Challenges completed by FoxgirlThing
Mettez 5/5
N64 Toad's Factory.GGradulin : Complete the track

Sapish Survival
ErHecks : Survive more than 1:00

"Venezuelan Internet" kills you
ErHecks : Finish the game in less than 10s

I can't believe this course wasn't made earlier...
ErHecks : It's legit in the title...

Déja vu
Running in the 90's : Finish in the 1st position in VS mode, without drifting, with 100 participants
In difficult mode, no teams

hit the pipe in 3 secs
race within one sec : find the pipe in Time Trial mode, in less than 3s

Backwards
MSP Wario Castle : Go backwards in Time Trial mode, in less than 30s

The Top
Mushroom Driftway : Complete the track in less than 1:05 in Time Trial mode

flipper waluigi68 : Finish in the 1st position without touching any bumper

Crygor's Lame Challenge
Dr. Crygor's Bad Circuit : Collect all coins in 100cc, in VS mode, in less than 40s

Useless bridge
CTGP-7 Concord Town : Take that useless shortcut

I try placing coins on mobile and it isn't great :P
Mario Kart 2 (O) - Rocky Mountain (Remake) : Collect all coins in Time Trial mode, without falling

Arbre
Mario Kart 1 (O) - Mario Circuit : Finish in the 1st position without touching any Koopapolis

C'est facile
Le flipper : Finish in the 1st position in 100cc

1-1 Racing Start
Luigi Kart Stadium : Finish in the 1st position in VS mode, in medium mode, in less than 2:00
With 8 participants

1-1
quartier de mario : Complete the track in Time Trial mode, in 150cc, in less than 2:30, with Daisy

Je veux faire le trajet normal !
Waluigi Pinball but you have to do the ultra shortcut : Je veux faire le trajet normal !

Du balai !
MSP Shy Guy Summit : Destroy all snowmen in Time Trial mode

Plateforme Maléfique
Bowser Castle DS : Atteindre la plateforme tournante in Time Trial mode, in less than 15s

Noob No More
Noob Circuit : Complete the track in less than 1:00 in Time Trial mode, in 150cc
