MAP30: The Dark Side of Mars (Hell in Hell)

MAP30: The Dark Side of Mars is the thirtieth and final map of Hell in Hell. It was designed by Nathaniel Carll.

Secrets

 * 1) Head north from the start, but do not drop down. Hug the east wall to a door to enter a room with multiple switches. To get this secret, press the second and fourth switches on the west wall, the left switch on the southernmost wall, the northeasternmost switch, then, facing the east side, the southwest and northeast switches. Afterwards, return to the starting point, then to the east should be an open room beyond six open doors. If none are open, you need to head back to that room and press the right switches. Inside the room are energy cells, a plasma gun, backpacks, ammo clips, rockets, a rocket launcher, a berserk pack, a megaarmor, a computer area map, partial invisibility, and a soul sphere. Make sure not to fall into the slime before getting this secret, as there is no way back up. (sector 108)
 * 2) Enter the slime and head east, then up the steps. Head into the small tunnel where the Hell knight is and use the south wall to find medikits, shotgun shells, and a super shotgun. (sector 144)

Current records
The records for the map at the Doomed Speed Demos Archive are:

Player spawns
This level contains four spawn points:
 * 1) facing north. (thing 31)
 * 2) facing south-east. (thing 32)
 * 3) facing south-east. (thing 33)
 * 4) facing south-east. (thing 34)

Things
This level contains the following numbers of things per skill level: