This is the first Mario platformer Rosalina is playable.
8 bit Luigi's are scattered throughout the entire game, in honor of Luigi's 30 year anniversary.
The Motley Bossblob boss character is inspired by Marx from the Kirby franchise.
After 25 years, Princess Peach finally returns as a playable character in a Mario platformer since Super Mario Bros. 2 (1988).
The Life Roulette Mini Game's music is a remix of the character select music from Super Mario Bros. 2 (1988).