Luigi: Hey Mario! You sure you know what you're doing?
Mario Mario: Sure, I'm doing 60 miles an hour.
When Mario, Toad and Luigi are driving to the rebel fort, the seatbelts they are wearing disappear for most of the scene.
When the Quirks uses their noses to play a song to get rid of Koopa for good, they play the theme song from the video game The Legend of Zelda.