: Her repressed trauma manifests as blood-soaked phantoms that scream "LIAR!" at her, shattering her mask of peaceful indifference.

: The electronic soundtrack features glitchy, disorienting beats that heighten the sense of "techno-horror". 💡 The "Phantom" Encounter

I can break down the complex Timeline Connections between this episode and the rest of the series or explain the difference between the Real Boogiepop and the Boogiepop Phantom seen here. Boogiepop Phantom - THEM Anime Reviews

The climax features a confrontation with (an entity distinct from the original Boogiepop), who delivers a brutal reality check.

: The use of heavy vignetting (darkened corners) creates a claustrophobic sense of "tunnel vision," forcing you to look into the series rather than just watch it.