Childish killer

Childish killer (子供じみた殺人者) is the battle theme for Jin Kisaragi and Tsubaki Yayoi.

Cross Line

 * Length: 4:39
 * Cross Line is the instrumental version of Childish killer. Featured exclusively in the BlazBlue Song Interlude Album.

Childish killer II

 * Length: 5:24
 * An arrangement introduced in BlazBlue: Chrono Phatasma by YUHKI.

Music Albums

 * BlazBlue Song Interlude (Childish killer, Cross Line)
 * BlazBlue Vocal Album Song Impression (Childish killer)
 * BlazBlue Phase III Chrono Phantasma Original Soundtrack (Chidish killer II)

BlazBlue: Continuum Shift Extend

 * Battle BGM (Childish killer)

BlazBlue: Chrono Phantasma

 * Battle BGM (Childish Killer II, Childish killer as DLC)
 * Story Mode BGM (Childish Killer II)
 * Chrono Phantasma Episode 6: Friendship, Gag Reel
 * Chrono Phantasma Episode 14: Inherited Will

BlazBlue: Chrono Phantasma Extend

 * Battle BGM (Childish Killer II, Childish killer as a purchasable in-game item)
 * Story Mode BGM (Childish Killer II)
 * Chrono Phantasma Episode 6: Friendship, Gag Reel
 * Chrono Phantasma Episode 14: Inherited Will

BlazBlue: Central Fiction

 * Battle BGM (Childish Killer II, Childish killer as a purchasable in-game item)

Concerts

 * BlazBlue Music Live 2015 (Childish killer)

Trivia

 * In episode 11 of Blue Radio Ace, Childish killer ranked 5th in a BlazBlue survey that asked, "What is your favorite song?"
 * Childish killer II serves as the battle music between Jin Kisaragi and Izayoi during Story Mode of Chrono Phantasma.