Mario Kart: Double Dash!!/Debug Content
This is a sub-page of Mario Kart: Double Dash!!.
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While there aren't full fledged debug menus as seen within the debug build, a sizable amount of leftovers are still present across all retail versions.
General Debug Features
Debug Camera
The debug camera can be controlled with a second controller plugged into port 2. To enable the debug camera, start a race and press Up on the D-Pad of the first controller plugged into port 1. To disable the camera, press Down.
Some variables will appear on screen when the debug camera is active. X, Y and Z under CAMERA display the current position of the camera, while X, Y and Z under LOOK display the current position that the camera is looking at. X_DIR and Y_DIR display the degrees that the camera is rotated to, and FOVY displays the field of view. X_DIR and FOVY are the only variables with a maximum, with X_DIR only being able to rotate the camera 80 degrees up and down, and FOVY being able to set the field of view between 1 and 180.
The controls are as follows:
- B/A: Zoom In/Out.
- Y/X: Move Up/Down.
- L/R: Rotate Left/Right.
- Z: Reset to a default position.
- Stick Up/Down: Look Up/Down.
- D-Pad Up/Down: Move Forward/Backward.
- D-Pad Left/Right: Strafe Left/Right.
| The default position after letting go of the Z button is as follows: | |
CAMERA:
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LOOK:
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| USA | Europe / Australia | Japan | |
|---|---|---|---|
| Encrypted (AR) | T4Z0-BZCR-RDNNJ C86V-J3JB-4GYCA ZA4F-1RFF-JX5E9 5H6V-5HV6-RMR9X 7UV9-8QH5-KWH3N |
ZN50-V07A-MNJ18 9WUJ-89HT-5WTJJ C4HD-WXY9-7VB45 KPB3-GKFZ-0BEC6 CAWU-PCQW-WPZU6 |
C0CN-29UN-K18P9 CAYP-UGRP-AXPXN U677-K5HY-DRPQQ J58F-B7CT-4KFEB W41H-RE3D-4EGQQ |
| Decrypted (Gecko) | 3A3A4D6C 00000004 04361280 8029F1E4 3A3A4D6C 00000008 04361280 8029F248 |
3A3AEB8C 00000004 0436B0C0 8029F1C0 3A3AEB8C 00000008 0436B0C0 8029F224 |
3A3BF38C 00000004 0437B8A0 8029F20C 3A3BF38C 00000008 0437B8A0 8029F270 |
Debug Process Bar
This function draws several colored bars on the bottom of the screen. This process bar works identical to the one found in the debug build, with an exception for the pink bar, which doesn't do anything, and it's unknown what it was meant to do.
| USA | Europe / Australia | Japan | |
|---|---|---|---|
| Encrypted (AR) | NJT3-9QB8-4CRQG 2UDU-XFM4-CZZQK 2YTE-VKKX-T878P |
B9X1-FERX-KA911 TU00-BHX6-J5HTA G11V-1CWM-P53HF |
KT9H-TM08-7ZR0F 7TUX-AFE9-BRPYC ZU71-3ACE-YR7ZW |
| Decrypted (Gecko) | 403CAD28 00010C01 403CAD28 00013001 |
403D4B60 00010C01 403D4B60 00013001 |
403E5350 00010C01 403E5350 00013001 |
Item Slot Table
This function prints the contents of the item slot table read from itemslotlist.dat that is currently used for the current race or battle. The function that prints this is called ItemObjMgr::draw, and is also present in the debug build.
