Gwahaha! If it isn't my good friend, Luigi! It's me, your ol' pal KING BOO! Y-You're not telling me you FORGOT ME!? Well, I certainly haven't forgotten YOU! You, that ratty vacuum cleaner, and that stinky old geezer who made it! I haven't forgiven what you did to me, so I've led the ghosts here in an uprising! But you... you and that DISGUSTING machine just SHLEEEERP-SHWOOOOOP-SWHLOOORPSHLOOOORP-SHWEEEERPed them all up! You think I'll let you get away with that!? You're going down this time, Green 'Stache!
Credit to Piskelapp, Nintendo and all parties involved. Completely original, based on Nintendo's official image + some spoopy Luigi writing. Part of the background is the sprite, part is background. Feel free to use but I IMPLORE you to give credit. The sprite is inside the project and has the music with it. Enjoy!