Top rated challenges

I'm glad Moonview Highway replaced this in Wave 5

Mushroom Bridge : Collect all coins in Time Trial mode, without touching any Blue Car, Red Car nor bus

Patient Zero

Abandoned Laboratory : Reach the infected room in Time Trial mode, in 150cc, in less than 15s

Prison scolaire : Escape ! in VS mode, with 12 participants

Collect the coins

Bowser's Castle 3 : Collect all coins in Time Trial mode

Plaine donut 2 : faire 1 tour without touching the walls, with Yoshi

With 8 participants

Scattered on the Mud

Wario Stadium : Collect all coins in 150cc, without going backwards, with Wario, in less than 1:00

Wii Rainbow Road Master

Wii Rainbow Road : Complete the track in less than 2:16 in Time Trial mode, with MikeC1913

999cc Piranha Plant World

Mike’s Multicup’s: BOOSTER COURSE PASS (Wave 7) : Finish 1st 1 time in a row in VS mode, in 999cc, with Donkey-kong, with 100 participants

Find Dragon Boy's lost money!

Dragon Boy's Rest Rainbow : Collect all coins

The flower it's alone...

Jesy gardens : Orange flower what it's alone... in Time Trial mode

Yoshis Clandestins

Mega Mario Circuit : Go and visit the 3 little Yoshis who have hidden themselves in the circuit.

Collect the coins

8 Figure Circuit : Collect all coins in Time Trial mode, in less than 13s, with Mario

SNES Battle Arena 3

Battle Arena Fusion : Go inside the ice square

He won't like this.....

JPG Island : Destroy 1 Julek Statue in VS mode, with 1 participant, without falling

Egg Hunting

Tour Yoshi's Island : Destroy all Yoshi Eggs in Time Trial mode, with Yoshi, in less than 30s

Track Race

Rainbow Road : Complete the track in less than 5:00 in 150cc

In difficult mode

Find Easter Egg 23

Lakeside River : Destroy all Easter Egg

Find Easter Egg 13

Coconut Mall : Destroy all Easter Egg

Find Easter Egg 9

Wario Colosseum : Destroy all Easter Egg

10 Coins First!

Space Cheese Circuit : Collect 10 coins in Time Trial mode, in 200cc, without falling