Complete the game on "Standard" or higher.
Destroy a Charlie Doll.
Defeat two enemies with a single shot.
Expand your inventory.
Improve a weapon.
Craft an item.
Unlock all safes, lockers, strongboxes, and pickable locks.
Complete the game on "Hardcore" or higher.
Complete the game with an S rank.
Complete the game without opening the item box.
Complete the game using 1 or fewer recovery items.
Complete the game in under 2 hours of play time.
Read all story files.
Gather all the fuses in the warehouse within 5 minutes.
Place all jewels in the clock tower monument.
Collect all weapons in the campaign.