Top rated challenges

Ooooh, BANANA!

Hijinx Jungle : Reach the Lone Pipe, with Diddy-kong

Challenge 1

Mushroom Bridge : Exit the first tunnel in Time Trial mode, with Mario

Tho it does not tilt heres this

Tilt A Kart : Hit 1 opponent with Mario, without drifting

No teams, with 8 participants

Eating rICE

Icicle Frostland : Complete the track with 10 participants, in 2nd place

Rolling some dICE

Icicle Frostland : Finish in the 1st position in VS mode, with Waluigi, without drifting, without using any item, without making tricks

fICEty

Icicle Frostland : Finish in the 1st position in VS mode, with 20 participants, in medium mode, with Bowser Jr

Mario On Top

Mario Circuit : Finish in the 1st position in VS mode, with Mario

In difficult mode

Time Trial Challenge 4

MKCD: Chaos Castle 1 : Complete the track in less than 1:34 in Time Trial mode

Drifting

First circuit : Finish in the 1st position without drifting

Crystalized Time Trial

DK's Crystal Caves : Complete the track in less than 1:55 in Time Trial mode

Time Trial Challenge 1

MKCD: Mario Circuit 1 : Complete the track in less than 1:04 in Time Trial mode

Team-Up Not Required

Nimbus Hills : Finish in the 1st position

No teams, in difficult mode

I'm a goofy goober yeah

Sand Mountain : Complete the track in 100th place, with 100 participants

Yoshi's Race Around the Fort

Reznor Fortress : Finish in the 1st position with Yoshi, with 4 participants

They're not cannons, but they'll do.

Crumbly Battle Canyon : Touch a pipe.

So ein mist!

Crumbly Battle Canyon : Finish in the 1st position in VS mode, with Wario, without drifting, with 9 participants

Mr.Canon

L'arrène GLAGLA : Trouver le canon by losing at most 2 balloons

Oasis Hunt

MKCD: Desert Hills : Find 13 oasis's in Time Trial mode, by falling at most 13 times

Pacifist on Ice

MKCD: Iced Country 1 : Complete the track without using any item

In difficult mode

Stunt-Less Victory

MKCD: Mario Circuit 2 : Complete the track without making tricks