| USA | Europe / Australia | Japan | |
|---|---|---|---|
| Encrypted (AR) | 6N3C-5175-85VWG CZPX-W2G1-9XBHW KPF3-ZV8H-6PF4A K1QJ-8X74-DBC8H ZCEU-G0QE-Y68X6 72J3-6FV5-ANTZP CEWE-P2KF-N96M7 0DGH-CMDK-4FMU9 AYJ7-V3YQ-6CUA6 |
ZRGP-GJR5-BFE66 MDZK-GEJH-WF2RE KPF3-ZV8H-6PF4A 73U8-6KUA-X8XHV TNKK-XCXM-VEE1W 72J3-6FV5-ANTZP CEWE-P2KF-N96M7 0DGH-CMDK-4FMU9 AYJ7-V3YQ-6CUA6 |
FBD5-WXGV-BZ5YF CZPX-W2G1-9XBHW KPF3-ZV8H-6PF4A K1QJ-8X74-DBC8H JQF1-WUVB-PDYA9 72J3-6FV5-ANTZP CEWE-P2KF-N96M7 0DGH-CMDK-4FMU9 AYJ7-V3YQ-6CUA6 |
| Decrypted (Gecko) | c21892f0 00000007 9421fff0 7c0802a6 90010014 806dab20 3d808020 618cbfe0 7d8903a6 4e800421 80010014 7c0803a6 38210010 4e800020 60000000 00000000 |
c2188194 00000007 9421fff0 7c0802a6 90010014 806dab40 3d808020 618cbfb0 7d8903a6 4e800421 80010014 7c0803a6 38210010 4e800020 60000000 00000000 |
c21892f0 00000007 9421fff0 7c0802a6 90010014 806dab20 3d808020 618cc008 7d8903a6 4e800421 80010014 7c0803a6 38210010 4e800020 60000000 00000000 |
LAN Entry Screen Debug State
The LAN mode connection screen has an extra debug state (which calls SceneLanEntry::debug) used to cycle through the messages. The messages can be cycled by pressing Up or Down on a controller plugged into port 1. This screen can still exited by pressing the B button.
| Europe / Australia | Japan | USA | |
|---|---|---|---|
| Encrypted (AR) | 07J4-Z85R-HXT98 RX7N-BUJY-QG8WD BADJ-WQ5G-2640X |
NNY6-CQTW-WZ7MW KFAK-QW8U-BXN25 5VB1-V332-5MN3C | |
| Decrypted (Gecko) | 041718c4 3800000b 0417195c 3800000b |
04172a20 3800000b 04172abc 3800000b | |
SceneTest Debug Menu
SceneTest brings up a debug menu that allows the player to select any menu present in the game. This menu was also present in the debug build and is the only functioning remnant of the debug menu, as the other submenus had most of their code removed.
The codes below will load the menu after pressing any button on the title screen.
| USA | Europe / Australia | Japan | |
|---|---|---|---|
| Encrypted (AR) | DX2Q-85MM-A6A8A QR6U-KQYU-N02B6 8Z4C-KTED-TDTVX W036-K1AH-6VRC8 UV9Y-XM33-E9X2N CZ72-BG2N-5PT29 JGHB-DM1H-HW39D A975-F6U7-4ANUY |
GEEJ-JBJ3-Y27P7 3G33-BA47-ACU4V 2GZV-XZXC-0PFN5 W036-K1AH-6VRC8 9UGG-M20R-GG454 CZ72-BG2N-5PT29 ERUR-7RR8-U367J A975-F6U7-4ANUY |
8V89-J3E3-C9RR8 QR6U-KQYU-N02B6 8Z4C-KTED-TDTVX W036-K1AH-6VRC8 6KY6-0D5G-E6T0T CZ72-BG2N-5PT29 JGHB-DM1H-HW39D A975-F6U7-4ANUY |
| Decrypted (Gecko) | c212d95c 00000002 38600002 808daa00 90640044 00000000 c21d9838 00000003 3860000e 3c80801d 60841d78 7c8903a6 4e800421 00000000 |
c212d980 00000002 38600002 808daa20 90640044 00000000 c21d981c 00000003 3860000e 3c80801d 60841d04 7c8903a6 4e800421 00000000 |
c212d95c 00000002 38600002 808daa00 90640044 00000000 c21d9860 00000003 3860000e 3c80801d 60841d78 7c8903a6 4e800421 00000000 |
Exception Handler
If the game crashes at any point, pressing A, B, X, Y, L, R, Z in order on any controller will bring up an exception handler. After the crash has been fully processed, the screen starts autoscrolling.
Debug Symbol Map
debugInfoS.MAP is a text file containing addresses and file names for some of the source files, which would have been resolved into function names if the game were to crash and the exception handler was triggered. This file is also included in the debug build, North American kiosk demo and European kiosk demo, but not present the Japanese kiosk demo. In all iterations of debugInfoS.MAP, the addresses do not align with the respective builds' executable .dol code. The debug build's debugInfoM.MAP file, however, does align with its game code.
