Get all rewards.
Die every way possible.
Complete the ending: Into the Abyss.
Get all collectibles.
Complete the ending: The Extrication.
Complete the last stage with the Dark One.
Remove the shadow one time.
Reach the end of the secret room.
Complete the Seal of 5 Phases.
Escape from the ghost sergeant.
Extinguish all the candles.
Open the sealed gate.
Escape from death.
Return back to 2016.
Open the secret passage in the reception room.
Fulfill Lee Yue-hong's final wish.
Uncover Lee Yue-hong's past.
Obtain the USB.
Get Doc's surprise.
Find the non-existent B3.
Uncover any hidden message.
Find Poody!
Unlock the code in the registrar's office.
Use the remote controller.
Find the black cat.