"Mwa ha ha! How brash of you to come and face me, Luigi! You should have just run away while you had the chance! But instead you stayed and fought all the way up here to oppose me? How foolish! You may have made your way through the hotel using E. Gadd's frustrating inventions to suck up all the ghosts in your path... You were all SHWEERRPP-SHLOOOOP-WHOOORPP-SHLEEOOORG! Ahem. Anyway, just because you vacuumed up all of those ghosts doesn't mean you can take me on! It doesn't matter that you beat the hotel owner... Hellen Gravely! Ooooooo! She let all your friends get away! It's so frustrating when you trap something in a painting and it gets out, you know? Arg! Hellen Gravely... All those ghosts... Useless! I have to do everything myself! I'm sick of this! No more mercy for you, Luigi! No more tricks--no more carefully laid plans! Now it's time for raw King Boo gusto! You're all going in a painting! An ensemble portrait is your fate!"
January 1, 1970
https://en.wikiquote.org/wiki/Luigi's_Mansion_3