Changes which character has Luma. Only one character can have him.
Luma's voice clips will still only be heard when playing as Rosalina.

NTSC-U
047B9F18 2C0000XX

PAL
047C8978 2C0000XX

NTSC-J
047C7FE4 2C0000XX

NTSC-K
047B6D38 2C0000XX

XX values:
00 = Mario
01 = Baby Peach
02 = Waluigi
03 = Bowser
04 = Baby Daisy
05 = Dry Bones
06 = Baby Mario
07 = Luigi
08 = Toad
09 = Donkey Kong
0A = Yoshi
0B = Wario
0C = Baby Luigi
0D = Toadette
0E = Koopa
0F = Daisy
10 = Peach
11 = Birdo
12 = Diddy Kong
13 = King Boo
14 = Bowser Jr.
15 = Dry Bowser
16 = Funky Kong
17 = Rosalina (Default)
18 = S Mii AM
19 = S Mii AF
1A = S Mii BM
1B = S Mii BF
1C = S Mii CM
1D = S Mii CF
1E = M Mii AM
1F = M Mii AF
20 = M Mii BM
21 = M Mii BF
22 = M Mii CM
23 = M Mii CF
24 = L Mii AM
25 = L Mii AF
26 = L Mii BM
27 = L Mii BF
28 = L Mii CM
29 = L Mii CF

EDIT: a friend gave me the code for thunder cloud in discord, i had searched for "thunder cloud" but not for "TC" sry for that^^
https://mariokartwii.com/showthread.php?tid=1725

Hey, so i would like to know if codes for those exist (i searched but didn't found them) or if they could be made (i am on PAL but ofc it's better if everyone can use them)
I found rly amazing codes on that forum so thx alot for all that work

-Code that disable the shrinking caused by TC

-Code to make the Blue Shell drop on the ground when hit/damaged (like for the other items that can drop) (I am using the code that allows you to drag the blue shell, however when dropped it's not on the track, it just vanishes like normal which is a bit counter intuitive with the new drag behavior) (i know about "All Items Can Land v2" but this allow every items to drop and i prefer to avoid that)

-Code to make the Fake Item Box not impacted by gravity when it's thrown backward (this would allow you to set FIB traps on various jump points while in air, like in MK64)

-Code for making players affected by the Blooper slower (and maybe disabling the speed boost counter that instantly remove all the ink, making the blooper even more useless than it is)

-Code that allows you to increase (or decrease) the invincibility frames (like after getting hit by a shell or a bomb)

-Code to adjust (decrease) the speed boost of wheelies

I was wondering if there existed a code which would set the game to use a specific drift mode and skip drift selection menus globally. Rn I'm looking one for automatic, but it would be great to have an option for manual as well.

Ps. There exists a hidden button in the license settings called "DriftMode" which presumably would have acted as a global drift selection for all modes or just set a default drift mode for you (the fact it uses the same text ID as the drift selection menu). Now would it be possible to enable/recreate it? And I'm only asking this out of curiosity.
More info about the hidden button here.

Fix CPU Slipstream Mission Scoring "Bug" [Ro]

This code fixes a "bug" where when playing a Slipstream Mission, you'll score when a CPU slipstreams. With this code, it will now only score when you slipstream.

NTSC-U
C2580BAC 00000004
A0050B9E 819B0000
818C0004 818C0014
718C0002 40820008
38000000 00000000

PAL
C25873D0 00000004
A0050B9E 819B0000
818C0004 818C0014
718C0002 40820008
38000000 00000000

NTSC-J
C2586D50 00000004
A0050B9E 819B0000
818C0004 818C0014
718C0002 40820008
38000000 00000000

NTSC-K
C2575428 00000004
A0050B9E 819B0000
818C0004 818C0014
718C0002 40820008
38000000 00000000

Code creator: Ro

A new service replacement of the defunct Nintendo wfc supporting Some games with more support in the future.
https://github.com/dawnofthed/Dawnofthed-WFC

Does anybody happen to have this code by BullyWiiPlaza (assuming it was ever public)? It copies the movement from an online opponent into your player.

