sorry if you gotta read for 15 hours.

Im happy seeing people like wii u mariokart tracks, those are my only bois untill Nintendo switch 2s coming out (yes i don't have switch but i do have wii u)

I mean, I had a 3DS, but my childhood didn't start until the Wii U. Why? I had 5 games (counting Face Raiders) on the 3DS. Those games were Paper Mario: Sticker Star, Luigi's Mansion Dark Moon, Mario Kart 7, and Super Mario 3D Land. I only call my Wii U days the golden days and my childhood cause I owned a Red Box copy of Mario Kart 8 and Super Mario Maker 1. A Red Box copy of Mario games on the Wii U meant it was one of the later prints of Mario games. They used blue earlier. My top 10 tracks included Wii U, and the updated list is even better.
1: 3DS Toad Circuit
2: NS Piranha Plant Cove
3: Wii U Mario Kart Stadium
4: NS2 Mario Bros. Circuit
5: 3DS Rainbow Road
6: DS Waluigi Pinball
7: Wii U Big Blue
8: 3DS Rock Rock Mountain
9: 3DS Wuhu Loop
10: NS Sky High Sundae

UPDATE
Tracks that say "Wii U(?)" are wrong. Their abbreviation will be NS, so for example, NS Ninja Hideaway. Games after Mario Kart 9 will label MK9's tracks as NS2, so NS2 Mario Bros. Circuit.

FUN FACT: if the Mario Bros. are separated, then a singular plumber is called a Mario Bro. or a Bro.
Source: Mario & Luigi: Brothership

BABY PARK WITH 24 PLAYERS IS GOING TO BE HELL

What about RMX Baby Park? I'm thinking it'll be shaped a little bit like Lemuria Hub from Splatoon 3. And, it's in a theme park on an island about 13 nautical miles away from Yoshi Circuit.

you're also not talking about the Mario & Luigi tracks? Like Slippenglide Speedway?

New and improved flower cup:
BeanBean Kingdom (Superstar Saga)
Mount Pajamaja (Dream team)
Concordia Cruise (Brothership)
4th race ideas:
Heatfreeze circuit
Teehee Valley
Pi'illo Pass
Shipshape Speedway
Dream World Dash

What about Desolatt Drive?

Haven't considered that one. there's also Rumbla Raceway.

or Conductor* Circuit
*as in Conductor Island

CHANGE MADE

RMX GCN Rainbow Road has been changed to FZ99 Big Blue II

New addition

and toad's factory is overlooked again

Dude, I never played MKWii. I grew up on MK7. If I didn't include it, I probably don't know it. I will put it in the next cup I make.

quick summary on toads factory: the best song in all of gaming

Wouldn't that go to Singapore Speedway?

also, here. Happy?

yes

New addition

Update version 3.1.0

Added the first underwater Battle Stadium, Cheep Cheep Chamber
Re-added NS Urchin Underpass
Added NS2 Battle Course 6
Added NS2 Dreamworld Dome
Added NS2 Offandon Thunderdome

Splatoon fans are gonna hate me, but...
Update version 3.0.0
NS Urchin Underpass has been changed to NS Lunar Colony.

Hey, it's not my fault I fricking love the map! It has a soothing song. Good for my Autism. It's calming, and is the perfect stage for beginners. No map is gonna replace Lunar Colony.