The pink Diddy Kong's yellow color scheme and star-patterned shirt represents Tooty, a young female bear cub who features blonde hair and a star-patterned shirt.
The Banjo & Kazooie minion reference their appearance as the main playable characters in Banjo-Kazooie, where Banjo serves as Tooty's older brother.
The Banjo & Kazooie minion appears when the stage rotates to Gruntilda's Lair, referencing how Banjo and Kazooie must travel inside Gruntilda's Lair and rescue Tooty from Gruntilda.
The music track represents the main theme of Banjo-Kazooie, which is played during the game's opening cutscene where Tooty appears and plays the flute.
The battle conditions reference how Banjo and Kazooie rescues Tooty from Gruntilda, where the latter attempted to drain the former's youth and beauty.
Other trivia:
This spirit's Poison Damage Reduced ability references how Tooty is saved from having her youth and beauty stolen by Gruntilda.
