MAP32: Mostly Harmful (Hell Revealed)

MAP32: Mostly Harmful, designed by Yonatan Donner, is the second secret level of Hell Revealed. It uses the music track "CCCool" from Rise of the Triad. The level's name is most likely a reference to Douglas Adams' book "Mostly Harmless".

Description
According to the Hell Revealed info pack:


 * You have gone through a lot to get here - found many secrets and shown you deserve to get to the super-secret level. And this level is the deadliest of them all - not to mention it's extremely difficult to get rid of all the monsters here, new ones are created all the time! So you are racing against time. You will need all 3 keys to enter the exit - and only the dead are allowed to leave! The level also has some nice effects, like bridges you can go both above and under, arches that curve both below and above, and anti-coward tricks. See how fast you can finish this one on Ultra-Violence, if you can!


 * Size: small
 * Difficulty: you're dead

Walkthrough
The level consists of a building and four nearly identical yards. The yard located in the south is where you spawn. After entering the building, go right to the yard in the east and take the yellow key. Then go to the northern yard and grab the blue key. After this move to the yard in the west and get the red key. Now go to the middle of the map, and stand on the green spawn shooter platform and let your health be depleted. After your health reaches a low enough value, the level will be exited. On skill levels 1 & 2 you do not need to do this. Instead you have to kill the Romero's head to exit the level.

Speedrunning
See:
 * Hell Revealed at Compet-N
 * Hell Revealed at the Doom Speed Demos Archive

Trivia
The level features fake 3D bridges which can be crossed and walked under, though not at the same time.