Letters in italics refer to marked spots on the map. Sector numbers in boldface are secrets which count toward the end-of-level tally.
Secrets[]
Right after you step off the lowering floor in the beginning, parts of the east and west walls are differently textured than the rest. Press on any of them, and two alcoves will lower, allowing access to five armor bonuses and two rockets. Both of them count as one secret. (sector 5)
At the northwest of the rectangular hall, there is a section of green wall at the east that is differently textured than the others. Open it to find a long tunnel lined with health and armor bonuses. (sector 9)
In the room where you find the red skull, one of the metal panels at the south side has a gargoyle's face on it instead of a lion's. Press it to open a closet in the west, containing six armor bonuses and four rockets. (sector 216)
While inside the southwest computer room, go up the perpetually moving platform at the far west. There, you will find a set of metal panels; one of them has a lightning bolt symbol on it. Press on it to lower a lift, and drop into the hole to find a room with two chaingunners, as well as two doors that both lead to a rocket and eight bonuses (health bonuses in the north, armor bonuses in the south.) (sector 193)
While inside secret #4, press on the middle of the west wall to find four health bonuses, four armor bonuses, and a radiation suit. (sector 202)
In the room where you find the yellow skull, one of the faces on the metal walls is a gargoyle's instead of a lion's. Press it to open up a tunnel leading to three chaingunners, nine armor bonuses, and a teleporter. (sector 214)
Enter the teleporter in secret #6 to be taken to a platform in the first hallway, on top of a soul sphere. (sector 18)
At the top of the metal hill beyond the yellow skull door, the southern wall has a skull with glowing, red eyes on it. Open it to find six health bonuses. (sector 218)
