Childish killer

Cross Line ~Childish Killer~ is the theme of Jin versus Tsubaki, introduced in Extend, with vocals by Continuum Shift's announcer Dale Paris Sanchez, and opera singer Sachi Kitazawa providing the chorus. There is also an instrumental version of the theme called Cross Line and is also the name the theme is given within the game.

It is rearranged in Chronophantasma, under the name Cross Line II.

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