WASD or arrow keys to move, SPACE to crouch. Continue the story from floor 3, and find the exit out of the fourth floor: The Morgue. New entities: Surge: Acts as Rush and Ambush Office: Appears in door 50, will dash through the office room trying to hit the player, the shaking and power out will show it's path. Deals half damage to the player. Electricity: Appears randomly in a curtain rooms, don't touch the electricy when it is activated
