This is a sub-page of Shin Megami Tensei III: Nocturne.

Debug Menu

There is a debug menu inside the game with a ton of options that were used by the developers to test the game.

To enter the debug mode, you must enter the save terminal. While still in the save terminal, swap the disc with another game. Then exit the save terminal and you'll hopefully be greeted with a debug menu. (This is not fail proof, it seems to result in a black screen most of the time.) After that you need to put the disc back in.

Another option you can do with a memory editor is to edit this address 202E2134 to a map the game can't normally load. E.g 500 while entering a Shop or Cathedral of Shadows. Exiting the shop you entered while changing the map area will send you to the debug menu.

Alternately, you can apply the following code to enable the debug menu at any point in the game. Any cheat device that supports raw codes, such as a GameShark or CodeBreaker will accept them.
Enable Code (Only activate this on a real PlayStation 2)

902C45D8 0C0B111E

Enable Debug Menu (Press L1+Start anytime during game)

D056DEC2 0000FBF7

005AD7C0 00000002

Option	Notes	Screenshot
GAME START	Simply closes the debug menu and launches the game from the opening logos.
NEW BATTLE TEST	NEW BATTLE TEST Allows you to test encounters and bosses on different stages. Press X, you'll get a party with a LV.50 main character, Mizuchi, Naga and Queen Mab. Square on controller checks off btl_test but gives you same team. Triangle gives you only the main char at LV.1. L2 and R2 launches boss test option. Select opens encounter table. ENCOUNT: Option to choose which encounter to test. STAGE: Option to choose which stage the battle should be on. PLAYER: Allows you to change how many demons are in the party. DAMAGE, PRESS, NEGODEBUG, NEGOBOUGAIA, NEGOJIHATU and BTL_TEST aren't functional in the final game.
BATTLE FIELD TEST	Allows you to look at all the different battlefields that are in the game. By pressing right or left on the d-pad, you can change the battlefield that you want to load. Pressing R1 or L1 changes the sub-value. Pressing triangle or square allows you to change the camera angles. Pressing select turns off the debug HUD.
MODEL COLLISION EDITOR	Not functional, returns you to the debug menu.
KERNEL TEST	It's certainly a Kernel Test. Note that this usually would hardlock your game, however that's only because it doesn't find the files it tries to load. dds3datamodelfieldplayer_a.PB dds3datafldff108f108_000.LB dds3datafldff108f108_001.TB dds3datafldff108f108_001.f2 dds3datafldfbinnpc01.PB dds3datafldff108f108_001.f1 dds3datamodeleventtestplayer.PB These are the files it attempts to load in this order, and the files that are missing are all of the files in the f108 directory, and the dds3datamodeleventtestplayer.PB file. Now if you sub in any other field like f015 and change the names of the files, it will work.
EVENT TEST	This one allows you to view pretty much any cutscene that uses .bf as the file format to store it's text. Meaning pretty much every used cutscene in the game except for IPS/IPU movies which are only shown on rare occasions. However, a few unused cutscenes can be accessed using this mode, which is why it is so significant. By using the D-Pad you can scroll through every cutscene one by one. Note that not all of the numbers signify an event, if it doesn't load then the file doesn't exist. By pressing Square or R1 you can scroll 100 at a time. Triangle or L1 can be used to scroll 100 at a time backwards. X resets the flag. Pressing Circle lets you view the cutscene.
EVENT VIEWER	Allows you to view Work in Progress cutscenes. It's also possible to create cutscenes with this debug option but it's difficult. Pressing Triangle opens up the menu where you can load and save projects. If you press Triangle again, you can see all of the things that are used in the cutscene; camera angles, background music, characters, field, etc. Pressing Start, starts the cutscene. Select puts you back to the beginning of the cutscene. Circle removes the debug hud. By using the D-Pad you can view the cutscene frame by frame, or 10 frames at a time. X and Square changes the camera angle.
FIELD	Hardlock.
MESSAGE SCRIPT TEST	Pressing X, Circle or Triangle lets you change the text that is displayed on screen. The messages translated are "This is a test message" and "This is a Dionysus message". Square changes the background from a picture of Yuko Takao, to an early rendering of Cathedral of Shadows, to an early menu screen.
CAMP TEST	Opens the pause menu. One interesting effect with this one is that it completely changes your demon roster, magatama and items. It also resets your story state. Exiting sends you back to Debug Menu.
COMBINE TEST	Opens the Cathedral of Shadows to test fusions. Exiting sends you back to Debug Menu.
SHOP TEST	Opens a Junk Shop. Exiting sends you back to Debug Menu.
RAG TEST	Opens a Rag's Jewelry shop. Exiting sends you back to Debug Menu.
RECOVER TEST	Opens up a Healing Spring. Exiting sends you back to Debug Menu.
TERMINAL TEST	Opens the terminal in Shinjuku Hospital. Exiting sends you back to the basement in Shinjuku Hospital.
RESULT2 TEST	Opens a result screen. Your demons level up here surprisingly. The game gives the demons experience and levels them up. This was used to test the stuff in the 'result2' folder.
NAME ENTRY TEST	Opens a Name Entry screen where you can change the main character's name. This option resets your file to have no items, demons or magatama and also resets the point of the story to the start of the game.
MODEL VIEWER	The model viewer lets you view all of the models contained inside the 'model' folder. This includes models that are used in cutscenes, models that are used in battles, and even models that are completely unused. The model viewer has 11 options to mess around with. MODELː Allows you to view different models. CAMERAː Allows you to change the camera angle by rotating or simply going further back or zooming in. Press square to change the mode. OBJECTː Allows you to move and rotate the model. Press square to change the mode. MOTIONː Shows the motion of the model, allows you to pause, play in slow motion and even see when the animation loops. LIGHTː Allows you to move or change the lightning. FOGː Option for adjusting fog. FACE-DIVː Changes the shading. ARRANGEː Allows you to add another model to the screen. You can compare two models this way. Sync-motion syncs the two models together. TEXTUREː Option for viewing the textures used for the model. OPTIONː You can change the background color, and toggle debug stuff here. EFFECTː You can view the effect used on the model here.
SOUND TEST	Hardlock
FONT TEST	Hardlock
PARTICLE EDITOR	Sends you back to debug menu.
SPRITE VIEWER	Sends you back to debug menu.
MAGATUHI EDITOR	Sends you back to debug menu.
RESTORE PLAYDATA	Sends you back to debug menu.
NEGO PLAYDATA SET	Sends you back to debug menu.
PUZZLE BOY GAME	Launches the dreaded Puzzle Boy Game.
PUZZLE BOY MAP EDITOR	This loads up the puzzle boy game, but crashes instantly so it's not functional. However, there are some leftover text strings from how it used to work. FLOOR WALL NORMAL BLOCK CORE NORMAL BLOCK ROUND BLOCK CORE ROUND BLOCK EXIT
MOVIE VIEWER	Option for viewing IPS/IPU files. However, it doesn't work properly and only displays the title screen movie 2. By pressing circle, you can start the movie. Select lets you pause the movie at a certain frame.
STAFF TEST	Launches the Staff Roll.
ENDSAVE TEST	Sends you to the save screen after the staff roll. You can start a cycle 2 this way even if your file hasn't even gotten past Shibuya.