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Download debugInfoS.MAP Linker Address Map
File: MarioKartDD-DebugInfoS.7z (1.08mb) (info)
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Course Debug Features
Debug Course Models
There is an unused halfword debugging variable with the symbol name Course::sDrawAreaModel. If bit 0 of this variable is set, the game will draw black cubes or cylinders in specific areas of specific courses. The function responsible for deciding when to draw the debug model and which area of the course in specific is called Course::drawModelForDebug. Debug models are present in one of nine of the following stages:
Peach Beach - A debug model is drawn under the pink arch. Conversely, since the Award Ceremony is a separate track, it does not have any models drawn.
Mushroom Bridge - A debug model is drawn inside both tunnels.
Mario Circuit - A debug model is drawn inside the tunnel.
Mushroom City - A debug model is drawn at the beginning when going down the road, and on top of the dead zone at the end of the lap.
Yoshi Circuit - A debug model is drawn in the shortcut tunnel.
Wario Colosseum - A debug model is drawn inside of one of the overhangs.
Dino Dino Jungle - A debug model is drawn inside the entirety of the crystal cave.
Bowser's Castle - A debug model is drawn just before the lava room.
Luigi's Mansion - Debug models are covering the majority of the stage, with the exception of the roof terrace.
| USA | Europe | Japan | |
|---|---|---|---|
| Encrypted (AR) | 45G8-G3TY-PKGRJ A4U6-TN0G-ZWA3Z |
N99N-C336-XNZ1B DJT2-D1HT-D2VUE |
83WT-NTYY-Z5FBN W1ZH-Y1G4-0PET1 |
| Decrypted (Gecko) | 023cb7d0 00000001 |
023d5610 00000001 |
023e5df0 00000001 |
DK Mountain Bridge's Print Message
The bridge on DK Mountain just before the finish line (whose object name is StringBridge) loads an .lbd file (used to configure the bridge) depending on one of the object's setting values. This can only ever be 4501, so the file loaded is always in the course's archive at path Bridge/Bridge_4501.lbd.
In StringBridge's constructor object, there is a conditional block which is entered if the requested file does not exist, which can never happen during normal gameplay. It prints the error message (by calling JSystemM::JUTReport) using a format string, as seen in the screenshot ("BridgeParam Not Found. /Bridge/Bridge_4501.lbd") if the bridge's object's setting value is 4501.
The formatted string can be found in the following locations:
| USA Virtual Address | Europe / Australia Virtual Address | Japan Virtual Address |
|---|---|---|
| 0x80337b78 | 0x803419b8 | 0x80352198 |
Leftover Debug Features
Screenshot Feature
During development, a dedicated screenshot feature was implemented, presumably to take direct high quality captures for media purposes. This feature is mentioned by the game's debug symbol map, but otherwise no longer exists in the final game. The following functions are present in the debug symbol map:
ScrnShot::createScrnShot(int, int, _GXTexFmt) ScrnShot::ScrnShot(int, int, _GXTexFmt) ScrnShot::capture() ScrnShot::saveFile() ScrnShot::convTextureToBitmap() ScrnShot::genMessage(JORMContext *) ScrnShot::listenPropertyEvent(JORPropertyEvent const *) ScrnShot::sScrnShot()
Despite this feature no longer being present in the final game, its code is present in the game's debug build.
Force Lap Functionality
In the debug build of the game, there is functionality to force the lap count to be either 1 or 2 via button combinations. The part of code that reads button combinations to set the RaceMgr::sForceTotalLapNum variable is not present in the retail builds, however this variable is still read and can overwrite the lap count if the variable is non-zero. Since RaceMgr::sForceTotalLapNum is never written to in the retail builds, it is impossible to see this unused functionality unless the variable is written to via cheating.
The following table represents the addresses of the RaceMgr::sForceTotalLapNum halfword variable:
| USA Virtual Address | Europe / Australia Virtual Address | Japan Virtual Address |
|---|---|---|
| 0x803cb7ec | 0x803d562c | 0x803e5e0c |
