In Bay 2 there are four colored switches: two on each wall. To open the gate you need to pull the switches in their proper order. To learn the proper order walk to the middle of the room. Look up for a hole in the ceiling. Grapple up this hole (remember it for later). While up the hole look at the four batter packs. They are numbered for each color. The order is:
- Red.
- Blue.
- Green.
- Yellow.
This is the order to pull the levers. Pull the levers now then head down the hallway. Mommy Long Legs will appear. Run back to Bay 2 and go up into the hole in the ceiling. Wait there until she passes. When she leaves go back to the hallway she chased you out of and continue forward until you reach the next room that has a large furnace in it.