MAP21: Bulldog Skin (BTSX-E2)


Back to Saturn X E2 maps 17-23

01 02 03 04 05
06 07 08 09 10 11
12 13 14 15 16
(17 - 23)
24 25 26 27
Secret map: 31

This level occupies the map slot MAP21. For other maps which occupy this slot, see Category:MAP21.

MAP21: Bulldog Skin is the twenty-first map of the second episode of Back to Saturn X. It was designed by Adam Woodmansey (Khorus) and Sarah Mancuso (esselfortium), and uses the music track "Stormwater," composed by James Paddock (Jimmy). In the official add-on version, this level's name is Rat-Safe Cronk.

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Map of Bulldog Skin
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. In the large room in the northwestern section of the map where a fight with two teleporting cyberdemons takes place, the wall on the southwesternmost corner of the room (directly opposite the stairs that can be used to reach the higher level of the room) has the lower section offset from the upper part. This can be lowered to reveal a cranny (sector 283) with a stimpack, two rockets and three energy cells.
  2. In the northwesternmost room containing the blue key, four blue niches with an inscribed pentagram can be seen on the walls. Run towards the southeastern niche (the only one with no bricks hiding parts of the pentagram), which can be lowered to reveal a hidden teleporter to a hole in the altar (sector 225) with the blue key, where you can collect a soulsphere. Press the switch to raise the floor so you can leave.


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 February 21, 2022.


Map data[edit]

Things 426
Vertices 3090*
Linedefs 3039
Sidedefs 4711
Sectors 475
* The vertex count without the effect of node building is 2506.


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

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]