Phantasmagloria has a red afro that conceals her short black hair, as well as red lipstick, purple earrings, blue bracelets, and headphones around her neck. She is dressed in a red shoulderless tank top with no sleeves and purple skirt.
She appears and startles Luigi with a loud noise from the speakers back-stage after luring him into a false sense of security with an apparently unguarded fifteenth floor elevator button (which causes him to drop it in surprise as he gets knocked back off the front of the dance floor), and commands eight Goobs in hoodies to try to prevent Luigi from getting the button again.
After Luigi manages to suck in the owner of the button, DJ intercepts the button and, after briefly removing her afro wig to expose her ghostly eyes to wink at him, confronts him personally using disco-style dance moves as well as vinyl records.
In the first phase of the battle, the player needs to fight eight hoodie-wearing Goobs, and specifically needs to choose the right Goob who has the button, as otherwise the Goob will play keepaway with the button and give it to another Goob. After selecting the right one, the Goob with the button will throw it to another hoodie Goob and disappears. The remaining Goobs will do a spin attack before doing the worm, during which Luigi can again select another Goob with the button. If he takes too long, or he chooses too many wrong ones, the Goob will repeat hiding the button from the beginning. After finding the Goob correctly twice, the player only needs to suck up the Goob who has the button. The button will fire out of the Poltergust G-00, and DJ Phantasmagloria will catch it.
In the second phase of the battle, DJ Phantasmagloria will attack by throwing vinyl records or otherwise doing a spin attack. The player needs to do a burst to knock her afro off, leaving her vulnerable to a flash and then suck her up. When defeated, she'll do some disco poses before allowing herself to be sucked in, with Luigi getting the floor fifteen button.
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