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Doom 64

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Title Screen

Doom 64

Developer: Midway Games
Publishers: Midway Games (US/EU), Game Bank (JP)
Platform: Nintendo 64
Released in JP: August 1, 1997
Released in US: April 4, 1997
Released in EU: December 2, 1997

CodeIcon.png This game has unused code.
SoundIcon.png This game has unused sounds.
DebugIcon.png This game has debugging material.
LevelSelectIcon.png This game has a hidden level select.
RegionIcon.png This game has regional differences.
Carts.png This game has revisional differences.

Unlike all of the other console Doom games, which are just ports of the PC versions, Doom 64 has all-new content and was developed specifically for the Nintendo 64. While it loses a couple of the monsters from Doom II due to limited cart space, it features higher resolution resources, some nifty colored lighting effects, and a form of scripting which allows level designers to create far more interesting setups than the original engine ever did.

To do:
There's a debug mode here; I'm not sure how it's accessed and IDK enough to find all the code IDA won't disassemble

Features Menu

Doom 64 Features Menu.png

Enter the password ?TJL BDFW BFGV JVVB then pause during gameplay to access a features menu, which contains a level select, invulnerability, health, and weapon toggles, and an option to view the whole map.

Version Gameshark code
US 1.0 8005A7D3 0001
US 1.1 8005A883 0001
Japan 8005B5A3 0001
Europe 8005AA23 0001

(Source: Animal)

Breakdown Secret

The magenta highlights on this map show secret-flagged, tagless one-sided linedefs.

In an interview with the website Doom Depot, level designer Tim Heydelaar claimed that there was an undiscovered secret in Level 20: Breakdown. While this secret has seemingly been removed from the final game, remnants of it still exist – in particular, several one-sided linedefs with no action and method of activation are flagged as hidden. The hidden flag is used for obscuring sector height differences and interactive lines in the game's automap, making them appear as normal one-sided lines, and its use is pointless in the case of these lines.

While these flagged lines may simply be a mistake, several are in the room with the red key and one is in the secret room with the BFG9000, locations Tim mentions in the interview. In addition to the flagged lines, macro 17 is intended to activate on level start, but lacks the flag required to do so. Macro 23 lowers the floor of a sector with tag 27, but no sector with this tag exists. There are also references to macros 24 and 25, which do not exist.

(Source: Doom Depot Interview)

Regional Differences

US Europe/Japan
Doom64-BrightnessUS.png Doom64-BrightnessEU.png

The default brightness setting has been increased in the European and Japanese releases.

US/Europe Japan
Doom64-BloodEU.png Doom64-BloodJP.png

The blood spatter sprites have been recolored green in the Japanese version. The blood on the monster death sprites and various gore decorations is still red, however.

Revision Differences

Two versions (1.0 and 1.1) of the US ROM exist. While the actual functional difference between them is unknown, 1.1 contains an unused copy of the European version's copyright screen (under the lump name "PLLEGAL"), but does not carry over the increased default brightness from the actual European ROM.

(Source: Quasar)

Leftover Debug Strings

Doom 64 Unused Features Options1.png Doom 64 Unused Features Options2.png

Stored in the ROM in the list of strings used for the various menus are strings:


(They are separated by various used strings.)

These strings are all that is left of debug functionality that was to be part of the Features menu. You can re-activate these in the Features menu with the below GameShark code, however they do not have any functionality left.

Unused Features Menu Options Set 1:

Version GameShark Code
USA 8005AB67 001A
8005AB73 001D
8005AB7F 001F
8005AB8B 0023
8005AB97 0024

Unused Features Menu Options Set 2:

Version GameShark Code
USA 8005AB67 0026
8005AB73 0027
8005AB7F 0028

(Source: Samuel Villarreal (information), Punk7890 (GameShark code))

Debug Crash Text

Doom 64 Crash Message1.png Doom 64 Crash Message2.png

If the game ever crashed in a certain way, these messages would appear on screen and lock the game.

Placeholder Graphics


An odd texture that, unsurprisingly, doesn't appear during regular play. It automatically appears on walls that lack textures. Very rarely seen, it can be found when the player "breaks" the room-over-room effect, stumbling into a room inescapable without cheating. It's titled with a question mark in the game's internal WAD.

Unused Sounds



Two sounds related to the Zombieman and Shotgun Guy enemies that go unused, because the game has a limit of at most 2 sets of sounds for enemies sighting the player and their death animation.



Two sounds related to the Revenant enemy from Doom 2 that were most likely carried over from the PlayStation version of Doom, which Doom 64 is based on. One being the "action" sound Revenants chasing the player make, and the "punching" sound they make when their melee attack connects.

According to Tim Heydelaar, the monsters from Doom 2 that didn't make it into the game were cut due to storage constraints. Apparently, there were intentions to include at least the Revenant, since Randy Estrella has expressed his favoritism towards the enemy. Other sounds related to the Revenant are found whithin the ROM, but are given different names and uses. The swinging fist sound (originally DSSKESWG, renamed SNDDART in Doom 64) is reused as part of the dart traps found in some of the maps, and the Revenant fireball sound (DSSKEATK, named SNDTRACR in Doom 64) is used by the homing fireball traps, as well as Mother Demon's homing fireball attack.