)
Border Bridge (Optional)
Candy Village
Border Bridge
Adult Castle - You will be forced out of the Cosmosphere
Adult Castle
Candy Village
Border Bridge - Choose "Help."
Organito Hut - Choose "I want to stop this sexy show."
Candy Village
Adult Castle
World Tree Alfage
Stonehenge
Level 4:
*** Spoiler - click to reveal ***Organito Hut (Optional)
Love Nest - Your choice doesn't matter
City of Melodies
Theater
Border Bridge (Optional)
Organito Hut
Love Nest - Choose "Saki."
City of Melodies
Love Nest
Organito Hut (Optional)
World Tree Alfage
Theater
Stonehenge
Level 5:
*** Spoiler - click to reveal ***GPA Moe Hill - Teppo will force you out
GPA Moe Hill
Greater Robot (Optional)
Sane Academy
GPA Moe Hill
Bay Bridge - Choose "No, I don't think so..."
World Tree Alfage
Greater Robot
World Tree Alfage
Stonehenge
Level 6:
Level 7:
*** Spoiler - click to reveal ***Ghost Ship
Closed Book
World Tree Alfage
Ulurua's Egg*
Ulurua's Egg - after Phase 4
Closed Book
Ghost Ship
Closed Book
World Tree Alfage
Stonehenge
*: Complete Level 7 up to this point before Phase 4 to obtain the Ulurua Hyuma. Failure to do this will prevent the Hyuma and, therefore, the 100% completion you're striving for.
**Level 8:
Level 9:
*** Spoiler - click to reveal ***Hope Town
Organito Hut
World Tree Alfage
Castle of Light
Organito Hut
Beauty Fields
Aurora Root
Aurora Root (Optional)
Castle of Light
World Tree Alfage
Castle of Light
Hope Town
World Tree Alfage