Black Key...
	Bonus dungeon...
	Garry...
	Ib's father...
	Ib's mother...
	Mary...
	New game+...
	True Guertena exhibit...

Clear the bonus dungeon.

Get to the end of a new game+, but don't go into the Fabricated World painting; instead, go down the newly-available stairs in the gallery.

Get the "Promise of Reunion" ending.

Get the "Forgotten Portrait" ending.

Get the "Memory's Crannies" ending.

Get the "Together, Forever" ending.

Get an ending where Ib escapes (by entering the Fabricated World painting)

Get an ending where Ib escapes (by entering the Fabricated World painting) after obtaining the Black Key.