Top rated challenges
inside of every road is a rainbow
smile flowers rainbow [jp] : Finish 1st 1 time in a row in VS mode, in 1st place or better
Extreme Test challenge
Test circuit : Reach the central zone in VS mode, by falling at most 3 times
Easy staying on the road
Loop for 25-inf cpus : Complete the track without getting of the road
Easy Crossroads : Collect all coins in Time Trial mode
Easy Racing Pro
Fish Beach Resort : Finish in the 1st position in VS mode, in 150cc, without going backwards, in extreme mode, with 4 participants, with Shy Guy, without touching any Cheep-Cheep, without falling
No teams
Extreme Rice Beach 1 : Hit all item boxes without touching any Cheep-Cheep, without drifting, without using any item, with Wario
Medium Scuttle Town 1 : Destroy 10 boxes in Time Trial mode
Easy pi diameter
pi : here's a clue there's a passage on top of pi in VS mode, with 1 participant
Easy Golden Shroom Mine
Pathway Desert : Collect 20 coins without touching the walls, with 1 participant
Easy tener monedas
jadin del cielo : Collect 9 coins without using any item
Easy Hazy Maze Cave: 100 Coins
Hazy Maze Cave : Collect 100 coins with Goomba
Easy Gliding Across
Tick-Tock Overpass : Complete the track in less than 2:00 in VS mode, in 150cc
With 8 participants, no teams
Easy coje las monedas en el puente de maracaibo
Maracaibo zulia bridge : Collect all coins in less than 1:00, with venezuela
Medium Collect All 30 Coins on Lightning - R Trace in 3 laps
Lightning - R Trace : Collect all coins in Time Trial mode, with Mario
Easy Finish 3 laps in Big Blue - Slalom in 3 minutes
Big Blue - Slalom : Complete the track in less than 3:00 in Time Trial mode
Medium f1 i think
large racetrack : Finish in the 1st position in 200cc, without touching the walls, without drifting, with Mario, in medium mode
With 8 participants
Medium Cure Star To The Rescue!
Super Duper : Finish in the 1st position with Hikaru Hoshina
With 8 participants
Easy Zones of the Castle
Golbin Castle : Pass through these zones. in 150cc, without touching any Goomba, Chomp, bus, crab nor box
Easy Arcade Deluxe Winner!
Mario Kart Arcade GP DX : Get all gold cups
Difficult The 1 coin hunt
Ghost Valley 2 made in quick mode : Collect 1 coin in Time Trial mode
Easy