With this code, you will be able to access any specific unlock screen you want. Simply go back to the License Selection screen and select a license (you can do this as many times as you want - it will always bring up the unlock screen).
The last two lines should prevent saving the license when after the unlock screen, in case you don't actually want to unlock anything in the savegame.

(PAL)
045eb920 386000XX
04854154 3bc000YY
04854158 60000000
048541a4 60000000
048542f8 60000000

(USA)
04632bf8 386000XX
04858ca4 3bc000YY
04858ca8 60000000
04858cf4 60000000
04858e48 60000000

(JPN)
045eb1fc 386000XX
048537c0 3bc000YY
048537c4 60000000
04853810 60000000
04853964 60000000

(KOR)
045d9abc 386000XX
04842514 3bc000YY
04842518 60000000
04842564 60000000
048426b8 60000000

X Values:
- 90: Character screen
- 91: Vehicle screen
- 92: Mii screen
- 93: Mode screen

Y Values: Unlock flag. See the list below. Make sure whatever you're trying to unlock is related to the X values you inputterd above. So for example, if you set XX as 91 (vehicle screen), set a YY value corresponding to a vehicle.

==== Unlock flags (YY) ====
STAR_CUP_50CC = 0x00,
STAR_CUP_100CC = 0x01,
STAR_CUP_150CC = 0x02,
STAR_CUP_MIRROR = 0x03,
BANANA_CUP_50CC = 0x04,
BANANA_CUP_100CC = 0x05,
BANANA_CUP_150CC = 0x06,
BANANA_CUP_MIRROR = 0x07,
LEAF_CUP_50CC = 0x08,
LEAF_CUP_100CC = 0x09,
LEAF_CUP_150CC = 0x0A,
LEAF_CUP_MIRROR = 0x0B,
LIGHTNING_CUP_50CC = 0x0C,
LIGHTNING_CUP_100CC = 0x0D,
LIGHTNING_CUP_150CC = 0x0E,
LIGHTNING_CUP_MIRROR = 0x0F,
MIRROR_MODE = 0x10,
DRY_BONES = 0x11,
TOADETTE_NORMAL = 0x12,
TOADETTE_ALTERNATIVE = 0x13,
BABY_DAISY = 0x14,
BABY_LUIGI_NORMAL = 0x15,
DIDDY_KONG = 0x16,
BOWSER_JR = 0x17,
DAISY = 0x18,
BIRDO_NORMAL = 0x19,
ROSALINA_NORMAL = 0x1A,
ROSALINA_ALTERNATIVE = 0x1B,
DRY_BOWSER = 0x1C,
FUNKY_KONG_NORMAL = 0x1D,
FUNKY_KONG_ALTERNATIVE = 0x1E,
KING_BOO = 0x1F,
MII_OUTFIT_A = 0x20,
MII_OUTFIT_B_NORMAL = 0x21,
MII_OUTFIT_B_ALTERNATIVE = 0x22,
BABY_LUIGI_ALTERNATIVE = 0x23,
BIRDO_ALTERNATIVE = 0x24,
CHEEP_CHARGER = 0x25,
TINY_TITAN_NORMAL = 0x26,
TINY_TITAN_ALTERNATIVE = 0x27,
BLUE_FALCON = 0x28,
SUPER_BLOOPER = 0x29,
DAYTRIPPER = 0x2A,
SPRINTER_NORMAL = 0x2B,
PIRANHA_PROWLER = 0x2C,
JETSETTER = 0x2D,
HONEYCOUPE = 0x2E,
QUACKER = 0x2F,
MAGIKRUISER_NORMAL = 0x30,
MAGIKRUISER_ALTERNATIVE = 0x31,
JET_BUBBLE = 0x32,
ZIP_ZIP = 0x33,
SNEAKSTER = 0x34,
DOLPHIN_DASHER = 0x35,
SHOOTING_STAR = 0x36,
SPEAR_NORMAL = 0x37,
SPEAR_ALTERNATIVE = 0x38,
PHANTOM = 0x39,
KARTS_AND_BIKES_ON_50CC = 0x3A,
KARTS_AND_BIKES_ON_100CC = 0x3B,
SPRINTER_ALTERNATIVE = 0x3C

"ALTERNATIVE" means the non-standard way to unlock (for example, by playing X number of races). This is needed to know what specific message to display in the header.

