MAP13: Grunting hounds (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 MAP11: YOURE CAR MAP12: Nar Shaddaa MAP13: Grunting hounds MAP14: Portal Control MAP15: Romero get into the icon of sin MAP16: Thirty Seconds to Earth MAP17: Yet another UAC-Like base MAP18: A Star Goats: Kill all of them MAP19: Blood factory MAP20: System Overdrive
Ep.3: Grand Final 21 22 23 24 25 26 27 28 29 30
Secret maps 31 32

This level occupies the map slot MAP13. For other maps which occupy this slot, see Category:MAP13.

MAP13: Grunting hounds is the thirteenth map of Blitz: Race Against Time. It was designed by Slavius and uses the music track "Flying Battery Act 1", from Sonic & Knuckles. The par time defined in ZMAPINFO is 30 seconds.

The level begins on a floating air station. In the distant background, a battle is taking place between allied marines and Hell knights in remote areas.

Walkthrough

Map of Grunting hounds

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

Pick up the plasma rifle and ammo, then proceed forward until you reach a dead end. Turn left, then move to the right and go down. Continue until you encounter the second Hell knight, then turn left. Head toward the two energy cells, and after facing a third Hell knight, turn left again and move toward the southern part of the level. Then head north toward another Hell knight and an energy cells until you reach the passage leading to the 30-second door and the level exit.

Secrets

There are no official secrets on this map.

Speedrunning

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

Current records

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

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

The (absence of) data was last verified in its entirety on July 2, 2025.

Statistics

Map data

Things	178
Vertices	7302*
Linedefs	5112
Sidedefs	10155
Sectors	805

* The vertex count without the effect of node building is 4517.

Things

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

Single-player
Monsters	1-2	3	4-5
Hell knight	41
Plasma marine	12
Weapons	1-2	3	4-5
Plasma gun	1
Ammunition	1-2	3	4-5
Energy cell	11
Items	1-2	3	4-5
Health bonus	4

Trivia

• The level layout and method of progression are reminiscent of the game Perplexus, where the player must guide a ball to the finish by rotating a transparent sphere and navigating through an internal maze.
• The music and overall action of the level appear to be inspired by the Flying Battery Zone from Sonic & Knuckles.