Top rated challenges
Challenger
Mario Kart BN Nitro's : Get 1 gold cup in Grand Prix mode
Medium Master
Mario Kart BN Nitro's : Get all gold cups in Grand Prix mode
Difficult Ghost Valley 4 : Complete the track in less than 1:15 in 200cc, in Time Trial mode
Easy Don't Fall Off the Rainbow Road
Rainbow Road : Complete the track in 200cc, without falling
Easy Coin Calabash
Snowdrift Forest : Collect all coins in Time Trial mode, in less than 1:30
Easy Hidden Coins In The Town
Tot Town : Collect 7 coins in Time Trial mode, in less than 1:10
Easy 8 Coins Challenge
DKR Spaceport Alpha : Collect all coins in Time Trial mode, in 150cc, in less than 38s
Medium Fiery-Flame Dodge
Excitebike Arena : Complete the track in less than 1:00 in Time Trial mode, in 150cc, without touching any fire triplet
Medium 200cc Time to Beat
Sunset Wilds : Complete the track in less than 1:15 in Time Trial mode, in 200cc
Medium 150cc Time to Beat
Sunset Wilds : Complete the track in less than 1:40 in Time Trial mode, in 150cc
Easy Victorieux
Tsouky Kart : Finish 1st 10 times in a row in VS mode, in 150cc, with 12 participants, in easy mode, with Daisy, in different circuits
No teams
Medium Uranium Endure
Toxicity Powerplant : Finish in the 1st position in VS mode, in 150cc, without drifting, in impossible mode, with Proudster, without touching any Bomb, UraniumRod, ERR404 nor oil spill, without making tricks, while in rear view, while constantly accelerating, with inverted controls
With 8 participants, no teams
Impossible Bagging Simulator
Goomba Canyon : Complete a lap in VS mode, in 150cc, with 1 participant, in less than 22s
Medium Monty Attack Challenge
Monty Mole Route : Finish in the 1st position in VS mode, in 150cc
In difficult mode, with 8 participants, no teams
Medium If the brakes are broken...
Shy guy's highway : Complete the track in less than 1:25 in Time Trial mode, in 150cc, with Waluigi, while constantly accelerating
Medium The Neo Cup Tour: Battle Marathon
The Neo Cup Tour (Battle Arenas) : Finish 1st 8 times in a row in 150cc, in different arenas
No teams, with 8 participants
Extreme The Neo Cup Tour: True Tour
The Neo Cup Tour : Finish 1st 24 times in a row in VS mode, in 150cc, in different circuits
In difficult mode, with 8 participants, no teams
Extreme We're #1!!
Mario Kart Piskel : Get all gold cups in Grand Prix mode
Difficult Kingdoms Castle: Ground Floor
Kingdoms Castle : Finish the game in the 1st position in 150cc, without going on the second floor
With 8 participants, no teams
Difficult Block Metropolis: Yellow Side
Block Metropolis : Finish the game in the 1st position in 150cc, Without going into the Yellow District
With 8 participants, no teams
Difficult