Kingdom Hearts χ OST - Night of Tragedy (extended)

The Corridor of Darkness's battle theme. I took it from Birth by Sleep's final mix, since I can't find it in Union Cross's theater gallery.

Tags: chi, X, OST, music, BGM, soundtrack, Square-Enix, Disney, mobile game, unchained, union cross, KHX, KHUX, KHχ, KHUχ, realm, combat, fight,