Drift Mode Modifier/Transmission Switch [Anarion]

NOTE: Outdated by Bully's version.

Works both online and offline. Allows you to switch transmissions in between races.

NTSC-U
2834XXXX YYYYZZZZ
C251A964 00000002
39800001 99830051
89830050 00000000
CC000000 00000000
C251A964 00000002
39800000 99830051
89830050 00000000
E0000000 80008000

PAL
2834XXXX YYYYZZZZ
C251EDD8 00000002
39800001 99830051
89830050 00000000
CC000000 00000000
C251EDD8 00000002
39800000 99830051
89830050 00000000
E0000000 80008000

NTSC-J
2834XXXX YYYYZZZZ
C251E758 00000002
39800001 99830051
89830050 00000000
CC000000 00000000
C251E758 00000002
39800000 99830051
89830050 00000000
E0000000 80008000

NTSC-K
2833XXXX YYYYZZZZ
C250CDFC 00000002
39800001 99830051
89830050 00000000
CC000000 00000000
C250CDFC 00000002
39800000 99830051
89830050 00000000
E0000000 80008000

Code created by: Anarion

Instant Transmission Switch [Anarion]

NOTE: Only works consistently on Dolphin Emulator.

Works for both online and offline. You can change transmissions/drift-modes live in race.  The race/battle starts with a default state of being in Manual. So if you choose Auto and the race/battle starts, you will start off as Manual still until you hit your button activator/deactivator.

NTSC-U
2834XXXX YYYYZZZZ
C258FDC0 00000003
7C8C2378 80840014
60840010 908C0014
60000000 00000000
CC000000 00000000
C258FDC0 00000003
7C8C2378 80840014
54840734 908C0014
60000000 00000000
E0000000 80008000

PAL
2834XXXX YYYYZZZZ
C25965E4 00000003
7C8C2378 80840014
60840010 908C0014
60000000 00000000
CC000000 00000000
C25965E4 00000003
7C8C2378 80840014
54840734 908C0014
60000000 00000000
E0000000 80008000

NTSC-J
2834XXXX YYYYZZZZ
C2595F64 00000003
7C8C2378 80840014
60840010 908C0014
60000000 00000000
CC000000 00000000
C2595F64 00000003
7C8C2378 80840014
54840734 908C0014
60000000 00000000
E0000000 80008000

NTSC-K
2833XXXX YYYYZZZZ
C258463C 00000003
7C8C2378 80840014
60840010 908C0014
60000000 00000000
CC000000 00000000
C258463C 00000003
7C8C2378 80840014
54840734 908C0014
60000000 00000000
E0000000 80008000

Sources:
#Set Auto
mr r12, r4
lwz r4, 0x0014 (r4)
ori r4, r4, 0x0010 #Turn on Bit, auto is enabled
stw r4, 0x0014 (r12)

#Set Manual
mr r12, r4
lwz r4, 0x0014 (r4)
rlwinm r4, r4, 0, 28, 26 #Turn off Bit, manual is enabled
stw r4, 0x0014 (r12)

Code creator: Anarion
Code credits: JoshuaMK (figured out bit flips, added ability for code to also work online)

Always Win Track Vote (Host Only) [Star]

This code will specify a player slot to always win the track vote. It will only work if you are the host of the room.

(NTSC-U)
C2659EE4 00000002
3880000X 989F003E
60000000 00000000

(PAL)
C2661E20 00000002
3880000X 989F003E
60000000 00000000

(NTSC-J)
C266148C 00000002
3880000X 989F003E
60000000 00000000

(NTSC-K)
C2650138 00000002
3880000X 989F003E
60000000 00000000

[X Values]
0 = 1st Player Slot (Always the Host in a Friend Room)
1 = 2nd Player Slot
2 = 3rd Player Slot
3 = 4th Player Slot
4 = 5th Player Slot
5 = 6th Player Slot
6 = 7th Player Slot
7 = 8th Player Slot
8 = 9th Player Slot
9 = 10th Player Slot
A = 11th Player Slot
B = 12th Player Slot

Code Creator: Star

Key Remapper (Wii Chuck) [Bully]

Please note that unlike the GCN Key Remapper, this code doesn't swap button functions. For example, if you use the 1 Button as your Item Usage button, the original Item Usage Button (Z) is disabled instead of using the function of the 1 Button.

