Here is the complete track list for Mario Kart WiiMix as of this version along with some notes where relevant. In total, there are 152 tracks (32 from the original game, 100 from other Mario Kart games, and 20 Custom Tracks). The courses are arranged in chronological order of Mario Kart games and custom tracks bringing up the rear.
Music for all of the retro tracks are their original music tracks unless otherwise listed.
SNES Mario Circuit 1 (ZPL)
This is the 3 lap version.
SNES Donut Plains 1 (Noia)
SNES Ghost Valley 1 (Zilly)
SNES Bowser Castle 1 (ChaosShadow23)
SNES Mario Circuit 2 (ZPL)
New for 1.1 (Replaces version by Wexos): I liked the visuals in this version more than the previous version included.
SNES Ghost Valley 2 (Nintendo)
SNES Choco Island 1 (Noia)
SNES Donut Plains 2 (Noia)
Yes, I know I could have called this Lightning Cup, but I only wanted to use sprites from the original course select screen.
SNES Bowser Castle 2 (ChaosShadow23)
I used the latest version, but it seems to have a glitch where the grates in the road are invisible.
SNES Mario Circuit 3 (Nintendo)
SNES Koopa Beach 1 (Noia)
SNES Choco Island 2 (Zilly)
SNES Vanilla Lake 1 (SquireTurnbolt)
SNES Bowser Castle 3 (ChaosShadow23)
SNES Mario Circuit 4 (NiAlBlack)
SNES Donut Plains 3 (Bear & ZPL)
SNES Koopa Beach 2 (Noia)
SNES Ghost Valley 3 (NintenYoshi)
SNES Vanilla Lake 2 (Likesorange)
SNES Rainbow Road (Bri)
N64 Luigi Raceway (ZPL & Skipper93653)
N64 Moo Moo Farm (Yoshidude4 & Ermelber)
This is the larger variant of this track.
Music is from Mario Kart 8
N64 Koopa Troopa Beach (Rex)
N64 Kalimari Desert (Sniki)
N64 Toad's Turnpike (NintenYoshi)
Music is from Mario Kart 8
N64 Frappe Snowland (NintenYoshi)
N64 Choco Mountain (TacoJosh)
N64 Mario Raceway (Nintendo)
N64 Wario Stadium (Zilly)
This was manually edited by me to reduce the lap count from 3 to 2. Personally I like tracks in the 2-3 minute sweet spot in length and the 2 lap count puts it nicely in that range.
Music is from Mario Kart 8.
N64 Sherbet Land (Nintendo)
N64 Royal Raceway (ZPL)
Music is from Mario Kart 8.
N64 Bowser's Castle (Nintendo)
N64 DK's Jungle Parkway (Nintendo)
N64 Yoshi Valley (ZPL)
Music is from Mario Kart 8.
Updated for 1.1: now using track version 1.11
N64 Banshee Boardwalk (Zilla)
N64 Rainbow Road (cpfusion)
New for 1.1 (Replaces version by Skipper): I wasn't a fan of how the previous version sought to fix Rainbow Road's length problem by just placing ramps and Thwomps here and there. This version largely replicates what was done in Mario Kart 8, but adds shortcuts and most importantly makes it two laps instead of the one.
Music is from Mario Kart 8.
GBA Peach Circuit (ZPL)
Music is from Mario Kart 8
GBA Shy Guy Beach (Nintendo)
GBA Riverside Park (ChaosShadow23)
Worth noting this version may not stick in here too long as I have some preliminary plans to remake this in a more Mario Kart 8-ish style remake.
GBA Bowser Castle 1 (Bri)
The glider ramp has killed me on more than one occasion by landing me directly between two of the islands at the end, but I stuck with this version for now because it's the correct number of laps and visually looks the best to me.
GBA Mario Circuit (MysterE99)
Music is from Mario Kart 8
GBA Boo Lake (ChaosShadow23)
I know there's a well liked complete overhaul of this track, but while it does look nice I honestly feel like between its complete change in visuals and major layout changes that it goes a bit too far for me to use it here. I honestly may consider adding it one day as a custom track though and call it something like GBA Boo Lake X.
Music is a remix by TheNobleDemon.
GBA Cheese Land (ZPL)
Music is from Mario Kart 8
GBA Bowser Castle 2 (ChaosShadow23)
GBA Luigi Circuit (Zilly)
Music is from Mario Kart 8
GBA Sky Garden (Squadaloo)
What was I going to do, not use my own here? :P
Music is a remix by Panman Music.
