Follow the hallway to the end, where you will see 2 teleporters. You will arrive in a room with a lot of ammo and enemies.
Open the red skull key door at the south end and take the teleporter in that room. Follow the curved hallway until you reach a room with the red key, pressing switches along the way. Red, green (2X), blue, green, blue, green, blue, green (2X), red, blue, red, blue The platforms you must go through have colored torches and you must match the same sequence to safely arrive on the other side: Look at the torches in the hallway from which you arrived into this area and notice their color. The key to the puzzle lies in the torches. Some of these platforms will kill you instantly if you step on them (using a voodoo doll trick).
You will come to a blood pool containing many platforms, three of which are close enough to run onto.
First pick all the ammo up and open the door at the end of the hallway.