Please also note that the code ONLY effects live racing. Everything else, the control functions/keys remain the same.

Perfect Replace Item with Shared Item [Star]

This code will replace an item that you receive from the roulette, to a random legitimate one. It is undetectable.

(NTSC-U)
# Single Item
2834XXXX YYYYZZZZ
C27AB704 00000004
2C0300RR 40A20014
3D80807A 618CB6E4
7D8803A6 4E800020
90770020 00000000
E0000000 00000000
2834XXXX YYYYZZZZ
047AB704 90770020
E0000000 80008000

# Multiple Items
2834XXXX YYYYZZZZ
C27AB704 00000005
2C0300RR 4182000C
2C0300RR 40A20014
3D80807A 618CB6E4
7D8803A6 4E800020
90770020 00000000
E0000000 00000000
2834XXXX YYYYZZZZ
047AB704 90770020
E0000000 80008000

(PAL)
# Single Item
2834XXXX YYYYZZZZ
C27BA164 00000004
2C0300RR 40A20014
3D80807B 618CA144
7D8803A6 4E800020
90770020 00000000
E0000000 00000000
2834XXXX YYYYZZZZ
047BA164 90770020
E0000000 80008000

# Multiple Items
2834XXXX YYYYZZZZ
C27BA164 00000005
2C0300RR 4182000C
2C0300RR 40A20014
3D80807B 618CA144
7D8803A6 4E800020
90770020 00000000
E0000000 00000000
2834XXXX YYYYZZZZ
047BA164 90770020
E0000000 80008000

(NTSC-J)
# Single Item
2834XXXX YYYYZZZZ
C27B97D0 00000004
2C0300RR 40A20014
3D80807B 618C97B0
7D8803A6 4E800020
90770020 00000000
E0000000 00000000
2834XXXX YYYYZZZZ
047B97D0 90770020
E0000000 80008000

# Multiple Items
2834XXXX YYYYZZZZ
C27B97D0 00000005
2C0300RR 4182000C
2C0300RR 40A20014
3D80807B 618C97B0
7D8803A6 4E800020
90770020 00000000
E0000000 00000000
2834XXXX YYYYZZZZ
047B97D0 90770020
E0000000 80008000

(NTSC-K)
# Single Item
2833XXXX YYYYZZZZ
C27A8524 00000004
2C0300RR 40A20014
3D80807A 618C8504
7D8803A6 4E800020
90770020 00000000
E0000000 00000000
2833XXXX YYYYZZZZ
047A8524 90770020
E0000000 80008000

# Multiple Items
2833XXXX YYYYZZZZ
C27A8524 00000005
2C0300RR 4182000C
2C0300RR 40A20014
3D80807A 618C8504
7D8803A6 4E800020
90770020 00000000
E0000000 00000000
2833XXXX YYYYZZZZ
047A8524 90770020
E0000000 80008000

[RR Values]
00 = Green Shell
01 = Red Shell
02 = Banana
03 = Fake Item Box
04 = Mushroom
05 = Triple Mushrooms
06 = Bob-omb
07 = Blue Shell
08 = Lightning
09 = Star
0A = Golden Mushroom
0B = Mega Mushroom
0C = Blooper
0D = POW Block
0E = Thunder Cloud
0F = Bullet Bill
10 = Triple Green Shells
11 = Triple Red Shells
12 = Triple Bananas
14 = No Item Available (Mushroom)

Code Creator: Star
Code Credits: Guru

Anti Trailed Item Spy [Star]

This code will send false information about the item you are trailing to other players.

(NTSC-U)
C265FCC8 00000002
3B8000XX 9B830002
60000000 00000000

(PAL)
C265F040 00000002
3B8000XX 9B830002
60000000 00000000

(NTSC-J)
C265E6AC 00000002
3B8000XX 9B830002
60000000 00000000

(NTSC-K)
C264D358 00000002
3B8000XX 9B830002
60000000 00000000

[XX Values]
00 = Green Shell
01 = Red Shell
02 = Banana
03 = Fake Item Box
04 = Mushroom
05 = Triple Mushrooms
06 = Bob-omb
07 = Blue Shell
08 = Lightning
09 = Star
0A = Golden Mushroom
0B = Mega Mushroom
0C = Blooper
0D = POW Block
0E = Thunder Cloud
0F = Bullet Bill
10 = Triple Green Shells
11 = Triple Red Shells
12 = Triple Bananas
14 = No Item

Code Creator: Star

AutoPilot [mdmwii]

NOTE: Outdated by MarioBOT which can do perfect start boosts and preform wheelies.