Debug Options

A few debug options not associated with the debug menu can be seen and enabled here. If you plan on activating these codes on real hardware, enable this code 902C45D8 0C0B111E. If not, skip this step.

Debug Displays

Enable FullOpen Debug

0052E324 00000001

Enable Debug Options

0052DCA4 00000001

• Enable FullOpen Debug will allow you to see all of the current map in the pause menu with this code on.


• Enable Debug Options will allow you to view and enable a few extra debug displays. While in battle, press L1 to bring up collision display, R1 to look at properties of the demons in battle, L1+R1+L2+R2 to win a battle, and A on a USB keyboard to bring up more info.

With the Enable Debug Options code on, you can enable a couple more displays while in game at anytime. It's unclear what they mean. They appear to have no effect when they are on.

Display's DISTBLUR_NUMBERR

0052DE64 000000xx

Display's RIPBLUR_NUMBERR

0052DE68 000000xx

Where xx is, put any number there.

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  Collision display in battle.
  

  
  

  
  


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  Miscellaneous debug info when pressing A on a USB keyboard.
  

  
  

  
  


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  Demon properties when pressing R1 in battle. You can modify and change demons here.
  

  
  

  
  


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  Battle debug menu when pressing circle after opening demon properties.
  

  
  

  
  


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  State option menu. Here Bishamon has his state changed to stoned.
  

  
  

  
  


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  Changing HP/MP with the debug menu.
  

  
  

  
  


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  Holding L2 and pressing left or right on the D-PAD changes the camera angle.
  

  
  

  
  


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  DISTBLUR_NUMBER and RIPBLUR_NUMBERR. These don't appear to have any effect on anything.
  

  
  

  
  


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  FullOpen debug enabled. This fully uncovers the current map you are in.
  

  
  

  
  

DMA-VIF Dump

A debug option that lets you dump current VIF data. This is most likely 3D model data currently loaded in the map. It generally dumps 400 - 500K of memory. This only works presumably with development hardware via a console display. An emulator will display it perfectly fine in a console window if you have it enabled. Below is a code to dump VIF data. You can click here to see an example of what type of data this outputs.

Press R1+Start to Dump VIF Data

D056DEC2 0000F7F7

0052DCC8 00000001