Hehe, bizarre indeed. I actually saw that last week on the PS3's Store and thought, "What in the . . . ?"
I watched the free episode of Shakugan no Shana (I wager most Americans mispronounce that first word; why didn't Geneon translate the title for localization?), and it was quite interesting. Maybe I should open up my DVDs of the series already. All I've opened of it so far, years ago, was the OST CD that came bundled with Volume 1. Unique tone, much different from the composer's other work (Kow Otani, also composer of Gundam W, Daphne in the Brilliant Blue, the second Tenchi Muyo movie, and Shadow of the Colossus).
Speaking of music, remember that crazy ending theme for Dragon Half? It (and the rest of the show's music) was composed by Kouhei Tanaka, whom you know from his work in Gravity Rush and Resonance of Fate. He's also the composer for Sega's hit Sakura Taisen series, as well as anime works including G Gundam, several Yuusha series, and One Piece (one of two composers on OP).
Crunchyroll is reporting, by the way, that Neptunia is getting an anime series. :) There's an announcement in Dengeki PlayStation magazine this week (this week is also when the newest Neptunia game releases).