With this code, the game will drive the character for you. Only works for GCN.

NTSC-U
C2728AE8 00000004
3E408000 82521550
925D0150 925D0178
38000001 981D0163
881D0163 00000000
C251BEA0 00000002
3E408000 93B21550
60000000 00000000
0451A990 60000000

PAL
C2732CA0 00000004
3E408000 82521550
925D0150 925D0178
38000001 981D0163
881D0163 00000000
C2520314 00000002
3E408000 93B21550
60000000 00000000
0451EE04 60000000

NTSC-J
C273230C 00000004
3E408000 82521550
925D0150 925D0178
38000001 981D0163
881D0163 00000000
C251FC94 00000002
3E408000 93B21550
60000000 00000000
0451E784 60000000

NTSC-K
C2721048 00000004
3E408000 82521550
925D0150 925D0178
38000001 981D0163
881D0163 00000000
C250E338 00000002
3E408000 93B21550
60000000 00000000
0450CE28 60000000

Code created by: mdmwii

Stalking -Online- [Bully]

Outdated by mdmwii's version.

Code allows you to hover over selected opponents to 'stalk' them. Online use only.

NTSC-U
C0000000 0000000B
3D808034 A18CXXXX
718CWWWW 41820048
3D808165 816C0000
2C0B0000 41820038
816C0008 396B0001
814C0000 7C0A5800
41800008 48000008
39600000 814C0004
7C0A5800 4082000C
396B0001 4BFFFFDC
916C0008 4E800020
2834XXXX YYYYWWWW
C250C930 00000019
2C18000B 41810024
3D808165 816C0000
7C0BC000 41810008
930C0000 2C1B0000
40820008 930C0004
816C0008 3D808166
7C0BC000 4082003C
C2840000 C2A40004
C2C40008 C2E40088
C304008C C3240090
C3440094 D28C0000
D2AC0004 D2CC0008
D2EC000C D30C0010
D32C0014 D34C0018
2C1B0000 4082004C
C28C0000 C2AC0004
C2CC0008 C2EC000C
C30C0010 C32C0014
C34C0018 3D604410
916C001C C36C001C
EEB5D82A D2840000
D2A40004 D2C40008
D2E40088 D304008C
D3240090 D3440094
EC411028 00000000
E0000000 00000000
2834XXXX YYYYZZZZ
0450C930 EC411028
E0000000 80008000

PAL
C0000000 0000000B
3D80rrrr A18CXXXX
718CWWWW 41820048
3D808165 816C0000
2C0B0000 41820038
816C0008 396B0001
814C0000 7C0A5800
41800008 48000008
39600000 814C0004
7C0A5800 4082000C
396B0001 4BFFFFDC
916C0008 4E800020
2834XXXX YYYYWWWW
C2510DA4 00000019
2C18000B 41810024
3D808165 816C0000
7C0BC000 41810008
930C0000 2C1B0000
40820008 930C0004
816C0008 3D808166
7C0BC000 4082003C
C2840000 C2A40004
C2C40008 C2E40088
C304008C C3240090
C3440094 D28C0000
D2AC0004 D2CC0008
D2EC000C D30C0010
D32C0014 D34C0018
2C1B0000 4082004C
C28C0000 C2AC0004
C2CC0008 C2EC000C
C30C0010 C32C0014
C34C0018 3D604410
916C001C C36C001C
EEB5D82A D2840000
D2A40004 D2C40008
D2E40088 D304008C
D3240090 D3440094
EC411028 00000000
E0000000 00000000
2834XXXX YYYYZZZZ
04510DA4 EC411028
E0000000 80008000

