Fall for 30 seconds.
Finish Chapter III.
Complete The Corridor with 3 inversions.
Complete The Aftermath with 2 inversions.
Complete The Timepiece in less than 1 minute.
Finish Chapter II.
Finish Chapter I.
Complete The Library being no louder than a whisper.
Catch the unchained key in Mirrored Courtyard.
Complete Mirrored Garden with 5 inversions.
Complete The Precipice without rotating.
Complete The Intersection without walking.
Complete all mirrored worlds.
Collect all hidden wisps.
Finish Chapter IV.
Finish Mirrored Chapter I.
Finish Mirrored Chapter II.
Finish Mirrored Chapter III.
Finish Mirrored Chapter IV.
Cross The Bridge.