Challenges completed by MKChamp
Limit? Maybe
Mario Roll : Complete the track in less than 0:08:336 in Time Trial mode

The Hardest Challenge, totally
Mario Roll : Complete the track in less than 15s in Time Trial mode

3-1 Cheep Cheep Breakout
Chain Chomp Park : Reach the end of the river in Time Trial mode, in 150cc, without touching any Cheep-Cheep, in less than 10s

Collect All Coins
Daisy Circuit : Collect all coins in 150cc, in Time Trial mode, in less than 1:00

Best Planet Ever
Mario Kart 4 (O) - Rainbow Road (Remake) : Visit Planet Roca Picuda

Luigi Wins by doing Absolutely Nothing.
Auto Arena : Finish the game in the 1st position without turning, without drifting, without touching the walls, without falling, without going backwards, with Luigi
With 8 participants

Vs. Purple Mario (Staff Ghost Challenge)
Worst Garden Ever : Complete the track in less than 0:52:977 in Time Trial mode, with Mario

Speed mann
Time Trial This : Complete the track in less than 30s

Vs. Rosalina
Worst Garden Ever : Finish in the 1st position in VS mode

Toad Round
Worst Garden Ever : Finish in the 1st position in VS mode, with Toad

Just Beat the Track
Big Blue : Complete the track

Takin' Dem Shortcuts
Big Blue : Take one of the off-road shortcuts.

Collecting Coins
Big Blue : Go on those things that give you coins...

Finish 1st. That's it.
Pinball Purgatory : Finish in the 1st position in easy mode, with 199 participants

Speed Shopping
MK7 Coconut Mall : Get Out Of The Mall in less than 25s, without using any item
No teams

Boss Race
Boulder Canyon : Finish in the 1st position in VS mode, in 150cc, with 2 participants, by starting with 43s delay
In difficult mode

Mission 3.5: Drive 1 lap forward then backward on Luigi Raceway in 1:40
Luigi Raceway : Go one lap then turn around and do it backwards in Time Trial mode, with Luigi, in less than 1:40

Mission Mode 1.1: Reach Tunnel in Luigi Raceway
Luigi Raceway : Reach the tunnel on Luigi Raceway in less than 25 seconds in Time Trial mode, in less than 30s, with Luigi

Speed Speedy Boy
Running in the 90's : Complete the track in less than 55s in VS mode, without touching item boxes, without using any item
In difficult mode, no teams, with 8 participants

Déja vu
Running in the 90's : Finish in the 1st position in VS mode, without drifting, with 100 participants
In difficult mode, no teams
