MAP15: Gates to Hell (Hell Revealed)

MAP15: Gates to Hell, designed by Yonatan Donner, is the fifteenth map of Hell Revealed. It uses "How'd I do?," the intermission screen music from Rise of the Triad.

Description
According to the Hell Revealed info pack:


 * The central area has 8 teleporters, each of them leading to a different place. All of those 8 destinations are connected and when you've been to two adjacent ones you can pass between them freely. You have to lower nearly all teleporters and find all keys to get to the exit. To get to the secret exit you will have to find 3 separate secrets and lower a special teleporter. In the start, try a shot in the dark...


 * Size: medium
 * Difficulty: medium

The central part of the map, with the portals, looks like Heretic’s E2M8: The Portals of Chaos.

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