MAP31: Entryway (PlayStation Doom)

Level 31: Entryway is the thirty-first level of PlayStation and Saturn versions of Doom and is the first level of Doom II episode. It is based on the original MAP01: Entryway with modifications made to adapt consoles' limitations. The author of the original map is Sandy Petersen.

Music
The map uses the following music tracks:

Essentials
Drop down from the starting ledge to the staircase. Enter the corridor where go to the right and turn to the right again. You will be followed into a room where the exit is located. Open the door in north east and push the skull switch behind it.

Other points of interest
Chainsaw

If you want chainsaw do not jump off the ledge so early. Instead, head left to the windowed room and take it.

Official secrets

 * 1) In the central corridor there is a single door. Behind this door is a room with a structure having four former humans and two switches. Flip the switch that is put closer to the entrance. This will open an alcove at the north east containing two stimpacks and an armor.
 * 2) Go to the south east room where the exit door is found and lower the lift accessbile via switch. Once you will be lifted up, push the wall in front of you to reveal another switch (and some imps if they are here). Flipping it will unlock outside area, which is secret#3.
 * 3) As said above, the outside area is unlocked. Go to the south east of the exit room and turn south. You will notice an opening to the outside. Go there and take shotgun and shells and destroy imps.
 * 4) In the south east of the exit room, a rock wall (to the south of the imp cage) can be open. Behind is a single stimpack.

Non-official secrets

 * Use the switch-accessible lift in the south east room. When you will be lifted, jump onto the square platform (to cross its western side). Now, head into the room full of health bonuses to discover a rocket launcher.

Versions comparison
Cosmetic and geometry differences

The chainsaw room is no longer open to the sky but has a ceiling. In addition, it features transparent windows exclusive to these versions rather than having cage.

The northern room, with the structure in the center, is more detailed in console versions: the green metal walls now feature blue triangles in the same manner as the corridor located before.

Fixed bugs

The original version of this map had a little issue with secret#4: instead of having adjacent floor texture the openable wall had the wrong one. This was fixed in the current release to feature only one flat.