E2M1: Collider Anomaly (ConC.E.R.Ned)

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ConC.E.R.Ned maps
Dead Colliding

M1 M2 M3 M4 M5 M6 M7 M8 M9

Parallel World
Hellish Extermination

M1 M2 M3 M4 M5 M6 M7 M8 M9

This level occupies the map slot E2M1. For other maps which occupy this slot, see Category:E2M1.

E2M1: Collider Anomaly is the first map in the Parallel World episode of ConC.E.R.Ned. It was designed by Matt Powell (cannonball) and uses the music track from Vile Flesh's MAP07 and MAP28, created by Gwyn Williams.


Map of Collider Anomaly
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.


Open the door in front of you to confront a zombieman guarding a shotgun on I'm Too Young To Die and Hey Not Too Rough skill levels, or shotgun guys on Hurt Me Plenty (HMP) or higher, then go round the corner to activate three crushers that you must run past to reach a chainsaw; watch out for some demons that are released as you walk under the second crusher. Go through the door to enter a square room with some imps and note the three pillars in the middle of the room, then go to the east side of the room and press the skull switch to lower the north pillar which has a teleporter on it. Step into the teleporter to enter the south-west room, head east through the damaging blood to get to some steps leading up to the second level with some zombies then use the lift on your left to get up to the third level. Walk along the ledge to another lift and ride it up, flip the switch on your left then enter the nearby teleporter to return to the center area; the pillar holding the red keycard has lowered allowing you to collect it.

Kill any demons that teleport in then open the north door to find another demon (or cacodemon on HMP or higher) guarding a button that will lower the final pillar, letting you reach another teleporter that leads to the hallway visible through the east windows. Press the skull switch by the south wall to open three doors hiding demons and shotgun guys then go through the middle door to find a switch that will lower the wall behind it, letting you drop into a dark rectangular tunnel. Head round to the east side of the hallway, hugging the walls to avoid stepping in the blood, then go through the west doorway to enter a chamber containing the blue keycard on a pillar. Throw the switch in the west wall to open the north wall and reveal shotgun guys and lost souls guarding a second switch, which will open the south wall revealing a cacodemon and two imps guarding a third switch; throwing this third switch will lower the pillar with the blue key.

Take the key then step into the teleporter that appears in the west wall to return to the center area, where some imps and spectres have teleported in. Go through the south door and follow the steps down past some zombiemen, shotgun guys and lost souls to a T-junction with spectres on either side, then turn left or right and go round to the exit door which is protected by imps. Open the exit door and turn round to kill some more shotgun guys that are revealed behind you, then go through the door and press the skull switch on the east side of the center column to finish the level.

Other points of interest[edit]


  1. There are five columns on the second level of the south-west room. Look at the west side of the middle column to see a tiny button recessed into it, then shoot this button to open a wall to the east with an armor and a computer area map. (sector 148)
  2. Teleport to the area east of the red key, then use the blinking window to return to the red key room. Quickly enter the southeast alcove to pick up a light amplification visor. (sector 124)
  3. Open the blue door, then go to the ledge at the steps, using a small peg. Open the south wall there to find shotgun shells, armor bonuses and a medikit. (sector 167)


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 02:37 Nevanos 2013-09-04 c2r1-237.zip
NM 100S
UV -fast
UV -respawn
UV Tyson
UV pacifist

The data was last verified in its entirety on December 20, 2021.


Map data[edit]

Things 266
Vertices 1513*
Linedefs 1675
Sidedefs 2676
Sectors 389
* The vertex count without the effect of node building is 1269.


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

Technical information[edit]

Inspiration and development[edit]


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