Mega King Boo’s theme|Wrath of a King|Chaoslord Iadoa’s Theme
 
Fight prologue:  
Mario:“Princess!!”  
Peach:“Marioo!!”
 
EHAHAHAHAHA!
 
King Boo:“Worthless Subjects!! You’re all lucky that you defeated my only defenses, living scums!”
 
Scout:“Head the road, Bozo, yah done!”  
Rubeca:“Hand over peach, Boo!”
 
EHAHAHAHA!
 
King Boo:“Foolish beings, I’m not one to be given up so easily… With the very bark of the Tree of Harmony I hold dear in my grasp. My very plan is coming into intuition!!”
 
Rainbow:“And what exactly is your plan? Laughalot?”  
…
 
 
“With these very elements… Honesty element glows Their power… Kindness and Generosity elements glow Their VERY POWER! Loyalty glows CAN SO BE CORRUPTED AND BRING OUT THEIR FULL, COMPLETE POTENTIAL! Laughter glows ALL OF THIS, WILL TRANSFORM ME, INTO A NIGHTMARE YOU’LL FOREVER!.. Magic glows impulsively REGREEET!
 
EHAHAHAHA! EHAHAHAHA! EHAHAHA! EHAHAHahaha!… WooooooeroorororRORORORORORORORORORORERERERRERERRERRERERRRRR- CRASH!! EEEHAHAHAHAHAHAHA!
 
Announcer:“MEGA KING BOO!”
 

 
Thus the battle, begins…