In Nightmare achievements

Unlock all other trophies.

Pass Chapter 3 without being discovered more than 5 times by the guardian of the Cruel Nightmare.

Consume no more than 2 Dream Essence while navigating through the dark labyrinth.

Find three hidden walls.

Hide in a closet while a monster is less than 2 meters away.

Purify Dark Nightmare.

Complete Chapter 5 without being detected once (excluding forced encounters).

Navigate through the candy house hazards in under 15 seconds.

Avoid all attacks from Giant Nightmare at the start of Chapter 2.

Find the secret item using the blue candle hint in Chapter 2.

Open all the doors in the puzzle cube room in Chapter 3.

Avoid being transported to the alternate dimension while escaping Chapter 4.