NTSC-J
C0000000 0000000B
3D808034 A18CXXXX
718CWWWW 41820048
3D808165 816C0000
2C0B0000 41820038
816C0008 396B0001
814C0000 7C0A5800
41800008 48000008
39600000 814C0004
7C0A5800 4082000C
396B0001 4BFFFFDC
916C0008 4E800020
2834XXXX YYYYWWWW
C2510724 00000019
2C18000B 41810024
3D808165 816C0000
7C0BC000 41810008
930C0000 2C1B0000
40820008 930C0004
816C0008 3D808166
7C0BC000 4082003C
C2840000 C2A40004
C2C40008 C2E40088
C304008C C3240090
C3440094 D28C0000
D2AC0004 D2CC0008
D2EC000C D30C0010
D32C0014 D34C0018
2C1B0000 4082004C
C28C0000 C2AC0004
C2CC0008 C2EC000C
C30C0010 C32C0014
C34C0018 3D604410
916C001C C36C001C
EEB5D82A D2840000
D2A40004 D2C40008
D2E40088 D304008C
D3240090 D3440094
EC411028 00000000
E0000000 00000000
2834XXXX YYYYZZZZ
04510724 EC411028
E0000000 80008000

NTSC-K
C0000000 0000000B
3D808033 A18CXXXX
718CWWWW 41820048
3D808165 816C0000
2C0B0000 41820038
816C0008 396B0001
814C0000 7C0A5800
41800008 48000008
39600000 814C0004
7C0A5800 4082000C
396B0001 4BFFFFDC
916C0008 4E800020
2833XXXX YYYYWWWW
C24FEDC4 00000019
2C18000B 41810024
3D808165 816C0000
7C0BC000 41810008
930C0000 2C1B0000
40820008 930C0004
816C0008 3D808166
7C0BC000 4082003C
C2840000 C2A40004
C2C40008 C2E40088
C304008C C3240090
C3440094 D28C0000
D2AC0004 D2CC0008
D2EC000C D30C0010
D32C0014 D34C0018
2C1B0000 4082004C
C28C0000 C2AC0004
C2CC0008 C2EC000C
C30C0010 C32C0014
C34C0018 3D604410
916C001C C36C001C
EEB5D82A D2840000
D2A40004 D2C40008
D2E40088 D304008C
D3240090 D3440094
EC411028 00000000
E0000000 00000000
2833XXXX YYYYZZZZ
044FEDC4 EC411028
E0000000 80008000

rrrr Values (for PAL code only):
8034 = Wheel, Chuck, Classic
8035 = GCN

XXXX = Controller Address
YYYY are like any other YYYY values on other codes
WWWW = Button to activate stalking and switch victims
ZZZZ = Button to deactivate stalking

Code created by: Bully

USB Gecko Grab All Item Locations Offline [Bully]

You need a USB Gecko or Aldelaro5's RAM Viewer (for Dolphin)!

Offline use only. Once the race begins, view memory address 81700040. The following 12 32-bit strings of data hold the memory addresses to each item's location (wait until countdown as started, the memory addresses change slightly right before countdown).

NTSC-U
C2796800 00000004
1D910004 3D8C8170
3BBD0044 93AC0040
3BBDFFBC 807D0160
60000000 00000000

PAL
C279F80C 00000004
1D910004 3D8C8170
3BBD0044 93AC0040
3BBDFFBC 807D0160
60000000 00000000

NTSC-J
C279EE78 00000004
1D910004 3D8C8170
3BBD0044 93AC0040
3BBDFFBC 807D0160
60000000 00000000

NTSC-K
C278DBCC 00000004
1D910004 3D8C8170
3BBD0044 93AC0040
3BBDFFBC 807D0160
60000000 00000000

Code created by: Bully

USB Gecko Grab Everyone's Location Offline [Bully]

You need a USB Gecko or Aldelaro5's RAM Viewer (for Dolphin)!

Offline use only. Once the race begins, view memory address 81700000. The following 12 32-bit strings of data hold the memory addresses to each player's coordinates (wait until countdown as started, the memory addresses change slightly right before countdown). You can change these coordinates via RAM to teleport the selected character live in race.

NTSC-U
C250C92C 00000004
2C18FFFF 40810010
1DF80004 3DEF8170
908F0000 39200000
60000000 00000000 

PAL
C2510DA0 00000004
2C18FFFF 40810010
1DF80004 3DEF8170
908F0000 39200000
60000000 00000000

NTSC-J
C2510720 00000004
2C18FFFF 40810010
1DF80004 3DEF8170
908F0000 39200000
60000000 00000000

NTSC-K
C24FEDC0 00000004
2C18FFFF 40810010
1DF80004 3DEF8170
908F0000 39200000
60000000 00000000

Code created by: Bully