Challenges list of LuigiDawg
A Lonely Spirit
Indigo Circus : Become the lone Boo's only friend

Circus Supplies
Indigo Circus : THE BOXES ARE BACK

Beat the Staff Ghost
Sky-High Speedway : Complete the track in less than 1:04 in Time Trial mode

Shy Pirates
Urchin Beach : Complete the track with Shy Guy

"Let's break into the room next floor... 'Cept I need to go to the bathroom first."
The Circle of Party : Survive more than 1:00 with 5 participants, without touching item boxes, without losing any balloons

"Hey Sidewalk! Get out of my way!"
The Circle of Party : Hit 3 opponents with 5 participants

Help I ran out of good challenge names
help i ran out of good names : Just hold down on your keyboard in Time Trial mode, in less than 4s

Wario Kart: Killer Weeds
Swiss Cheeseway : Reach the King Piranha in VS mode, with Wario, without touching item boxes, without drifting

All Kooped Up
Chocolate Plains : Finish in the 1st position with Koopa
In difficult mode

You're Not Waterproof
Learn to Hop : Complete the track by falling at most 2 times

Turbo Tango
Orange Sky Hills : Finish in the 1st position in VS mode, by performing 100 Mini-Turbos, with 12 participants

Money Scavenger Hunt
Castle de Hodgepodge : Collect 50 coins

Bup 8
BUP 2 : Finish the game in the 1st position with Toad

Dueling BUPs
BUP 2 : Hit 1 opponent with 2 participants, without losing any balloons

Bup 9
BUP 2 : Hit all item boxes in less than 1:30

Who is, in fact, in the position of the classification of one at this very instant in time? That would happen to be me referring to myself in the third person, Luigi Mario.
Jolly Codger Lagoon : Finish in the 1st position in 1st place, with 1 participant, by performing 11 Mini-Turbos, by starting with 1s delay, by performing 1 trick, by performing 1 Super Mini-Turbo, in less than 11:11, with Luigi

100 coins afloat
Jolly Codger Lagoon : Collect all coins

Switch Star of the Emerald
Jolly Codger Lagoon : Reach the Emerald in less than 15s

*silent stare*
Drake, where's the door hole? : Finish the game in the 1st position with 2 participants

Drake? ...Where's the door hole?
Drake, where's the door hole? : Go to the Ps on the wood that is near the Door Hole
