混沌头
Hoshirai Orjel (Chaos Head)
Characters from Takumi's favorite fictional anime 'Blood Tune' also appear in his fantasies as hints in his imagination.
Re-experiencing the B ending of the 2008 PC Chaos Head
The original B ending lets Takumi experience the New Generation incident again, presenting the truth of the crime from a previously unseen perspective; Both 2008 clearing records distinguish it from the initial main storyline.
Chaos head
"Chaos Head" is produced by MAGES., Nitro+, and RED FLAGSHIP, classified as a delusional science ADV, with a release date of 2008-04-25, and platforms including PC.
～ PHANTASM ～ End Prophecy
PHANTASM's 2009 debut album, blending existing tracks, arranged versions, and three new tracks; The DVD also includes footage from the live event.
CHAOS; HEAD VOCAL COLLECTION
A two-CD vocal compilation released in 2011, totaling 29 tracks, compiling "CHAOS;" HEAD' original PC, NOAH, Love Chu☆Chu!, and songs related to the TV anime.
CHAOS; HEADドラマCD The parallel bootleg
A radio drama CD released on December 3, 2008. A new case in the suburbs of Shibuya in the story prompts investigations by various characters; The entire album consists of a prologue, six scenes, and eight epilogues, with the cover art illustrated by Yukihiro Matsuo.
CHAOS; HEAD Original Soundtrack
Released on July 4, 2008, catalog number FPBD-0073. The two CDs contain 34 tracks in total, including 29 BGM tracks and five vocal tracks; Find the blue, Desire Blue sky, Blood of the Contract in Sin, Gladial as a short edition, and Cry as the full version.
Find the blue（FVCG-1004）
The single Kanako Ito was released on May 7, 2008, including Find the blue, Desire Blue sky, and their respective off vocals.