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