Last published challenges
Cloud 9
Sky-High Speedway : Complete the track in 9th place

How can you fall? You can float, dummy!
Sky-High Speedway : Finish in the 1st position with King Boo, without falling

Beat the Staff Ghost
Sky-High Speedway : Complete the track in less than 1:04 in Time Trial mode

No showing off allowed
Urchin Beach : Complete the track without making tricks, with Toad

Snaking king!
Snaking practice : Complete the track in less than 54s in Time Trial mode, with Daisy

Snaking beginner
Snaking practice : Complete the track in less than 1:00 in Time Trial mode, with Daisy, without using any item

N. Tropy's Challenge
Complete the track in less than 2:15 in Time Trial mode

Obligatory Challenge made because Wario has bad Handling
Fort Chasm : Complete the track with Wario, without drifting

Dead on the outside AND on the inside
Fort Chasm : Complete the track in 8th place, with Dry Bones, in easy mode

Being Punished for Appreciating the Nintendo Switch Online Subscription Thingy
Bathaniel Nandy : Survive more than 1:00 without touching item boxes, without losing any balloons
With 8 participants, no teams

No Man's Snowman
Cool, Cool Glacier : Hit the Snowman on the Left (or Right depending on which way you look at it)

"Welcome to Mario Kart" or something along those lines
Cool, Cool Glacier : Complete the track with 64 participants

Beat the Staff Ghost
Dark, Dank Underground : Complete the track in less than 1:30 in Time Trial mode

The Monster
Dark, Dank Underground : Approach the Fire-Breathing Beast

Beat the Staff Ghost
Cool, Cool Glacier : Complete the track in less than 48s in Time Trial mode

Shy Pirates
Urchin Beach : Complete the track with Shy Guy

Driving a Boat
Urchin Beach : Get on top of the Boat's cabin.

I got a Funky feeling...
Fort Chasm : Finish in the 1st position in VS mode, with Funky-kong, in medium mode, without falling

Beat the Staff Ghost
Fort Chasm : Complete the track in less than 57s

^^'
Biome Bypass 1 : Complete the track in less than 2:46 in Time Trial mode, with Rosalina
