The Coma 2: Vicious Sisters

The secret bunker is on the lower level of the hospital. In order to open it, you will need to turn on 10 devices throughout the game. This is not MISSABLE. You can travel throughout the map at any point to unlock the 10 devices + go into the bunker.

The devices you are looking for look like a wi-fi box. Interacting with them turns them green. I would suggest saving anytime you interact with these just so you dont have to backtrack to all of their locations again.

You will need the crowbar in order to open 3 doors in the police station. The crowbar is found in the subway in the janitor's closet. The 3F location of the school will require a password found in the police station. You will also need to backtrack to the Police Station for 2 boxes later in the game.

*Backtrack to these locatins

School:
-Classroom 3-1
*- Women's bathroom 3F; password found in police station
Police Station:
*-Deputy Director's Office 3F Songreung Police Office crowbar
*-Interrogation Room 2F crowbar
Market:
-Vegetable Shop
-Grandmother's Rice Cakes storage room
Subway Station:
-Woman's bathroom B2F
Hospital:
-Men bathroom 3F (B area near Director's Office)
-Operation Room 3F (A area/ward- go in back room)
Gymnasium:
-Generator Room

After unlocking all ten, return to the hospital B1F. Enter the door and read all 6 memos scattered in the room. The achievement will pop when you LEAVE the room.