Reach the exhibition room, where a lot of curious things are preserved. Read their descriptions if interested.
Operate the control panel and eliminate the monster inside the room.
After destroying the monster, revolve the valve to open the door.
The master control room of the 7th lab requires password. Take the elevator downwards first.
Arrive at another projection room. Take the film on the table and project it. The number “157” can be seen. Together with previous number “491”, the password of the master control room of the 7th Lab is 491157. (The first projection room is near. Return there to check the former number set.)
Take the elevator upwards and enter the password to gain access to the master control room, where additional Black Drugs are available. Also, the notification of the final boss fight emerges.
Go downstairs and place half of the Ramesses Cube on the blue platform.
Proceed forward. The blue platform here is out of power. Go inside and obtain the liquid-nitrogen fire extinguisher in the innermost room.
Return to the corridor and move upwards. Enter the room and put out the fire. Obtain the component box.
Then, go to the blue platform to reconnect the wires.
Pay attention to the hints on the right. Make the Greek letter in each left circle in one-to-one correspondence with the hints. When power is on, place another half on the blue platform, and the way leading to the final boss is open.
Return upstairs and enter the light sphere.