This code allows you to customize the unlock screen with any character / vehicle / mode you want.
To access the unlock screen, simply go back to the License Selection screen and select a license (you can do this as many times as you want - it will always bring up the unlock screen).

First of all, you have to enable this code. This will make the game transition into one of the unlock screens. Note that you have to enter the correct screen for whatever you want the screen to display. So for example, if you want to see a vehicle unlock, you have to use the value 91.
The last two lines should prevent saving the license when after the unlock screen, in case you don't actually want to unlock anything in the savegame.
(PAL)
045eb920 386000XX
04854158 60000000
048541a4 60000000
048542f8 60000000
X Values:
- 90: Character screen
- 91: Vehicle screen
- 92: Mii screen
- 93: Mode screen

Then, fill out the following code. This will set a specific message for the header. The X values are the BMG ID for the header message you want to display. You can find a list of all BMG ID values in the link at the end of the post.
(PAL)
04854754 3800XXXX
04854758 900303e4
0485475C 4e800020

Now, depending on what you're wanting to unlock, enable the codes (and only the codes) under the section for what you want to unlock (with this, I mean that you musn't have a code under the "Unlocking a character" section and another one from the "Unlocking a vehicle" section at the same time).

=== Unlocking a character ===
(PAL)
048541c4 386000XX
04854a44 386000XX
- X Values: Character ID

Optionally, you can use this code to set a specific message to display for the character's name:
(PAL)
04854e94 3860YYYY
- Y Values: BMG ID

=== Unlocking a vehicle ===
(PAL)
048541d0 386000XX
04854a50 386000XX
04854c8c 38a000YY
04854ca0 38a000YY
- X Values: Vehicle ID
- Y Values: Character ID. This is needed for the game to know what vehicle color to load. Ensure that the character ID is for a character that can ride said vehicle.

Optionally, you can use this code to set a specific message to display for the vehicle's name:
(PAL)
04854ebc 3860XXXX
Optionally, you can use this code to set a specific vehicle class message to display (so for example, you can specifically force the "You've unlocked a small vehicle" message, even when unlocking a large vehicle).
(PAL)
04854ed0 386000YY
YY Values:
- 0: Small
- 1: Medium
- 2: Large

=== Unlocking a mode ===
(PAL)
048541c4 386000XX
X Values: See the unlock flags list below.

==== Unlock flags for modes ====
    STAR_CUP_50CC = 0,
    STAR_CUP_100CC = 01,
    STAR_CUP_150CC = 02,
    STAR_CUP_MIRROR = 03,
    BANANA_CUP_50CC = 04,
    BANANA_CUP_100CC = 05,
    BANANA_CUP_150CC = 06,
    BANANA_CUP_MIRROR = 07,
    LEAF_CUP_50CC = 08,
    LEAF_CUP_100CC = 09,
    LEAF_CUP_150CC = 0A,
    LEAF_CUP_MIRROR = 0B,
    LIGHTNING_CUP_50CC = 0C,
    LIGHTNING_CUP_100CC = 0D,
    LIGHTNING_CUP_150CC = 0E,
    LIGHTNING_CUP_MIRROR = 0F,
    MIRROR_MODE=10

==== BMG IDs (shows each ID on the left, alongside the message it represents on the right) ====
https://szs.wiimm.de/download/bmg/orig-E.txt

This code will set every record you make in Competition / Tournament as your best record. It will also make every record you make save its ghost to the save file (although it cannot be accessed in-game).

(PAL)
0485df1c 38600000

(USA)
0485b88c 38600000

(JPN)
0485d588 38600000

(KOR)
0484c2dc 38600000

While this code is enabled, Competition / Tournament records won't be able to be send to the rankings. Keep in mind that, if you connect to the rankings after disabling the code, the record will be uploaded as normal.

(PAL)
0466a6e8 480000ac

(USA)
04662f84 480000ac

(JPN)
04669d54 480000ac

(KOR)
04658a40 480000ac