MAP24: The Chasm (Doom II)

MAP24: The Chasm is the twenty-fourth map of Doom II. It was designed by Sandy Petersen and uses the music track "In The Dark".

Secrets

 * 1) From the start, continue right along the ledge until you reach the afr side of the building. At the very end, there is a very thin, circular walkway that eventually leads to a shotgun. Upon picking up the shotgun, a hole in the wall behind you opens up, unleashing some Cacodemons. You can fall into this hole from the platform you're on (which will gradually rise) and get the secret items there.
 * 2) Drop into the slime in the main area and take any of the teleporters down there. You will be taken to the top of a tall red pillar, with several more beneath you. Run along down the pillars until you reach a platform with a teleporter on it. Go through to be taken to an otherwise unreachable area. Follow the hall to the right around a bend and flip the switch there. Return the way you came and take the first right at the end of the hall. Follow the path to another switch and press that one. Follow the remaining hall to a third switch. Press it to open a teleporter taking you back to the main area. Drop back down into the slime and take the teleporter back up to the first red pillar. This time, run across the next three and back onto the ledge you started the level on. The switches you pushed in the hidden area have caused a set of stairs to raise, allowing you to enter the previously unaccessable central building.
 * 3) Inside the central building (secret #2), there is a raised computer on the right wall near the entrance. Press the use key against it to lower an elevator behind you that will take you to a secret ammo stash.
 * 4) After passing through the blue door, you'll be faced with a series of extremely thin walkways across a slime pit. From the blue door, go straight, take a right at the intersection, and after turning left continue straight until you reach the area where the walkway forms a square. Inside this square is a raised platform with an invulnerability sphere. Drop onto this platform. To escape safely, stand at one of the edges of the platform and press the use key. This causes the platform to raise a little. You can do this as many times as you need to get out. If you fall into the area between the platform and the thin walkway, you can press the use key against the outer walls to raise that floor as well.

Records
The Compet-N records for the map are: