Challenges completed by Loewi

Shhhhh! Don't wake the Ptooies!

Riverside Park: Find all the sleeping Ptooies without falling, without touching any Sleeping Ptooie

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

Galactic Harmony

Rainbow Road (Outdated): Finish in the 1st position in VS mode, without falling, with Rosalina, with 12 participants

In difficult mode, no teams

Shy Guy goes for the money.

Port Shy Guy: Finish in the 1st position in VS mode, with Shy Guy

With 8 participants, in difficult mode

SNES Redux

Pixel SNES Cup: Get the gold cup in Grand Prix mode

A long road of Silence!

F-Zero Silence (GBA F-Zero Climax): Complete the track

Silence! Mach 150cc Race!

F-Zero Silence (GBA F-Zero Climax): Finish in the 1st position in VS mode

In difficult mode, with 8 participants, no teams

47th State

USA Map: Reach New Mexico

48th State

USA Map: Reach Arizona

45th State

USA Map: Reach Utah

36th State

USA Map: Reach Nevada

Super Cup 2/2: Get the gold cup

Unlock Dr. Noreen Wakeman!

Mario Kart: Game Maker Studio Bundle: Get all gold cups

Super Cup 1/2: Get the gold cup

Mario Kart: Speed Strife: Get all gold cups

Special Cup: Get the gold cup

Star Cup: Get the gold cup

Flower Cup: Get the gold cup

Mushroom Cup: Get the gold cup in Grand Prix mode

With 8 participants, in difficult mode, no teams