Open the Precursor Door

Complete the game with an S rank on "Inferno."

Complete the game on "Nightmare" or higher.

Complete the game without opening the item box.

Complete the game using 1 or fewer recovery items.

Gather all the fuses in the warehouse within 5 minutes.

Read all story files.

Defeat Stage 2 Nemesis.

Follow Nicholai deeper underground.

Unlock all safes, lockers, strongboxes, and pickable locks.

Leave the clock tower plaza.

Defeat zombie Brad.

Defeat Nemesis on the rooftop.