Raygun

Raygun is a single-level PWAD for Doom that was released in August 1994. It was designed by Brad Bilbo.

Secrets

 * 1) The path to the exit area is opened up by pressing the northernmost of three switches. Pressing the middle one opens up a path to a teleporter which ultimately leads to a room in the east with a switch in the north-east. Press the switch then immediately run back over a rising wall. Two switches are on this wall - press both of them. These open up the door out of this room, and a door immediately after it leading to a blue key. Note that it is not actually necessary to raise the wall in order to get this secret. (secret 128)
 * 2) Head west from #1 to a room with many monsters. Approach the west end of this room - two doors will open, releasing 0-2 cyberdemons. The southern trap contains a teleporter to an area with many items. Going through two teleporters takes you to a room whose west wall is a lift back to the start area. (secret 96)

Bugs
In between the start area and the exit area is a pit containing several demons - if this is entered before the section of floor to the north-west is lowered, it will be impossible to leave the pit.

The aforementioned section of floor can be lowered by pressing the correct part of the surrounding walkway, allowing a quicker access to the exit and making secret #1 non-mandatory.

There is no way to lower the wall raised in accessing secret #1, so if you are still east of it when it is raised, you will be stuck.

Secret #2 can be accessed from the east - however, if you subsequently go through the teleporter and through the doorway, the door will close and you will be trapped.

Current records
The records for the map at the Doom Speed Demo Archive are:

Player spawns
This level contains four spawn points:
 * 1) facing south-east. (thing 340)
 * 2) facing west. (thing 426)
 * 3) facing west. (thing 427)
 * 4) facing west. (thing 428)

Things
This level contains the following numbers of things per skill level: