Challenges completed by TailsFan28

Spinyes (there's a lot)

Lakitu Temple: Destroy all Spinys in Time Trial mode, in 150cc

MONEY MONEY MONEY

Airship DOOM: Collect all coins

The Lost Pipe

TurboSorbet II: Atteindre le tuyau au bout du circuit/ Reach the pipe at the bottom of the track in Time Trial mode

Second Way

TurboSorbet II: Trouver l’un des 3 raccourcis simples/ Find one of the 3 simple shortcuts in Time Trial mode

Jumper

Extreme Jump Beach: Complete the track

Glitcher

Extreme Jump Beach: Just do the glitch (you'll need it for this track's time trial challenges! 😉)

1-4The Lost Coin

Hopycat Falls: Collect 1 coin

Pik-less

Garden of Hope (OLD): Complete the track without touching any Red Pikmin, Blue Pikmin nor Yellow Pikmin

Drifting Donuts

Donut Plains Remix: Complete the track in Time Trial mode, in 150cc, without going backwards, by performing 5 Super Mini-Turbos

Slip and Slide Coin Grab

RMX Vanilla Lake : Collect all coins

River Coin Runners

RMX Riverside Park: Collect all coins in Time Trial mode, without making tricks

Faster Falls

Yoshi Falls Remix: Complete the track in Time Trial mode, in 150cc, without falling, while constantly accelerating

Peace In Nature

Mushroom Field: Complete the track in 150cc, in VS mode, without touching any Monty Mole, in medium mode

No teams, with 8 participants

Challenge 1-1

Mario Kart Circuit: Collect all coins in Time Trial mode, without using any item, with Mario

Bob-Omb Battlefield Challenge

Bob-Omb Battlefield: Finish 1st 3 times in a row

No teams, with 8 participants

Gettin' yo girl back

Fourside: Finish the game in the 1st position

Do you see a Waterfall? No? Then why are you waiting 3 minutes HERE?

Fourside: Survive more than 3:00

Finding Everdread...or rather, Everdead

Fourside: Collect all coins

Drinking some "Protein Drinks"

Fourside: Go to Jackie's Cafe.

I couldn't find an image of the Hint Man on WikiBound, so I used the next best thing.

Fourside: Go see the Hint Mr. Saturn.