Challenges completed by BowserJr03
Oh Yeah!
Turning-12983 Circuit : Use the Shortcut in less than 20s

Playa Koopa
SNES - Koopa Beach 1 (Remake) : Finish in the 1st position in 200cc class, in VS mode, without using any item
In difficult mode, with 8 participants

You Just Got Coconut Malled.... again
Wii - Coconut Mall : Finish in the 1st position in VS mode, in impossible mode
With 8 participants, no teams

RHGP - Star Cup : Get the gold cup in Grand Prix mode, with 40 points or more

Smashing research
Giant Dusk Chasm : Destroy all boxes in Time Trial mode, with Donkey-kong, without touching any Thwomp, in less than 30s

Tight turns!
Acidic "&" Castleroad : Finish in the 1st position in VS mode, in 150cc class, without drifting, with Wario
With 8 participants, no teams

Forty Stunts
MKRM SNESB Battle Course 5 : Finish the game by performing 40 tricks, with Luigi, with 20 participants

Crate Smasher
Toad Town : Destroy all boxes in VS mode, in 150cc class, with 1 participant, in less than 3:00

Early Mission (Not Official)
Figure-9-Circut (Trashy Edition) : Collect all coins with Yoshi, in less than 50s, with 1 participant

Impossible
SNES Impossible Koopa Beach 2 : Complete the track in 150cc class, with 20 participants
In difficult mode

Dear Mario, please come to the castle...
Mario Kart Galaxy: GCN Mario Circuit (complete mode) : Finish in the 1st position in VS mode, without drifting, without touching any Goomba, with 4 participants, with Mario
No teams

Mario Party: Star Rush - Balloon Bash - Map 1 : Collect all coins in less than 20s, with 4 participants

Mario Party: Star Rush - Balloon Bash - Map 3 : Collect all coins with 4 participants, in less than 40s
No teams

200cc speedrun
SNES Bowser Castle 4 : Complete the track in less than 48s in Time Trial mode, in 200cc class

150cc speedrun
SNES Bowser Castle 4 : Complete the track in less than 1:03 in Time Trial mode, in 150cc class

beastryory 2
be straight 1.0 : Finish the game in the 1st position in 150cc class, in less than 5:00
No teams, with 8 participants

150cc Staff Ghost
STK Frigid Frosty Footpath : Complete the track in less than 1:30 in 150cc class

200cc Staff Ghost
STK Frigid Frosty Footpath : Complete the track in less than 1:12 in 200cc class

Mission 3-4: Destroy all 24 Cheep Cheeps on the island with items in 1:00 on SBOK4 Shy Guy Bay.
SBOK5 SBOK4 Shy Guy Bay : Destroy all Cheep-Cheeps in VS mode, in 150cc class, with Yoshi, in less than 1:00, with 1 participant

spooky avoiding
Dead soul Graveyard : Complete the track without touching any moving tree nor tree
