The grey Bowser represents his appearance in Super Mario Odyssey, where he is depicted wearing a white wedding tuxedo with a spiky design. The white Peach ally represents her appearance in Odyssey, where Bowser attempts to force her into marrying him. The music track is the theme for the Underground Moon Caverns in Odyssey, as Mario has to travel to the Moon Kingdom in order to stop the forced marriage. The first battle condition requires the player to protect the Peach ally fighter from being KO'd by Bowser, referencing Peach’s damsel-in-distress role in the same game. Bowser's jumping, side kick dash attack, and increased attack power and move speed reference Bowser's boss battles in Odyssey, where he will quickly jump around the battle arena and use powerful physical attacks.