GBA Cheep-Cheep Island (ZPL)
Music is from Mario Kart Tour
GBA Sunset Wilds (Flint)
Music is from Mario Kart Tour
GBA Snow Land (cpfusion)
GBA Ribbon Road (Gabriela)
Music is from Mario Kart 8.
GBA Yoshi Desert (ZPL)
GBA Bowser Castle 3 (Nintendo)
GBA Lakeside Park (Flint & Hman6516)
GBA Broken Pier (xBlue98)
Music is a remix by TheNobleDemon.
Updated for 1.1: now using track version 1.03.8
GBA Bowser Castle 4 (ChaosShadow23)
GBA Rainbow Road (ChaosShadow23)
Much like Boo Lake, I know there's a well liked major overhaul version of this track. However, I feel it has serious pacing issues and the main thing I associate with GBA Rainbow Road is its relentless pacing, especially in the ending of the course with boosters everywhere, so I opted to use a more traditional remake instead.
The music is a remix by Panman Music.
GCN Luigi Circuit (Tock)
GCN Peach Beach (Nintendo)
GCN Baby Park (Bruh de la Boi)
Music is from Mario Kart 8.
GCN Dry Dry Desert (ZPL)
GCN Mushroom Bridge (Tock)
GCN Mario Circuit (Nintendo)
GCN Daisy Cruiser (FunkeyDude15, Riidefi, & Cotni)
GCN Waluigi Stadium (Nintendo)
GCN Sherbet Land (Tock)
Music is from Mario Kart 8.
GCN Yoshi Circuit (Tock)
Music is from Mario Kart 8.
GCN Mushroom City (Riidefi & Tock)
GCN DK Mountain (Nintendo)
GCN Wario Colosseum (MKDasher)
I chose this version because I ended up running into an issue where I fell off of the other version and respawned and somehow missed a key checkpoint, resulting in a guaranteed loss.
GCN Dino Dino Jungle (Tock)
GCN Bowser's Castle (Tock & Wiimm)
GCN Rainbow Road (Riidefi & Tock)
Music is a remix by Panman Music.
DS Figure-8 Circuit (Quajeek99 & Sniki)
DS Yoshi Falls (Nintendo)
DS Cheep Cheep Beach (Jasper, ZPL, & GoldenRS)
Music is from Mario Kart 8.
DS Luigi's Mansion (Tock)
DS Desert Hills (Nintendo)
DS Delfino Square (Nintendo)
DS Waluigi Pinball (Sniki)
DS Shroom Ridge (Sniki)
Music is a remix by Panman Music.
DS DK Pass (ZPL)
DS Tick-Tock Clock (ZPL)
New for 1.1 (Replaces version by Tock): This version looks more in line with the updated look from Mario Kart 8.
Music is from Mario Kart 8.
DS Mario Circuit (ZPL)
DS Airship Fortress (Sniki)
DS Wario Stadium (ZPL)
DS Peach Gardens (Nintendo)
DS Bowser Castle (Sniki)
DS Rainbow Road (maczkopeti)
Yes, I know the loops are janky as Hell, but in my mind it's the single defining feature of the course and removing them would basically defeat the purpose of remaking the track in the first place, so yeah, this version's got loops.
These are all just the Nintendo versions so I won't bother listing every track here.
3DS Toad Circuit (SKmaric)
I picked this version because it's the only one that didn't turn all of the coins into item boxes on the last turn.
3DS Daisy Hills (Atlas)
3DS Cheep Cheep Lagoon (Tock)
3DS Shy Guy Bazaar (Atlas)
3DS Wuhu Loop (FunkyDudge15, Riidefi, & Zachruff)
3DS Mario Circuit (ZPL & Bri)
3DS Music Park (Atlas)
3DS Rock Rock Mountain (MrKoeikoei & Zilly)
3DS Piranha Plant Slide (Atlas)
3DS Wario Shipyard (Atlas)
3DS Neo Bowser City (Atlas)
I know this version has an issue where you can blind jump into the abyss at the end, but I prefer it because the other currently available version adds unnecessary Goombas.
