MAP21: 'o' will be destroyed (Blitz: Race Against Time)

Blitz: Race Against Time maps
Ep.1: City 01 02 03 04 05 06 07 08 09 10
Ep.2: Techno 11 12 13 14 15 16 17 18 19 20
Ep.3: Grand Final MAP21: 'o' will be destroyed MAP22: Wake Up MAP23: SpinOnIt MAP24: Shortest Day in Hell MAP25: Citadel Farewell MAP26: NEFERTITIES MAP27: Blessed by the Wicked MAP28: Fly, you fools! MAP29: Last Battle for Ear1h MAP30: Absolute Winner!
Secret maps 31 32

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

MAP21: 'o' will be destroyed is the twenty-first map of Blitz: Race Against Time. It was designed by Vladislav Putintsev (Ear1h) and uses the music track "Task Force" by Lee Jackson, from Rise of the Triad. The par time defined in ZMAPINFO is 25 seconds.

The primary action of this level takes place in a circular arena, where the player battles a cyberdemon jr. in a gothic-themed setting.

Walkthrough[edit]

Map of 'o' will be destroyed

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.

Essentials[edit]

Head straight toward the circular arena, picking up the shotgun and soul sphere along the way. You will face one cyberdemon jr. (Hey, not too rough and below) or two (Hurt me plenty and above). Try to grab the rocket launcher located in the center of the arena. To proceed, you must defeat the weak cyberdemons within a strict time limit. Once they are defeated, continue east, where you will find the exit behind a 30-second door.

Other points of interest[edit]

At the very start of the level, go to the northern part of the room and press the switch, a blue armor will teleport to the shotgun's location.

If you go south and press another switch, a plasma rifle and ammo will teleport in as well.

Secrets[edit]

There are no official secrets on this map.

Bugs[edit]

Demo files[edit]

Areas / screenshots[edit]

Speedrunning[edit]

As this level does not contain official secrets, the NM 100S category is redundant.

Routes and tricks[edit]

Current records[edit]

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

Run	Time	Player	Date	File
UV speed
NM speed	0:15.66	ChaingunChaCha	2026-01-08	blitz21n15.zip
UV max
UV -fast
UV -respawn
UV Tyson
UV pacifist

The data was last verified in its entirety on January 16, 2026.

Statistics[edit]

Map data[edit]

Things	144
Vertices	4295*
Linedefs	4912
Sidedefs	8903
Sectors	1314

* The vertex count without the effect of node building is 3671.

Things[edit]

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

Single-player
Monsters	1-2	3	4-5
Imp	1	3	3
Dark imp	1
Cyberdemon Jr.	1	2	2
Weapons	1-2	3	4-5
Shotgun	1
Rocket launcher	1
Plasma gun	1
Ammunition	1-2	3	4-5
4 shotgun shells	3
Rocket	8
Box of rockets	8
Energy cell	4
Health & Armor	1-2	3	4-5
Stimpack	6
Medikit	4
Megaarmor	1
Items	1-2	3	4-5
Supercharge	1
Miscellaneous	1-2	3	4-5
Teleport landing	3
Voodoo doll	2

Multiplayer
Monsters	1-2	3	4-5
Imp	1	3	3
Dark imp	1
Cyberdemon Jr.	1	2	2
Weapons	1-2	3	4-5
Shotgun	1
Rocket launcher	1
Plasma gun	1
Ammunition	1-2	3	4-5
4 shotgun shells	3
Rocket	8
Box of rockets	8
Energy cell	4
Health & Armor	1-2	3	4-5
Stimpack	6
Medikit	4
Megaarmor	1
Items	1-2	3	4-5
Supercharge	1
Miscellaneous	1-2	3	4-5
Cooperative start	4
Teleport landing	3
Voodoo doll	2

Technical information[edit]

Inspiration and development[edit]

Trivia[edit]

This level is a reference to MAP11: Circle of Death from Doom II.

Sources[edit]

External links[edit]

Blitz: Race Against Time demos at the Doom Speed Demo Archive