E3M4: Colonic Desecration (Return to Hadron)

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Return to Hadron maps
Episode 1

M1 M2 M3 M4 M5 M6 M7 M8 M9

Episode 2

M1 M2 M3 M4 M5 M6 M7 M8 M9

Episode 3
This level occupies the map slot E3M4. For other maps which occupy this slot, see Category:E3M4.
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E3M4: Colonic Desecration is the fourth map in the Slayers Swansong episode of Return to Hadron. It was designed by Matt Powell (cannonball) and uses the music track "".


Map of Colonic Desecration
Letters in italics refer to marked spots on the map. Sector, thing, and linedef numbers in boldface are secrets which count toward the end-of-level tally.


Other points of interest[edit]


  1. Use the blue key to open the nearby wall to the next area. On the other side, look northeast, a bit left from the spinal column, to spot an eye switch in a small hole. Shoot it to open a teleporter to the east. This teleporter takes you to the southeast area where you can get a BFG9000. (sector 81)
  2. In the yellow key area, there is a hidden switch at the southwest end. Use it, then go to the northwest part of the room to find energy cell packs and a megaarmor. (sector 166)
  3. Head west from where the blue key is to spot a switch hidden in the wall. Use it, then head a bit north from where the blue key is, then all the way west to reach a teleporter, a rocket launcher, and rockets. The teleporter takes you to a soul sphere and energy cells. (sector 170)


Demo files[edit]

Areas / screenshots[edit]


Routes and tricks[edit]

Current records[edit]

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

Run Time Player Date File Notes
UV speed
NM speed
UV max
NM 100S
UV -fast
UV -respawn
UV Tyson
UV pacifist

The (absence of) data was last verified in its entirety on April 3, 2022.


Map data[edit]

Things 301
Vertices 3143*
Linedefs 3083
Sidedefs 4891
Sectors 200
* The vertex count without the effect of node building is 2917.


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

Technical information[edit]

Inspiration and development[edit]


In the short passageway that opens when you press the blue switch, in the ceiling, the structure of the map draws the face of a cat.

See also[edit]


External links[edit]