3DS Maka Wuhu (FunkyDude15 & Wexos)
3DS DK Jungle (Skipper93653)
3DS Rosalina's Ice World (MysterE99 & Skipper93653)
3DS Bowser's Castle (Wexos & Atlas)
3DS Rainbow Road (Bladestorm227)
Not a big fan of how this one handles the glider sections, but the other ones either seemed off to me or had weird changes like changing the mushrooms into cookies.
Wii U Thwomp Ruins (SquireTurnbolt)
I know this port isn't quite up to Wii standards in the poly count department, but it plays fine.
Wii U Dolphin Shoals (MrFluffy)
Wii U Electrodrome (SquireTurnbolt)
New for V1.1 (Replaces Wii U Sweet Sweet Canyon): I had previously noted the version of Wii U Sweet Sweet Canyon previously used was not up to par with the other three Wii U tracks but was needed to fill the entire cup. This version of Electrodrome certainly is, and as such I've swapped it in instead.
Wii U Rainbow Road (Squadaloo)
MKT RMX Mario Circuit 1 (Noia)
MKT RMX Choco Island 1 (Noia)
MKT RMX Rainbow Road 1 (Noia & Toxic Prime)
MKT Sydney Sprint (Bruh de la Boi)
Currently Sydney Sprint 2 isn't included, but it along with RMX Vanilla Lake 1 will be included once there's two more Tour tracks to fill out a cup.
MKT RMX Ghost Valley 1 (Bruh de la Boi)
MKT N64 Kalimari Desert 2 (Bruh de la Boi & Krummers)
Honestly it may seem like overkill to have this in here when Kalimari Desert is plenty fine, but I honestly find this course so bizarre that it exists in official capacity that I had to include it.
MKT RMX Rainbow Road 2 (Bruh de la Boi)
MKT Merry Mountain (Noia & NintenYoshi)
Boshi Skatepark (Luke Chandler)
Music is GCN Waluigi Stadium
Camp Kartigan (MrFluffy)
Music is Wii Moo Moo Meadows
Coin Heaven (TacoJosh)
Music is "Above the Clouds" from Super Mario Odyssey.
Crystal Plains (Sniki)
Music is Wii Moo Moo Meadows
DKR Frosty Village (Squadaloo)
Music is "Frosty Village" from Diddy Kong Racing...and so is the track, for that matter, albeit remade from the ground up for Mario Kart Wii.
Emerald Coast (Squadaloo)
New for V1.1 (Cool Castle Canyon by Sniki removed to make room): Since this is my pack, I will generally include all of my tracks in it. I also want to limit the number of custom tracks in it. While I'm not opposed to adding more custom tracks in the future, right now I'm unsure of what other three custom tracks I would include in order to fill out a brand new custom cup, so I needed to remove one track to fit mine in, and Cool Castle Canyon was the weakest one here to me. It may reappear in a future version if I decide to add more custom track cups.
Music is "Azure Blue World" and "Windy and Ripply" from Sonic Adventure.
Frantic Funyard (rusoX & Sniki)
Music is Wii Maple Treeway
Honeybee Hideout (TacoJosh)
Music is Wii Maple Treeway
Luncheon Tour (Luke Chandler)
Music is "Mount Volbono" from Super Mario Odyssey sped up by 10% (and another 15% on top of that for the final lap)
Musical Cliff (Noia)
Music is "Fluffy Bluff Galaxy" from Super Mario Galaxy 2
New Moon Manor (Sniki)
Music is Wii U Twisted Mansion
Orbital Outpost (TacoJosh)
Music is "Darkmoon Caverns" from Diddy Kong Racing
Pianta Shore (NateFox)
Music is GCN Peach Beach
Quaking Mad Cliffs (MrFluffy)
Music is "Rocket Barrel 1 (Short)" from Donkey Kong Country Returns. I don't know why, it just felt appropriate to me.
Sandstone Cliffs (Citrus)
Music is Wii Mushroom Gorge
Shadow Woods (Sniki)
Music is "Moogle Forest" from Chocobo Racing since the layout was taken from it.
Spectral Station (MrFluffy)
Music is "Shifty Boo Mansion" from Super Mario 3D World
Super Bell Circuit (Squadaloo)
Music is "The Credits Roll" from Super Mario 3D World (I figured its tempo was more appropriate for a race than Super Bell Hill's song)
Super Marine World (MrFluffy)
Music is N64 Sherbet Land
This is the best Custom Track
Vile Isle (Citrus)
Music is N64 Bowser's Castle