MAP57: The Marshes (PlayStation Doom)

MAP57: The Marshes is a secret map that appears in the PlayStation and Saturn versions of Doom, which can be accessed from MAP29: Twilight Descends.

It was designed by Randy Estrella.

Walkthrough

 * 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
1. In the area with the rocket laincher and the 10 rocket boxes there are 4 openings one which has a small brdge leading to a small area containing a megasphere. 2. in the megasphere area there a skull on the wall flip it and just walk through it you will be teleported to a small cave containing a BFG 9000.