Read all of the files.

Expand inventory slots to max.

Open all of the safes and locks in the game.

Open a portable safe.

Use Wooden Boards to board up a window.

Kill 3 enemies at once with a sub-weapon.

Complete Claire's story on "Standard" or "Hardcore" with an S rank.

Witness the true ending.

Complete Sherry's segment.

Destroy a Mr. Raccoon.

Complete Leon's story.

Complete Leon's story on "Hardcore" game mode.